Analysis Report faktura.exe

Overview

General Information

Sample Name: faktura.exe
Analysis ID: 385392
MD5: 4a4501e0665974a9aee852ea13e6e7f6
SHA1: 200399b39a95fa717ccd64e51c7b5515e4b1a3a7
SHA256: cb4b104a48fd8927dd979c9f7381707470432540161a2be6e1eabcee470020b8
Tags: GuLoader
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Potential malicious icon found
Sigma detected: RegAsm connects to smtp port
Yara detected AgentTesla
Yara detected GuLoader
C2 URLs / IPs found in malware configuration
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Hides threads from debuggers
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Checks if the current process is being debugged
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to query CPU information (cpuid)
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
PE file contains strange resources
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Tries to load missing DLLs
Uses 32bit PE files
Uses SMTP (mail sending)
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer

Classification

AV Detection:

barindex
Found malware configuration
Source: 00000003.00000002.904555277.0000000000FA1000.00000040.00000001.sdmp Malware Configuration Extractor: GuLoader {"Payload URL": "https://drive.google.com/uc?export=download&id=14NOGnWkPLNy6theJEcWu4MGC0ytBSV3L", "Injection Process": ["RegAsm.exe", "RegSvcs.exe", "MSBuild.exe"]}
Source: RegAsm.exe.6148.3.memstr Malware Configuration Extractor: Agenttesla {"Username: ": "kwiG9npnHBMTywq", "URL: ": "https://kij0jMdbT7S0DxfQ.net", "To: ": "", "ByHost: ": "mail.felgui.pt:587", "Password: ": "5ghXavUhzAY", "From: ": ""}
Multi AV Scanner detection for submitted file
Source: faktura.exe Virustotal: Detection: 32% Perma Link

Compliance:

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Uses 32bit PE files
Source: faktura.exe Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9445_none_d08c58b4442ba54f\MSVCR80.dll Jump to behavior
Source: unknown HTTPS traffic detected: 216.58.215.225:443 -> 192.168.2.4:49742 version: TLS 1.2
Source: Binary string: mscorrc.pdb source: RegAsm.exe, 00000003.00000002.907361254.000000001CC70000.00000002.00000001.sdmp

Networking:

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C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: https://drive.google.com/uc?export=download&id=14NOGnWkPLNy6theJEcWu4MGC0ytBSV3L
Source: Malware configuration extractor URLs: https://kij0jMdbT7S0DxfQ.net
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.4:49773 -> 185.31.158.175:587
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: ONILisbonPortugalPT ONILisbonPortugalPT
JA3 SSL client fingerprint seen in connection with other malware
Source: Joe Sandbox View JA3 fingerprint: 37f463bf4616ecd445d4a1937da06e19
Uses SMTP (mail sending)
Source: global traffic TCP traffic: 192.168.2.4:49773 -> 185.31.158.175:587
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1DB2A09A recv, 3_2_1DB2A09A
Source: unknown DNS traffic detected: queries for: doc-0o-7c-docs.googleusercontent.com
Source: RegAsm.exe, 00000003.00000002.908261249.000000001DCC1000.00000004.00000001.sdmp String found in binary or memory: http://127.0.0.1:HTTP/1.1
Source: RegAsm.exe, 00000003.00000002.908261249.000000001DCC1000.00000004.00000001.sdmp String found in binary or memory: http://DynDns.comDynDNS
Source: RegAsm.exe, 00000003.00000002.908261249.000000001DCC1000.00000004.00000001.sdmp String found in binary or memory: http://HgEvCf.com
Source: RegAsm.exe String found in binary or memory: https://drive.google.com/uc?export=download&id=14NOGnWkPLNy6theJEcWu4MGC0ytBSV3L
Source: RegAsm.exe, 00000003.00000002.908354318.000000001DD79000.00000004.00000001.sdmp String found in binary or memory: https://kij0jMdbT7S0DxfQ.net
Source: RegAsm.exe, 00000003.00000002.908261249.000000001DCC1000.00000004.00000001.sdmp String found in binary or memory: https://www.theonionrouter.com/dist.torproject.org/torbrowser/9.5.3/tor-win32-0.4.3.6.zip%tordir%%ha
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49742
Source: unknown Network traffic detected: HTTP traffic on port 49742 -> 443
Source: unknown HTTPS traffic detected: 216.58.215.225:443 -> 192.168.2.4:49742 version: TLS 1.2

