Analysis Report JUST1F1.tar

Overview

General Information

Sample Name: JUST1F1.tar
Analysis ID: 338154
MD5: 68bfcb37e51bc06b0f9b776ad69c9575
SHA1: 11f8c44f9c1d466def73c75149a661aa2cf71dfd
SHA256: d23f969ae26972088e1ec2c404edfb95add9b3a67be616fedd1ee0fef7cba287

Most interesting Screenshot:

Detection

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

Signatures

Found malware configuration
Yara detected AgentTesla
Yara detected AntiVM_3
.NET source code contains very large array initializations
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 sandboxes and other dynamic analysis tools (process name or module or function)
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)
Antivirus or Machine Learning detection for unpacked file
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains long sleeps (>= 3 min)
Creates a DirectInput object (often for capturing keystrokes)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Drops PE files
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
IP address 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)
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 SMTP (mail sending)
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer

Classification

AV Detection:

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Found malware configuration
Source: JUST1F1.exe.6516.6.memstr Malware Configuration Extractor: Agenttesla {"Username: ": "uhV8VNpzP", "URL: ": "http://RmfrFmh6Ec0Y1.com", "To: ": "", "ByHost: ": "smtp.1and1.es:587", "Password: ": "Cxvu3Va", "From: ": ""}
Machine Learning detection for dropped file
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Joe Sandbox ML: detected
Antivirus or Machine Learning detection for unpacked file
Source: 6.2.JUST1F1.exe.400000.0.unpack Avira: Label: TR/Spy.Gen8
Source: C:\Windows\SysWOW64\unarchiver.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: JUST1F1.exe, 00000005.00000002.676091893.0000000005710000.00000002.00000001.sdmp, JUST1F1.exe, 00000006.00000002.989933486.0000000001500000.00000002.00000001.sdmp

Software Vulnerabilities:

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Found inlined nop instructions (likely shell or obfuscated code)
Source: C:\Windows\SysWOW64\unarchiver.exe Code function: 4x nop then jmp 0181097Fh 0_2_018102A8
Source: C:\Windows\SysWOW64\unarchiver.exe Code function: 4x nop then jmp 0181097Eh 0_2_018102A8
Source: C:\Windows\SysWOW64\unarchiver.exe Code function: 4x nop then jmp 0181097Eh 0_2_01810014
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h 5_2_02FAD060
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h 5_2_02FAD051

Networking:

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C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: http://RmfrFmh6Ec0Y1.com
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.4:49774 -> 212.227.15.142:587
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 212.227.15.142 212.227.15.142
Uses SMTP (mail sending)
Source: global traffic TCP traffic: 192.168.2.4:49774 -> 212.227.15.142:587
Source: unknown DNS traffic detected: queries for: smtp.1and1.es
Source: JUST1F1.exe, 00000006.00000002.990481761.0000000003331000.00000004.00000001.sdmp String found in binary or memory: http://127.0.0.1:HTTP/1.1
Source: JUST1F1.exe, 00000006.00000002.990481761.0000000003331000.00000004.00000001.sdmp String found in binary or memory: http://DynDns.comDynDNS
Source: JUST1F1.exe, 00000006.00000002.990481761.0000000003331000.00000004.00000001.sdmp String found in binary or memory: http://RmfrFmh6Ec0Y1.com
Source: JUST1F1.exe, 00000006.00000002.990481761.0000000003331000.00000004.00000001.sdmp String found in binary or memory: http://RmfrFmh6Ec0Y1.comLE
Source: JUST1F1.exe, 00000006.00000002.990692781.000000000345C000.00000004.00000001.sdmp String found in binary or memory: http://cacerts.geotrust.com/GeoTrustRSACA2018.crt0
Source: JUST1F1.exe, 00000006.00000002.990692781.000000000345C000.00000004.00000001.sdmp String found in binary or memory: http://cdp.geotrust.com/GeoTrustRSACA2018.crl0L
Source: JUST1F1.exe, 00000006.00000002.990692781.000000000345C000.00000004.00000001.sdmp String found in binary or memory: http://crl3.digicert.com/DigiCertGlobalRootCA.crl0=
Source: JUST1F1.exe, 00000006.00000002.990692781.000000000345C000.00000004.00000001.sdmp String found in binary or memory: http://ocsp.digicert.com0B
Source: JUST1F1.exe, 00000006.00000002.990481761.0000000003331000.00000004.00000001.sdmp String found in binary or memory: http://qphjuU.com
Source: JUST1F1.exe, 00000006.00000002.990692781.000000000345C000.00000004.00000001.sdmp String found in binary or memory: http://status.geotrust.com0=
Source: JUST1F1.exe, 00000006.00000002.990692781.000000000345C000.00000004.00000001.sdmp String found in binary or memory: https://www.digicert.com/CPS0
Source: JUST1F1.exe, 00000005.00000002.675383386.0000000004481000.00000004.00000001.sdmp, JUST1F1.exe, 00000006.00000002.989247161.0000000000402000.00000040.00000001.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
Source: JUST1F1.exe, 00000006.00000002.990481761.0000000003331000.00000004.00000001.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

