Windows Analysis Report
Halkbank_Ekstre_20220525_103511_102798 (2).exe

Overview

General Information

Sample Name: Halkbank_Ekstre_20220525_103511_102798 (2).exe
Analysis ID: 635241
MD5: 91b701f0faa2e791ceab8875d57b8701
SHA1: 61f6fc240b0632720f161a5eb1cdc427a3ebc170
SHA256: 9e0ff5207d60d3a7717e906eabff7fe2143f63c820e670d6fd98f0a40a393aec
Tags: AgentTeslaexegeoHalkbankTUR
Infos:

Detection

AgentTesla
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Yara detected AgentTesla
Sigma detected: RegAsm connects to smtp port
Installs a global keyboard hook
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal ftp login credentials
Drops executable to a common third party application directory
Machine Learning detection for sample
Allocates memory in foreign processes
Injects a PE file into a foreign processes
.NET source code contains very large array initializations
Hides that the sample has been downloaded from the Internet (zone.identifier)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
Antivirus or Machine Learning detection for unpacked file
One or more processes crash
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Contains functionality to launch a process as a different user
Sample execution stops while process was sleeping (likely an evasion)
Yara detected Credential Stealer
Contains long sleeps (>= 3 min)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Sample file is different than original file name gathered from version info
PE file contains strange resources
Drops PE files
Tries to load missing DLLs
Detected TCP or UDP traffic on non-standard ports
Checks if the current process is being debugged
Uses SMTP (mail sending)
Creates a window with clipboard capturing capabilities
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Launches processes in debugging mode, may be used to hinder debugging
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Dropped file seen in connection with other malware
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)