System Summary:

barindex
Potential malicious icon found
Source: initial sample Icon embedded in PE file: bad icon match: 20047c7c70f0e004
Contains functionality to call native functions
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_022E384F NtResumeThread, 0_2_022E384F
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA33F9 NtProtectVirtualMemory, 3_2_00FA33F9
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA384F NtQueryInformationProcess, 3_2_00FA384F
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1DB2B0BA NtQuerySystemInformation, 3_2_1DB2B0BA
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1DB2B089 NtQuerySystemInformation, 3_2_1DB2B089
Detected potential crypto function
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_004015B8 0_2_004015B8
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_0040827D 0_2_0040827D
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_00405950 0_2_00405950
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_00406351 0_2_00406351
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_022E3BD9 0_2_022E3BD9
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA3BD9 3_2_00FA3BD9
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1DB2283C 3_2_1DB2283C
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1FEEB5E8 3_2_1FEEB5E8
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1FEE9989 3_2_1FEE9989
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1FEEDC90 3_2_1FEEDC90
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_20B13B98 3_2_20B13B98
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_20B145F8 3_2_20B145F8
PE file contains strange resources
Source: faktura.exe Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Sample file is different than original file name gathered from version info
Source: faktura.exe, 00000000.00000002.686595654.00000000021E0000.00000002.00000001.sdmp Binary or memory string: OriginalFilenameuser32j% vs faktura.exe
Source: faktura.exe, 00000000.00000002.687182912.0000000002A80000.00000004.00000001.sdmp Binary or memory string: OriginalFilenamelnoverfrslers.exeFE2XPixarPixar vs faktura.exe
Source: faktura.exe, 00000000.00000000.638569648.0000000000415000.00000002.00020000.sdmp Binary or memory string: OriginalFilenamelnoverfrslers.exe vs faktura.exe
Source: faktura.exe Binary or memory string: OriginalFilenamelnoverfrslers.exe vs faktura.exe
Tries to load missing DLLs
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Section loaded: sfc.dll Jump to behavior
Uses 32bit PE files
Source: faktura.exe Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
Source: classification engine Classification label: mal100.rans.troj.spyw.evad.winEXE@6/1@2/2
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1DB2AF3E AdjustTokenPrivileges, 3_2_1DB2AF3E
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1DB2AF07 AdjustTokenPrivileges, 3_2_1DB2AF07
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Mutant created: \Sessions\1\BaseNamedObjects\Global\.net clr networking
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:3476:120:WilError_01
Source: faktura.exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\faktura.exe Section loaded: C:\Windows\SysWOW64\msvbvm60.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Section loaded: C:\Windows\assembly\NativeImages_v2.0.50727_32\mscorlib\9603718106bd57ecfbb18fefd769cab4\mscorlib.ni.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sorttbls.nlp Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sortkey.nlp Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Users\user\Desktop\faktura.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: faktura.exe Virustotal: Detection: 32%
Source: unknown Process created: C:\Users\user\Desktop\faktura.exe 'C:\Users\user\Desktop\faktura.exe'
Source: C:\Users\user\Desktop\faktura.exe Process created: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe 'C:\Users\user\Desktop\faktura.exe'
Source: C:\Users\user\Desktop\faktura.exe Process created: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe 'C:\Users\user\Desktop\faktura.exe'
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\faktura.exe Process created: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe 'C:\Users\user\Desktop\faktura.exe' Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe Process created: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe 'C:\Users\user\Desktop\faktura.exe' Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{72C24DD5-D70A-438B-8A42-98424B88AFB8}\InProcServer32 Jump to behavior
Source: Window Recorder Window detected: More than 3 window changes detected
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File opened: C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorrc.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9445_none_d08c58b4442ba54f\MSVCR80.dll Jump to behavior
Source: Binary string: mscorrc.pdb source: RegAsm.exe, 00000003.00000002.907361254.000000001CC70000.00000002.00000001.sdmp