Key, Mouse, Clipboard, Microphone and Screen Capturing:

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Creates a DirectInput object (often for capturing keystrokes)
Source: unarchiver.exe, 00000000.00000002.677946184.0000000001400000.00000004.00000020.sdmp Binary or memory string: <HOOK MODULE="DDRAW.DLL" FUNCTION="DirectDrawCreateEx"/>

System Summary:

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.NET source code contains very large array initializations
Source: 6.2.JUST1F1.exe.400000.0.unpack, u003cPrivateImplementationDetailsu003eu007b1A82A344u002d7631u002d4D01u002dB6C2u002d4D7CCC0A813Cu007d/u0032382CB16u002d27B1u002d493Au002dA31Cu002d9967CBD8A2C7.cs Large array initialization: .cctor: array initializer size 11927
Detected potential crypto function
Source: C:\Windows\SysWOW64\unarchiver.exe Code function: 0_2_018102A8 0_2_018102A8
Source: C:\Windows\SysWOW64\unarchiver.exe Code function: 0_2_01810299 0_2_01810299
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_013228A4 5_2_013228A4
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_01336484 5_2_01336484
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA1074 5_2_02FA1074
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FAA608 5_2_02FAA608
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA5BF2 5_2_02FA5BF2
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA17B0 5_2_02FA17B0
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA17A0 5_2_02FA17A0
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA1478 5_2_02FA1478
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA1468 5_2_02FA1468
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA4C50 5_2_02FA4C50
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA844B 5_2_02FA844B
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA4C40 5_2_02FA4C40
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_015D1D00 6_2_015D1D00
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_0543E138 6_2_0543E138
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_0543D9E0 6_2_0543D9E0
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_0543B7A0 6_2_0543B7A0
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_05438C40 6_2_05438C40
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_05430A98 6_2_05430A98
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_05438BE0 6_2_05438BE0
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_05DDE9C8 6_2_05DDE9C8
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_05DD91B0 6_2_05DD91B0
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_05DDCDA4 6_2_05DDCDA4
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_05DDE570 6_2_05DDE570
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_05DD3F11 6_2_05DD3F11
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_05DD5A10 6_2_05DD5A10
Sample file is different than original file name gathered from version info
Source: JUST1F1.tar Binary or memory string: OriginalFilenameUIPermissionClipboard.exe* vs JUST1F1.tar
Tries to load missing DLLs
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Section loaded: security.dll Jump to behavior
Source: 6.2.JUST1F1.exe.400000.0.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 6.2.JUST1F1.exe.400000.0.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: classification engine Classification label: mal100.troj.spyw.evad.winTAR@11/4@1/1
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe File created: C:\Users\user\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\JUST1F1.exe.log Jump to behavior
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:5576:120:WilError_01
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Mutant created: \Sessions\1\BaseNamedObjects\Global\.net clr networking
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:864:120:WilError_01
Source: C:\Windows\SysWOW64\unarchiver.exe File created: C:\Users\user\AppData\Local\Temp\4uifd5lh.jpu Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Section loaded: C:\Windows\assembly\NativeImages_v2.0.50727_32\mscorlib\9603718106bd57ecfbb18fefd769cab4\mscorlib.ni.dll Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sorttbls.nlp Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sortkey.nlp Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Section loaded: C:\Windows\assembly\NativeImages_v2.0.50727_32\mscorlib\9603718106bd57ecfbb18fefd769cab4\mscorlib.ni.dll Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sorttbls.nlp Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sortkey.nlp Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Section loaded: C:\Windows\assembly\NativeImages_v2.0.50727_32\mscorlib\9603718106bd57ecfbb18fefd769cab4\mscorlib.ni.dll Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sorttbls.nlp Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sortkey.nlp Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Windows\SysWOW64\unarchiver.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: unknown Process created: C:\Windows\SysWOW64\unarchiver.exe 'C:\Windows\SysWOW64\unarchiver.exe' 'C:\Users\user\Desktop\JUST1F1.tar'
Source: unknown Process created: C:\Windows\SysWOW64\7za.exe 'C:\Windows\System32\7za.exe' x -pinfected -y -o'C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg' 'C:\Users\user\Desktop\JUST1F1.tar'
Source: unknown Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: unknown Process created: C:\Windows\SysWOW64\cmd.exe 'cmd.exe' /C 'C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe'
Source: unknown Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: unknown Process created: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe
Source: unknown Process created: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe
Source: C:\Windows\SysWOW64\unarchiver.exe Process created: C:\Windows\SysWOW64\7za.exe 'C:\Windows\System32\7za.exe' x -pinfected -y -o'C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg' 'C:\Users\user\Desktop\JUST1F1.tar' Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process created: C:\Windows\SysWOW64\cmd.exe 'cmd.exe' /C 'C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe' Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process created: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{172BDDF8-CEEA-11D1-8B05-00600806D9B6}\InProcServer32 Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe File opened: C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorrc.dll Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.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: JUST1F1.exe, 00000005.00000002.676091893.0000000005710000.00000002.00000001.sdmp, JUST1F1.exe, 00000006.00000002.989933486.0000000001500000.00000002.00000001.sdmp