Classification

AV Detection
barindex
Found malware configuration
Source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.1.unpack Malware Configuration Extractor: Agenttesla {"Exfil Mode": "SMTP", "Username": "admin@gowiththegecko.com.au", "Password": "2212@Revesby", "Host": "mail.gowiththegecko.com.au"}
Multi AV Scanner detection for submitted file
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Virustotal: Detection: 50% Perma Link
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe ReversingLabs: Detection: 48%
Machine Learning detection for sample
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Joe Sandbox ML: detected
Antivirus or Machine Learning detection for unpacked file
Source: 1.0.RegAsm.exe.400000.0.unpack Avira: Label: TR/Spy.Gen8
Source: 1.2.RegAsm.exe.400000.0.unpack Avira: Label: TR/Spy.Gen8
Source: 1.0.RegAsm.exe.400000.2.unpack Avira: Label: TR/Spy.Gen8
Source: 1.0.RegAsm.exe.400000.4.unpack Avira: Label: TR/Spy.Gen8
Source: 1.0.RegAsm.exe.400000.1.unpack Avira: Label: TR/Spy.Gen8
Source: 1.0.RegAsm.exe.400000.3.unpack Avira: Label: TR/Spy.Gen8
Uses 32bit PE files
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT
Source: Binary string: System.Core.ni.pdbRSDSD source: WER4EF.tmp.dmp.9.dr
Source: Binary string: System.Windows.Forms.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: mscorlib.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: System.ni.pdbRSDS source: WER4EF.tmp.dmp.9.dr
Source: Binary string: mscorlib.ni.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: RegAsm.pdb source: firefox.exe, firefox.exe, 00000011.00000000.324941637.0000000000F82000.00000002.00000001.01000000.00000009.sdmp, firefox.exe.1.dr
Source: Binary string: l98 (2).PDB source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000000.276685351.0000000000B57000.00000004.00000010.00020000.00000000.sdmp
Source: Binary string: System.Core.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: RegAsm.pdb4 source: firefox.exe, 00000011.00000000.324941637.0000000000F82000.00000002.00000001.01000000.00000009.sdmp, firefox.exe.1.dr
Source: Binary string: mscorlib.ni.pdbRSDS source: WER4EF.tmp.dmp.9.dr
Source: Binary string: .pdbE( source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000002.300533200.0000000000B57000.00000004.00000010.00020000.00000000.sdmp, Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000000.276685351.0000000000B57000.00000004.00000010.00020000.00000000.sdmp
Source: Binary string: System.Core.pdbH source: WER4EF.tmp.dmp.9.dr
Source: Binary string: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).PDB source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000002.300533200.0000000000B57000.00000004.00000010.00020000.00000000.sdmp, Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000000.276685351.0000000000B57000.00000004.00000010.00020000.00000000.sdmp
Source: Binary string: System.ni.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: System.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: System.Core.ni.pdb source: WER4EF.tmp.dmp.9.dr
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: DIGITALPACIFIC-AUDigitalPacificPtyLtdAustraliaAU DIGITALPACIFIC-AUDigitalPacificPtyLtdAustraliaAU
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.4:49758 -> 110.173.135.85:587
Uses SMTP (mail sending)
Source: global traffic TCP traffic: 192.168.2.4:49758 -> 110.173.135.85:587
Source: RegAsm.exe, 00000001.00000002.775664989.0000000002841000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://127.0.0.1:HTTP/1.1
Source: RegAsm.exe, 00000001.00000002.777760334.0000000002B42000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.777850525.0000000002B92000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://71gdspwVDHVhJVZvkZU1.org
Source: RegAsm.exe, 00000001.00000002.775664989.0000000002841000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://DynDns.comDynDNSnamejidpasswordPsi/Psi
Source: RegAsm.exe, 00000001.00000002.775664989.0000000002841000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://LJWAmo.com
Source: RegAsm.exe, 00000001.00000002.778089897.0000000002BE1000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779083550.0000000005E8B000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.777850525.0000000002B92000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779036322.0000000005E20000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://crl.comodoca.com/AAACertificateServices.crl04
Source: RegAsm.exe, 00000001.00000002.779083550.0000000005E8B000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://crl.comodoca.com/AAACertificateServices.crl06
Source: RegAsm.exe, 00000001.00000002.778089897.0000000002BE1000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.775295882.0000000000C51000.00000004.00000020.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779083550.0000000005E8B000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.777850525.0000000002B92000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779036322.0000000005E20000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://crl.comodoca.com/COMODORSACertificationAuthority.crl0q
Source: RegAsm.exe, 00000001.00000002.778089897.0000000002BE1000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779083550.0000000005E8B000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.777850525.0000000002B92000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779036322.0000000005E20000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://crl.comodoca.com/cPanelIncCertificationAuthority.crl0
Source: RegAsm.exe, 00000001.00000003.298617705.0000000005E2B000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779036322.0000000005E20000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://crl.microsoft.?t
Source: RegAsm.exe, 00000001.00000002.778089897.0000000002BE1000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.777850525.0000000002B92000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://mail.gowiththegecko.com.au
Source: RegAsm.exe, 00000001.00000002.778089897.0000000002BE1000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.775295882.0000000000C51000.00000004.00000020.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779083550.0000000005E8B000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.777850525.0000000002B92000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779036322.0000000005E20000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://ocsp.comodoca.com0
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe String found in binary or memory: http://sawebservice.red-gate.com/
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe String found in binary or memory: http://www.smartassembly.com/webservices/Reporting/
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe String found in binary or memory: http://www.smartassembly.com/webservices/Reporting/UploadReport2
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe String found in binary or memory: http://www.smartassembly.com/webservices/UploadReportLogin/
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe String found in binary or memory: http://www.smartassembly.com/webservices/UploadReportLogin/GetServerURL
Source: RegAsm.exe, 00000001.00000002.775664989.0000000002841000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://api.ipify.org%
Source: RegAsm.exe, 00000001.00000002.775664989.0000000002841000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://api.ipify.org%appdata
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000002.306366536.0000000002A81000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://dsssdsa.fa
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe String found in binary or memory: https://dsssdsa.fa)Uri
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe String found in binary or memory: https://rufus.ie
Source: RegAsm.exe, 00000001.00000002.778089897.0000000002BE1000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779083550.0000000005E8B000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.777850525.0000000002B92000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000001.00000002.779036322.0000000005E20000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://sectigo.com/CPS0
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe String found in binary or memory: https://www.gnu.org/licenses/gpl-3.0.htmlF
Source: RegAsm.exe, 00000001.00000002.775664989.0000000002841000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://www.theonionrouter.com/dist.torproject.org/torbrowser/9.5.3/tor-win32-0.4.3.6.ziphttps://www
Source: unknown DNS traffic detected: queries for: mail.gowiththegecko.com.au

Key, Mouse, Clipboard, Microphone and Screen Capturing
barindex
Installs a global keyboard hook
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Windows user hook set: 0 keyboard low level C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Jump to behavior
Creates a window with clipboard capturing capabilities
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Window created: window name: CLIPBRDWNDCLASS Jump to behavior