Data Obfuscation:

barindex
Yara detected GuLoader
Source: Yara match File source: 00000003.00000002.904555277.0000000000FA1000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 6148, type: MEMORY
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_004070F5 push esi; retf 0_2_004070FA
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_0040894B push esp; retf 0_2_0040894C
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_00404DC1 push es; retf 0_2_00404DC4
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_004053BC pushfd ; ret 0_2_004053C4
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_022E005D pushad ; retf 0_2_022E005E
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_022E016E push ss; ret 0_2_022E016F
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_022E2542 push ecx; ret 0_2_022E254C
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_022E1B5D push cs; retf 0_2_022E1B61
Source: C:\Users\user\Desktop\faktura.exe Code function: 0_2_022E25F9 push ss; ret 0_2_022E25FA
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_20510D7E push cs; iretd 3_2_20510DDD

Hooking and other Techniques for Hiding and Protection:

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Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Registry key monitored for changes: HKEY_CURRENT_USER_Classes Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\conhost.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

barindex
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA1E61 InternetOpenA,InternetOpenUrlA, 3_2_00FA1E61
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA1872 LoadLibraryA, 3_2_00FA1872
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA3135 3_2_00FA3135
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E19DF second address: 00000000022E19DF instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E1AB4 second address: 00000000022E1AB4 instructions: 0x00000000 rdtsc 0x00000002 xor eax, eax 0x00000004 inc eax 0x00000005 cpuid 0x00000007 popad 0x00000008 call 00007FC25CB35468h 0x0000000d lfence 0x00000010 mov edx, dword ptr [7FFE0014h] 0x00000016 lfence 0x00000019 ret 0x0000001a sub edx, esi 0x0000001c ret 0x0000001d cmp edx, eax 0x0000001f pop ecx 0x00000020 add edi, edx 0x00000022 dec ecx 0x00000023 cmp ecx, 00000000h 0x00000026 jne 00007FC25CB35451h 0x00000028 push ecx 0x00000029 call 00007FC25CB3547Bh 0x0000002e call 00007FC25CB35478h 0x00000033 lfence 0x00000036 mov edx, dword ptr [7FFE0014h] 0x0000003c lfence 0x0000003f ret 0x00000040 mov esi, edx 0x00000042 pushad 0x00000043 rdtsc
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E323E second address: 00000000022E323E instructions: 0x00000000 rdtsc 0x00000002 mov eax, 00000001h 0x00000007 cpuid 0x00000009 popad 0x0000000a inc ecx 0x0000000b inc ebx 0x0000000c test ax, bx 0x0000000f cmp dword ptr [ebx], 9090C350h 0x00000015 jne 00007FC25CB3547Ah 0x00000017 cmp edx, dword ptr [ebx] 0x00000019 jne 00007FC25CB3546Fh 0x0000001b cmp byte ptr [ebx], FFFFFFE8h 0x0000001e jne 00007FC25CB35495h 0x00000020 cmp byte ptr [ebx], FFFFFFB8h 0x00000023 jne 00007FC25CB35484h 0x00000025 cmp ecx, 00002000h 0x0000002b jne 00007FC25CB353BAh 0x00000031 pushad 0x00000032 rdtsc
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E329B second address: 00000000022E329B instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E2061 second address: 00000000022E2061 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E20E2 second address: 00000000022E20E2 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E215F second address: 00000000022E215F instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E21EA second address: 00000000022E21EA instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E2269 second address: 00000000022E2269 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E17DC second address: 00000000022E17DC instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E1801 