Data Obfuscation:

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Binary contains a suspicious time stamp
Source: initial sample Static PE information: 0xC023C5A7 [Wed Feb 24 20:03:51 2072 UTC]
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_0133840C push ecx; ret 5_2_01338439
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_02FA9E64 push 02FAh; iretd 5_2_02FA9E68
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_0543BB38 pushfd ; ret 6_2_0543BB39
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_0543CCF8 push esp; iretd 6_2_0543CCFD
Source: initial sample Static PE information: section name: .text entropy: 7.38023666029

Persistence and Installation Behavior:

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Drops PE files
Source: C:\Windows\SysWOW64\7za.exe File created: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Jump to dropped file

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:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Registry key monitored for changes: HKEY_CURRENT_USER_Classes Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

barindex
Yara detected AntiVM_3
Source: Yara match File source: 00000005.00000002.674621864.0000000003481000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: JUST1F1.exe PID: 6840, type: MEMORY
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Function Chain: memAlloc,systemQueried,systemQueried,threadCreated,threadResumed,threadDelayed,threadDelayed,threadDelayed,systemQueried,systemQueried,threadDelayed,threadDelayed,threadDelayed,threadDelayed,systemQueried,threadDelayed,threadDelayed,threadDelayed,systemQueried,memAlloc,threadDelayed,threadDelayed,threadDelayed,systemQueried,threadDelayed
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.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:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_NetworkAdapterConfiguration
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: JUST1F1.exe, 00000005.00000002.674621864.0000000003481000.00000004.00000001.sdmp Binary or memory string: SBIEDLL.DLL
Source: JUST1F1.exe, 00000005.00000002.674621864.0000000003481000.00000004.00000001.sdmp Binary or memory string: KERNEL32.DLL.WINE_GET_UNIX_FILE_NAME
Contains long sleeps (>= 3 min)
Source: C:\Windows\SysWOW64\unarchiver.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.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:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Window / User API: threadDelayed 877 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Windows\SysWOW64\unarchiver.exe TID: 5704 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe TID: 6364 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe TID: 6824 Thread sleep time: -50650s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe TID: 6388 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe TID: 7000 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe TID: 7000 Thread sleep count: 877 > 30 Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe TID: 7000 Thread sleep time: -26310000s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe TID: 7000 Thread sleep time: -30000s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe TID: 7000 Thread sleep time: -30000s >= -30000s Jump to behavior
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Last function: Thread delayed
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Last function: Thread delayed
Source: C:\Windows\SysWOW64\unarchiver.exe Code function: 0_2_013DB042 GetSystemInfo, 0_2_013DB042