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.6.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 1.0.RegAsm.exe.400000.3.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.3.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 1.0.RegAsm.exe.400000.2.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 1.0.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.3.raw.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.2.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.2.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 1.0.RegAsm.exe.400000.1.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.2.raw.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.5.raw.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.1.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 1.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 1.0.RegAsm.exe.400000.4.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.5.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.1.raw.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.6.raw.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
Source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.2.raw.unpack, type: UNPACKEDPE Matched rule: AgentTeslaV3 infostealer payload Author: ditekSHen
.NET source code contains very large array initializations
Source: 1.0.RegAsm.exe.400000.0.unpack, u003cPrivateImplementationDetailsu003eu007b9AB90D2Fu002dBB14u002d48B6u002d9AC7u002dC8C0B6A282FCu007d/ADCA6523u002d6D89u002d4B22u002dAEE7u002d162F3696E7B7.cs Large array initialization: .cctor: array initializer size 11627
Source: 1.2.RegAsm.exe.400000.0.unpack, u003cPrivateImplementationDetailsu003eu007b9AB90D2Fu002dBB14u002d48B6u002d9AC7u002dC8C0B6A282FCu007d/ADCA6523u002d6D89u002d4B22u002dAEE7u002d162F3696E7B7.cs Large array initialization: .cctor: array initializer size 11627
Uses 32bit PE files
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE
Yara signature match
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.6.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 1.0.RegAsm.exe.400000.3.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.3.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 1.0.RegAsm.exe.400000.2.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 1.0.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.3.raw.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.2.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.2.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 1.0.RegAsm.exe.400000.1.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.2.raw.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.5.raw.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.1.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 1.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 1.0.RegAsm.exe.400000.4.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.5.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.1.raw.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.6.raw.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
Source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.2.raw.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_AgentTeslaV3 author = ditekSHen, description = AgentTeslaV3 infostealer payload
One or more processes crash
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 1304
Detected potential crypto function
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 1_2_00D5F0A0 1_2_00D5F0A0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 1_2_00D5F3E8 1_2_00D5F3E8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 1_2_00D56150 1_2_00D56150
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Code function: 17_2_00F83DFE 17_2_00F83DFE
Contains functionality to launch a process as a different user
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Code function: 0_2_00FD2F08 CreateProcessAsUserA, 0_2_00FD2F08
Sample file is different than original file name gathered from version info
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000002.306366536.0000000002A81000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: OriginalFilenameoAgrQVJOHIRjstJaVRAzBmBW.exe4 vs Halkbank_Ekstre_20220525_103511_102798 (2).exe
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000000.276635209.00000000007AE000.00000002.00000001.01000000.00000003.sdmp Binary or memory string: OriginalFilenamerufus-3.18.exe, vs Halkbank_Ekstre_20220525_103511_102798 (2).exe
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000002.306509807.0000000003A89000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: OriginalFilenameoAgrQVJOHIRjstJaVRAzBmBW.exe4 vs Halkbank_Ekstre_20220525_103511_102798 (2).exe
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Binary or memory string: OriginalFilenamerufus-3.18.exe, vs Halkbank_Ekstre_20220525_103511_102798 (2).exe
PE file contains strange resources
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Tries to load missing DLLs
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: sfc.dll Jump to behavior