second address: 00000000022E1801 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E1853 second address: 00000000022E1853 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E18F4 second address: 00000000022E18F4 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E1944 second address: 00000000022E1944 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E174B second address: 00000000022E174B instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E178A second address: 00000000022E2BE5 instructions: 0x00000000 rdtsc 0x00000002 mov eax, 00000001h 0x00000007 cpuid 0x00000009 popad 0x0000000a mov eax, 00000539h 0x0000000f pushad 0x00000010 mov di, B712h 0x00000014 cmp di, B712h 0x00000019 jne 00007FC25C88A09Bh 0x0000001f popad 0x00000020 ret 0x00000021 cmp eax, 00000539h 0x00000026 je 00007FC25C888C66h 0x00000028 call 00007FC25C88998Ah 0x0000002d test ah, dh 0x0000002f test ch, dh 0x00000031 push 00000000h 0x00000033 push 00000000h 0x00000035 cmp ah, ah 0x00000037 push dword ptr [ebp+24h] 0x0000003a push 00000000h 0x0000003c push 00000000h 0x0000003e push 00000000h 0x00000040 cmp ecx, ecx 0x00000042 push 00000000h 0x00000044 call 00007FC25C88A9FCh 0x00000049 test ah, bh 0x0000004b test cx, 8861h 0x00000050 mov ecx, dword ptr [ebp+1Ch] 0x00000053 mov edx, 321C9581h 0x00000058 call 00007FC25C8886FAh 0x0000005d push esi 0x0000005e push edx 0x0000005f push ecx 0x00000060 test edx, 8DD1A303h 0x00000066 cmp eax, 00000539h 0x0000006b jne 00007FC25C888CC8h 0x0000006d test dh, FFFFFFEBh 0x00000070 pushad 0x00000071 lfence 0x00000074 rdtsc
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe RDTSC instruction interceptor: First address: 0000000000FA1F71 second address: 0000000000FA1F71 instructions:
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe RDTSC instruction interceptor: First address: 0000000000FA1FE8 second address: 0000000000FA1FE8 instructions:
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Function Chain: systemQueried,systemQueried,threadCreated,threadResumed,threadDelayed,threadDelayed,threadDelayed,systemQueried,threadDelayed,systemQueried,threadDelayed,systemQueried,threadDelayed,threadDelayed,threadDelayed,systemQueried,threadDelayed,threadDelayed,threadDelayed,systemQueried,threadDelayed,threadDelayed,memAlloc,threadDelayed,threadDelayed
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_BaseBoard
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_NetworkAdapterConfiguration
Tries to detect Any.run
Source: C:\Users\user\Desktop\faktura.exe File opened: C:\Program Files\Qemu-ga\qemu-ga.exe Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe File opened: C:\Program Files\qga\qga.exe Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File opened: C:\Program Files\Qemu-ga\qemu-ga.exe Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File opened: C:\Program Files\qga\qga.exe Jump to behavior
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: RegAsm.exe, 00000003.00000002.904555277.0000000000FA1000.00000040.00000001.sdmp Binary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXEF9
Source: RegAsm.exe Binary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXE
Tries to detect virtualization through RDTSC time measurements
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E19DF second address: 00000000022E19DF instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E1AB4 second address: 00000000022E1AB4 instructions: 0x00000000 rdtsc 0x00000002 xor eax, eax 0x00000004 inc eax 0x00000005 cpuid 0x00000007 popad 0x00000008 call 00007FC25CB35468h 0x0000000d lfence 0x00000010 mov edx, dword ptr [7FFE0014h] 0x00000016 lfence 0x00000019 ret 0x0000001a sub edx, esi 0x0000001c ret 0x0000001d cmp edx, eax 0x0000001f pop ecx 0x00000020 add edi, edx 0x00000022 dec ecx 0x00000023 cmp ecx, 00000000h 0x00000026 jne 00007FC25CB35451h 0x00000028 push ecx 0x00000029 call 00007FC25CB3547Bh 0x0000002e call 00007FC25CB35478h 0x00000033 lfence 0x00000036 mov edx, dword ptr [7FFE0014h] 0x0000003c lfence 0x0000003f ret 0x00000040 mov esi, edx 0x00000042 pushad 0x00000043 rdtsc