Source: JUST1F1.exe, 00000006.00000002.989813861.0000000001248000.00000004.00000020.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dllSUY6
Source: JUST1F1.exe, 00000005.00000002.674621864.0000000003481000.00000004.00000001.sdmp Binary or memory string: InstallPathJC:\PROGRAM FILES\VMWARE\VMWARE TOOLS\
Source: JUST1F1.exe, 00000006.00000002.992224555.0000000005640000.00000002.00000001.sdmp Binary or memory string: A Virtual Machine could not be started because Hyper-V is not installed.
Source: JUST1F1.exe, 00000005.00000002.674621864.0000000003481000.00000004.00000001.sdmp Binary or memory string: vmware
Source: JUST1F1.exe, 00000006.00000002.992224555.0000000005640000.00000002.00000001.sdmp Binary or memory string: A communication protocol error has occurred between the Hyper-V Host and Guest Compute Service.
Source: JUST1F1.exe, 00000006.00000002.992224555.0000000005640000.00000002.00000001.sdmp Binary or memory string: The communication protocol version between the Hyper-V Host and Guest Compute Services is not supported.
Source: JUST1F1.exe, 00000005.00000002.674621864.0000000003481000.00000004.00000001.sdmp Binary or memory string: VMware SVGA II
Source: JUST1F1.exe, 00000006.00000002.989795749.0000000001225000.00000004.00000020.sdmp Binary or memory string: Hyper-V RAW"
Source: JUST1F1.exe, 00000005.00000002.674029983.000000000140B000.00000004.00000020.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll
Source: JUST1F1.exe, 00000005.00000002.674621864.0000000003481000.00000004.00000001.sdmp Binary or memory string: VMWAREDSOFTWARE\VMware, Inc.\VMware Tools
Source: JUST1F1.exe, 00000006.00000002.992224555.0000000005640000.00000002.00000001.sdmp Binary or memory string: An unknown internal message was received by the Hyper-V Compute Service.
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process information queried: ProcessInformation Jump to behavior

Anti Debugging:

barindex
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 6_2_0543BD08 LdrInitializeThunk, 6_2_0543BD08
Enables debug privileges
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process token adjusted: Debug Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

barindex
Injects a PE file into a foreign processes
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Memory written: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe base: 400000 value starts with: 4D5A Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Windows\SysWOW64\unarchiver.exe Process created: C:\Windows\SysWOW64\7za.exe 'C:\Windows\System32\7za.exe' x -pinfected -y -o'C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg' 'C:\Users\user\Desktop\JUST1F1.tar' Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe Process created: C:\Windows\SysWOW64\cmd.exe 'cmd.exe' /C 'C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe' Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Process created: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Jump to behavior
Source: JUST1F1.exe, 00000006.00000002.990020762.0000000001990000.00000002.00000001.sdmp Binary or memory string: Program Manager
Source: JUST1F1.exe, 00000006.00000002.990020762.0000000001990000.00000002.00000001.sdmp Binary or memory string: Shell_TrayWnd
Source: JUST1F1.exe, 00000006.00000002.990020762.0000000001990000.00000002.00000001.sdmp Binary or memory string: Progman
Source: JUST1F1.exe, 00000006.00000002.990020762.0000000001990000.00000002.00000001.sdmp Binary or memory string: Progmanlock