Dropped file seen in connection with other malware
Source: Joe Sandbox View Dropped File: C:\Users\user\AppData\Roaming\firefox\firefox.exe FFE4480CCC81B061F725C54587E9D1BA96547D27FE28083305D75796F2EB3E74
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Virustotal: Detection: 50%
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe ReversingLabs: Detection: 48%
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe File read: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Jump to behavior
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: unknown Process created: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe "C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe"
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 1304
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 1304
Source: unknown Process created: C:\Users\user\AppData\Roaming\firefox\firefox.exe "C:\Users\user\AppData\Roaming\firefox\firefox.exe"
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 1304 Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File created: C:\Users\user\AppData\Roaming\firefox Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe File created: C:\Users\user\AppData\Local\Temp\2d_PCX.ico Jump to behavior
Source: classification engine Classification label: mal100.spre.troj.spyw.evad.winEXE@9/9@2/1
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe File read: C:\Users\desktop.ini Jump to behavior
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 49.83%
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess2284
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6628:120:WilError_01
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, u0097/u0005u0002.cs Cryptographic APIs: 'CreateDecryptor'
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, u0097/u0005u0002.cs Cryptographic APIs: 'TransformFinalBlock'
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, u001a/u0016u0017.cs Cryptographic APIs: 'CreateDecryptor', 'TransformFinalBlock'
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, u001a/u0016u0017.cs Cryptographic APIs: 'CreateDecryptor', 'TransformFinalBlock'
Source: 1.0.RegAsm.exe.400000.0.unpack, A/F1.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 1.0.RegAsm.exe.400000.0.unpack, A/F1.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 1.2.RegAsm.exe.400000.0.unpack, A/F1.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 1.2.RegAsm.exe.400000.0.unpack, A/F1.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe File opened: C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorrc.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: Halkbank_Ekstre_20220525_103511_102798 (2).exe Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT
Source: Binary string: System.Core.ni.pdbRSDSD source: WER4EF.tmp.dmp.9.dr
Source: Binary string: System.Windows.Forms.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: mscorlib.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: System.ni.pdbRSDS source: WER4EF.tmp.dmp.9.dr
Source: Binary string: mscorlib.ni.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: RegAsm.pdb source: firefox.exe, firefox.exe, 00000011.00000000.324941637.0000000000F82000.00000002.00000001.01000000.00000009.sdmp, firefox.exe.1.dr
Source: Binary string: l98 (2).PDB source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000000.276685351.0000000000B57000.00000004.00000010.00020000.00000000.sdmp
Source: Binary string: System.Core.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: RegAsm.pdb4 source: firefox.exe, 00000011.00000000.324941637.0000000000F82000.00000002.00000001.01000000.00000009.sdmp, firefox.exe.1.dr
Source: Binary string: mscorlib.ni.pdbRSDS source: WER4EF.tmp.dmp.9.dr
Source: Binary string: .pdbE( source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000002.300533200.0000000000B57000.00000004.00000010.00020000.00000000.sdmp, Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000000.276685351.0000000000B57000.00000004.00000010.00020000.00000000.sdmp
Source: Binary string: System.Core.pdbH source: WER4EF.tmp.dmp.9.dr
Source: Binary string: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).PDB source: Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000002.300533200.0000000000B57000.00000004.00000010.00020000.00000000.sdmp, Halkbank_Ekstre_20220525_103511_102798 (2).exe, 00000000.00000000.276685351.0000000000B57000.00000004.00000010.00020000.00000000.sdmp
Source: Binary string: System.ni.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: System.pdb source: WER4EF.tmp.dmp.9.dr
Source: Binary string: System.Core.ni.pdb source: WER4EF.tmp.dmp.9.dr
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Code function: 17_2_00F84469 push cs; retf 17_2_00F8449E
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Code function: 17_2_00F844A3 push es; retf 17_2_00F844A4
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Code function: 17_2_00F84289 push es; retf 17_2_00F84294
Source: initial sample Static PE information: section name: .text entropy: 7.75452715389