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E1B6D second address: 00000000022E1B6D instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a ret 0x0000000b mov esi, edx 0x0000000d pushad 0x0000000e xor eax, eax 0x00000010 inc eax 0x00000011 cpuid 0x00000013 bt ecx, 1Fh 0x00000017 jc 00007FC25C88A05Ch 0x0000001d popad 0x0000001e call 00007FC25C888C89h 0x00000023 lfence 0x00000026 rdtsc
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E323E second address: 00000000022E323E instructions: 0x00000000 rdtsc 0x00000002 mov eax, 00000001h 0x00000007 cpuid 0x00000009 popad 0x0000000a inc ecx 0x0000000b inc ebx 0x0000000c test ax, bx 0x0000000f cmp dword ptr [ebx], 9090C350h 0x00000015 jne 00007FC25CB3547Ah 0x00000017 cmp edx, dword ptr [ebx] 0x00000019 jne 00007FC25CB3546Fh 0x0000001b cmp byte ptr [ebx], FFFFFFE8h 0x0000001e jne 00007FC25CB35495h 0x00000020 cmp byte ptr [ebx], FFFFFFB8h 0x00000023 jne 00007FC25CB35484h 0x00000025 cmp ecx, 00002000h 0x0000002b jne 00007FC25CB353BAh 0x00000031 pushad 0x00000032 rdtsc
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E329B second address: 00000000022E329B instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E2D55 second address: 00000000022E2D55 instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a popad 0x0000000b cmp ecx, 18h 0x0000000e jne 00007FC25CB35437h 0x00000010 test ch, ah 0x00000012 fnop 0x00000014 push dword ptr [eax+ecx] 0x00000017 pop dword ptr [ebx+ecx] 0x0000001a inc ecx 0x0000001b inc ecx 0x0000001c inc ecx 0x0000001d inc ecx 0x0000001e test edx, 39F97FE6h 0x00000024 test dh, FFFFFFE8h 0x00000027 pushad 0x00000028 lfence 0x0000002b rdtsc
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E2061 second address: 00000000022E2061 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E20E2 second address: 00000000022E20E2 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E215F second address: 00000000022E215F instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E21EA second address: 00000000022E21EA instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E2253 second address: 00000000022E2269 instructions: 0x00000000 rdtsc 0x00000002 popad 0x00000003 mov dword ptr [ebp+00000120h], eax 0x00000009 test ecx, ecx 0x0000000b test ah, ah 0x0000000d mov ecx, dword ptr [ebp+18h] 0x00000010 mov edx, 71019921h 0x00000015 pushad 0x00000016 rdtsc
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E2269 second address: 00000000022E2269 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E17DC second address: 00000000022E17DC instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E1801 second address: 00000000022E1801 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E1853 second address: 00000000022E1853 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E18F4 second address: 00000000022E18F4 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E1944 second address: 00000000022E1944 instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E174B second address: 00000000022E174B instructions:
Source: C:\Users\user\Desktop\faktura.exe RDTSC instruction interceptor: First address: 00000000022E178A second address: 00000000022E2BE5 instructions: 0x00000000 rdtsc 0x00000002 mov eax, 00000001h 0x00000007 cpuid 0x00000009 popad 0x0000000a mov eax, 00000539h 0x0000000f pushad 0x00000010 mov di, B712h 0x00000014 cmp di, B712h 0x00000019 jne 00007FC25C88A09Bh 0x0000001f popad 0x00000020 ret 0x00000021 cmp eax, 00000539h 0x00000026 je 00007FC25C888C66h 0x00000028 call 00007FC25C88998Ah 0x0000002d test ah, dh 0x0000002f test ch, dh 0x00000031 push 00000000h 0x00000033 push 00000000h 0x00000035 cmp ah, ah 0x00000037 push dword ptr [ebp+24h] 0x0000003a push 00000000h 0x0000003c push 00000000h 0x0000003e push 00000000h 0x00000040 cmp ecx, ecx 0x00000042 push 00000000h 0x00000044 call 00007FC25C88A9FCh 0x00000049 test ah, bh 0x0000004b test cx, 8861h 0x00000050 mov ecx, dword ptr [ebp+1Ch] 0x00000053 mov edx, 321C9581h 0x00000058 call 00007FC25C8886FAh 0x0000005d push esi 0x0000005e push edx 0x0000005f push ecx 0x00000060 test edx, 8DD1A303h 0x00000066 cmp eax, 00000539h 0x0000006b jne 00007FC25C888CC8h 0x0000006d test dh, FFFFFFEBh 0x00000070 pushad 0x00000071 lfence 0x00000074 rdtsc