Language, Device and Operating System Detection:

barindex
Queries the volume information (name, serial number etc) of a device
Source: C:\Windows\SysWOW64\cmd.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Queries volume information: C:\Windows\assembly\GAC_32\CustomMarshalers\2.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Queries volume information: C:\Windows\assembly\GAC_32\CustomMarshalers\2.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.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: 00000006.00000002.990481761.0000000003331000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000005.00000002.675383386.0000000004481000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.989247161.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: JUST1F1.exe PID: 6840, type: MEMORY
Source: Yara match File source: Process Memory Space: JUST1F1.exe PID: 6516, type: MEMORY
Source: Yara match File source: 6.2.JUST1F1.exe.400000.0.unpack, type: UNPACKEDPE
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.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:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe File opened: C:\Users\user\AppData\Local\Google\Chrome\User Data\Default\Login Data Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.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:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe File opened: C:\Users\user\AppData\Roaming\FileZilla\recentservers.xml Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.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:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Key opened: HKEY_CURRENT_USER\Software\IncrediMail\Identities Jump to behavior
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.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: 00000006.00000002.990481761.0000000003331000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: JUST1F1.exe PID: 6516, type: MEMORY

Remote Access Functionality:

barindex
Yara detected AgentTesla
Source: Yara match File source: 00000006.00000002.990481761.0000000003331000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000005.00000002.675383386.0000000004481000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.989247161.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: JUST1F1.exe PID: 6840, type: MEMORY
Source: Yara match File source: Process Memory Space: JUST1F1.exe PID: 6516, type: MEMORY
Source: Yara match File source: 6.2.JUST1F1.exe.400000.0.unpack, type: UNPACKEDPE
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_03020A8E listen, 5_2_03020A8E
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_03020E9E bind, 5_2_03020E9E
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_03020A50 CreateMutexW,listen, 5_2_03020A50
Source: C:\Users\user\AppData\Local\Temp\jwzcmshk.kmg\JUST1F1.exe Code function: 5_2_03020E6B bind, 5_2_03020E6B
windows-stand
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  • Is Windows Process
  • Number of created Registry Values
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  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 338154 Sample: JUST1F1.tar Startdate: 11/01/2021 Architecture: WINDOWS Score: 100 30 Found malware configuration 2->30 32 Yara detected AgentTesla 2->32 34 Yara detected AntiVM_3 2->34 36 4 other signatures 2->36 8 unarchiver.exe 5 2->8         started        process3 process4 10 cmd.exe 1 8->10         started        12 7za.exe 2 8->12         started        file5 15 JUST1F1.exe 5 10->15         started        18 conhost.exe 10->18         started        26 C:\Users\user\AppData\Local\...\JUST1F1.exe, PE32 12->26 dropped 20 conhost.exe 12->20         started        process6 signatures7 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->46 48 Machine Learning detection for dropped file 15->48 50 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->50 52 2 other signatures 15->52 22 JUST1F1.exe 4 15->22         started        process8 dnsIp9 28 smtp.1and1.es 212.227.15.142, 49774, 587 ONEANDONE-ASBrauerstrasse48DE Germany 22->28 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->38 40 Tries to steal Mail credentials (via file access) 22->40 42 Tries to harvest and steal ftp login credentials 22->42 44 Tries to harvest and steal browser information (history, passwords, etc) 22->44 signatures10
  • 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
212.227.15.142
 unknown Germany
8560 ONEANDONE-ASBrauerstrasse48DE false

Contacted Domains

Name IP Active
smtp.1and1.es 212.227.15.142 true

Contacted URLs

Name Malicious Antivirus Detection Reputation
http://RmfrFmh6Ec0Y1.com true
  • Avira URL Cloud: safe
 unknown