Persistence and Installation Behavior
barindex
Drops executable to a common third party application directory
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File written: C:\Users\user\AppData\Roaming\firefox\firefox.exe Jump to behavior
Drops PE files
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File created: C:\Users\user\AppData\Roaming\firefox\firefox.exe Jump to dropped file
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Registry value created or modified: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run firefox Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Registry value created or modified: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run firefox Jump to behavior

Hooking and other Techniques for Hiding and Protection
barindex
Hides that the sample has been downloaded from the Internet (zone.identifier)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\firefox\firefox.exe:Zone.Identifier read attributes | delete Jump to behavior
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Registry key monitored for changes: HKEY_CURRENT_USER_Classes Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
barindex
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_NetworkAdapterConfiguration
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_BaseBoard
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe TID: 4828 Thread sleep time: -23980767295822402s >= -30000s Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe TID: 2256 Thread sleep count: 6314 > 30 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe TID: 2256 Thread sleep count: 2608 > 30 Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe TID: 6688 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Contains long sleeps (>= 3 min)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Window / User API: threadDelayed 6314 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Window / User API: threadDelayed 2608 Jump to behavior
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information queried: ProcessInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: RegAsm.exe, 00000001.00000002.779036322.0000000005E20000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dlllter-0000
Enables debug privileges
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process token adjusted: Debug Jump to behavior
Checks if the current process is being debugged
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process queried: DebugPort Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process queried: DebugPort Jump to behavior
Launches processes in debugging mode, may be used to hinder debugging
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 1304 Jump to behavior
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 1_2_00D5FCB8 LdrInitializeThunk, 1_2_00D5FCB8
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion
barindex
Writes to foreign memory regions
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 400000 Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 402000 Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 436000 Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 438000 Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 68A008 Jump to behavior
Allocates memory in foreign processes
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Memory allocated: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 400000 protect: page execute and read and write Jump to behavior
Injects a PE file into a foreign processes
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 400000 value starts with: 4D5A Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 1304 Jump to behavior
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Queries volume information: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.VisualBasic\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: unknown VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\CustomMarshalers\v4.0_4.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\CustomMarshalers\v4.0_4.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Management\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Management.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll VolumeInformation Jump to behavior
Source: C:\Users\user\AppData\Roaming\firefox\firefox.exe Queries volume information: C:\Users\user\AppData\Roaming\firefox\firefox.exe VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\Halkbank_Ekstre_20220525_103511_102798 (2).exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information
barindex
Yara detected AgentTesla
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.6.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.3.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.5.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.5.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.6.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000000.257294583.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000000.255656425.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000000.256552993.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.773543495.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.306509807.0000000003A89000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000000.257741939.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000000.275002773.0000000003A89000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000000.288517970.0000000003A89000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.775664989.0000000002841000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: Halkbank_Ekstre_20220525_103511_102798 (2).exe PID: 2284, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 6056, type: MEMORYSTR
Tries to steal Mail credentials (via file / registry access)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Key opened: HKEY_CURRENT_USER\Software\IncrediMail\Identities Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Key opened: HKEY_CURRENT_USER\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions Jump to behavior
Tries to harvest and steal ftp login credentials
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\FileZilla\recentservers.xml Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\SmartFTP\Client 2.0\Favorites\Quick Connect\ Jump to behavior
Tries to harvest and steal browser information (history, passwords, etc)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File opened: C:\Users\user\AppData\Local\Google\Chrome\User Data\Default\Cookies Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File opened: C:\Users\user\AppData\Local\Google\Chrome\User Data\Default\Login Data Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\Mozilla\Firefox\profiles.ini Jump to behavior
Yara detected Credential Stealer
Source: Yara match File source: 00000001.00000002.775664989.0000000002841000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 6056, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected AgentTesla
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.6.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.3.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.5.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.0.RegAsm.exe.400000.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.5.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3af2170.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.0.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.6.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Halkbank_Ekstre_20220525_103511_102798 (2).exe.3abdb40.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000000.257294583.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000000.255656425.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000000.256552993.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.773543495.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.306509807.0000000003A89000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000000.257741939.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000000.275002773.0000000003A89000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000000.288517970.0000000003A89000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.775664989.0000000002841000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: Halkbank_Ekstre_20220525_103511_102798 (2).exe PID: 2284, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 6056, type: MEMORYSTR
windows-stand
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 635241 Sample: Halkbank_Ekstre_20220525_10... Startdate: 27/05/2022 Architecture: WINDOWS Score: 100 26 Found malware configuration 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 4 other signatures 2->32 6 Halkbank_Ekstre_20220525_103511_102798 (2).exe 2 2->6         started        9 firefox.exe 2 2->9         started        process3 signatures4 34 Writes to foreign memory regions 6->34 36 Allocates memory in foreign processes 6->36 38 Injects a PE file into a foreign processes 6->38 11 RegAsm.exe 2 8 6->11         started        16 WerFault.exe 23 9 6->16         started        18 WerFault.exe 6->18         started        20 conhost.exe 9->20         started        process5 dnsIp6 24 mail.gowiththegecko.com.au 110.173.135.85, 49758, 49762, 587 DIGITALPACIFIC-AUDigitalPacificPtyLtdAustraliaAU Australia 11->24 22 C:\Users\user\AppData\Roaming\...\firefox.exe, PE32 11->22 dropped 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->42 44 Tries to steal Mail credentials (via file / registry access) 11->44 46 6 other signatures 11->46 file7 signatures8
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
110.173.135.85
 mail.gowiththegecko.com.au Australia
55803 DIGITALPACIFIC-AUDigitalPacificPtyLtdAustraliaAU true

Contacted Domains

Name IP Active
mail.gowiththegecko.com.au 110.173.135.85 true