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe RDTSC instruction interceptor: First address: 0000000000FA1B6D second address: 0000000000FA1B6D instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a ret 0x0000000b mov esi, edx 0x0000000d pushad 0x0000000e xor eax, eax 0x00000010 inc eax 0x00000011 cpuid 0x00000013 bt ecx, 1Fh 0x00000017 jc 00007FC25CB3684Ch 0x0000001d popad 0x0000001e call 00007FC25CB35479h 0x00000023 lfence 0x00000026 rdtsc
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe RDTSC instruction interceptor: First address: 0000000000FA1F5C second address: 0000000000FA1F71 instructions: 0x00000000 rdtsc 0x00000002 popad 0x00000003 push eax 0x00000004 test ecx, ecx 0x00000006 push 00010000h 0x0000000b test ah, ah 0x0000000d push ebx 0x0000000e push dword ptr [ebp+000000ECh] 0x00000014 pushad 0x00000015 rdtsc
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe RDTSC instruction interceptor: First address: 0000000000FA1F71 second address: 0000000000FA1F71 instructions:
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe RDTSC instruction interceptor: First address: 0000000000FA1FE8 second address: 0000000000FA1FE8 instructions:
Contains functionality for execution timing, often used to detect debuggers
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA2BCE rdtsc 3_2_00FA2BCE
Contains long sleeps (>= 3 min)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.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\v2.0.50727\RegAsm.exe Window / User API: threadDelayed 584 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe TID: 6860 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe TID: 6860 Thread sleep time: -17520000s >= -30000s Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe TID: 6860 Thread sleep time: -30000s >= -30000s Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe TID: 6860 Thread sleep time: -30000s >= -30000s Jump to behavior
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Last function: Thread delayed
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Thread delayed: delay time: 30000 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Thread delayed: delay time: 30000 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Thread delayed: delay time: 30000 Jump to behavior
Source: RegAsm.exe, 00000003.00000002.904555277.0000000000FA1000.00000040.00000001.sdmp Binary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exef9
Source: RegAsm.exe, 00000003.00000002.909289301.0000000020290000.00000002.00000001.sdmp Binary or memory string: A Virtual Machine could not be started because Hyper-V is not installed.
Source: RegAsm.exe, 00000003.00000002.909289301.0000000020290000.00000002.00000001.sdmp Binary or memory string: A communication protocol error has occurred between the Hyper-V Host and Guest Compute Service.
Source: RegAsm.exe Binary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe
Source: RegAsm.exe, 00000003.00000002.909289301.0000000020290000.00000002.00000001.sdmp Binary or memory string: The communication protocol version between the Hyper-V Host and Guest Compute Services is not supported.
Source: RegAsm.exe, 00000003.00000002.909289301.0000000020290000.00000002.00000001.sdmp Binary or memory string: An unknown internal message was received by the Hyper-V Compute Service.
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process information queried: ProcessInformation Jump to behavior

Anti Debugging:

barindex
Hides threads from debuggers
Source: C:\Users\user\Desktop\faktura.exe Thread information set: HideFromDebugger Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Thread information set: HideFromDebugger Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Thread information set: HideFromDebugger Jump to behavior
Checks if the current process is being debugged
Source: C:\Users\user\Desktop\faktura.exe Process queried: DebugPort Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process queried: DebugPort Jump to behavior
Contains functionality for execution timing, often used to detect debuggers
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA2BCE rdtsc 3_2_00FA2BCE
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_1FEEF950 LdrInitializeThunk, 3_2_1FEEF950
Contains functionality to read the PEB
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA19C4 mov eax, dword ptr fs:[00000030h] 3_2_00FA19C4
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA2D79 mov eax, dword ptr fs:[00000030h] 3_2_00FA2D79
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA2B62 mov eax, dword ptr fs:[00000030h] 3_2_00FA2B62
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA3135 mov eax, dword ptr fs:[00000030h] 3_2_00FA3135
Enables debug privileges
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Process token adjusted: Debug Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

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Writes to foreign memory regions
Source: C:\Users\user\Desktop\faktura.exe Memory written: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe base: FA0000 Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\faktura.exe Process created: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe 'C:\Users\user\Desktop\faktura.exe' Jump to behavior
Source: C:\Users\user\Desktop\faktura.exe Process created: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe 'C:\Users\user\Desktop\faktura.exe' Jump to behavior
Source: RegAsm.exe, 00000003.00000002.904927890.0000000001760000.00000002.00000001.sdmp Binary or memory string: Program Manager
Source: RegAsm.exe, 00000003.00000002.904927890.0000000001760000.00000002.00000001.sdmp Binary or memory string: Shell_TrayWnd
Source: RegAsm.exe, 00000003.00000002.904927890.0000000001760000.00000002.00000001.sdmp Binary or memory string: Progman
Source: RegAsm.exe, 00000003.00000002.904927890.0000000001760000.00000002.00000001.sdmp Binary or memory string: Progmanlock

Language, Device and Operating System Detection:

barindex
Contains functionality to query CPU information (cpuid)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Code function: 3_2_00FA18E7 cpuid 3_2_00FA18E7
Queries the volume information (name, serial number etc) of a device
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Queries volume information: C:\Windows\assembly\GAC_32\CustomMarshalers\2.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Queries volume information: C:\Windows\assembly\GAC_32\CustomMarshalers\2.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information:

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Yara detected AgentTesla
Source: Yara match File source: 00000003.00000002.908261249.000000001DCC1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 6148, type: MEMORY
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Key opened: HKEY_CURRENT_USER\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions Jump to behavior
Tries to harvest and steal browser information (history, passwords, etc)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\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\v2.0.50727\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\Mozilla\Firefox\profiles.ini Jump to behavior
Tries to harvest and steal ftp login credentials
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\FileZilla\recentservers.xml Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\SmartFTP\Client 2.0\Favorites\Quick Connect\ Jump to behavior
Tries to steal Mail credentials (via file access)
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Key opened: HKEY_CURRENT_USER\Software\IncrediMail\Identities Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Yara detected Credential Stealer
Source: Yara match File source: 00000003.00000002.908261249.000000001DCC1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 6148, type: MEMORY

Remote Access Functionality:

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Yara detected AgentTesla
Source: Yara match File source: 00000003.00000002.908261249.000000001DCC1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 6148, type: MEMORY
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: 385392 Sample: faktura.exe Startdate: 12/04/2021 Architecture: WINDOWS Score: 100 24 Potential malicious icon found 2->24 26 Found malware configuration 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 5 other signatures 2->30 7 faktura.exe 2->7         started        process3 signatures4 32 Writes to foreign memory regions 7->32 34 Detected RDTSC dummy instruction sequence (likely for instruction hammering) 7->34 36 Tries to detect Any.run 7->36 38 2 other signatures 7->38 10 RegAsm.exe 11 7->10         started        14 RegAsm.exe 7->14         started        process5 dnsIp6 18 felgui.pt 185.31.158.175, 49773, 587 ONILisbonPortugalPT Portugal 10->18 20 mail.felgui.pt 10->20 22 2 other IPs or domains 10->22 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 10->40 42 Tries to steal Mail credentials (via file access) 10->42 44 Tries to harvest and steal ftp login credentials 10->44 52 3 other signatures 10->52 16 conhost.exe 10->16         started        46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->46 48 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->48 50 Contains functionality to detect hardware virtualization (CPUID execution measurement) 14->50 54 3 other signatures 14->54 signatures7 process8
  • 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
216.58.215.225
 googlehosted.l.googleusercontent.com United States
15169 GOOGLEUS false
185.31.158.175
 felgui.pt Portugal
9186 ONILisbonPortugalPT true

Contacted Domains

Name IP Active
felgui.pt 185.31.158.175 true
googlehosted.l.googleusercontent.com 216.58.215.225 true
mail.felgui.pt unknown unknown
doc-0o-7c-docs.googleusercontent.com unknown unknown

Contacted URLs

Name Malicious Antivirus Detection Reputation
https://kij0jMdbT7S0DxfQ.net true
  • Avira URL Cloud: safe
 unknown