Analysis
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max time kernel
119s -
max time network
123s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
16-12-2021 17:16
General
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Target
tmp/41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exe
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Size
350KB
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MD5
033304a9a935c4d0d64769245abfe3ae
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SHA1
ebe539aeb57b78a3ad8085fe61dcc5ce3bfb6fd9
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SHA256
6500927c19e228cc116484a103ba594fdeadccf06159332ead8cc9b3d9da83db
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SHA512
f9da9c01941b5694c46d9b8f1fb4d4710a025409b672eb62ca913979f0aa26fc1ac8eb922388c4c29c8f7405ad268a871221cd38b0494c18936612756af021c0
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Modifies system executable filetype association 2 TTPs 1 IoCs
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Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
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AgentTesla Payload 4 IoCs
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Executes dropped EXE 2 IoCs
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Loads dropped DLL 1 IoCs
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Drops file in Program Files directory 10 IoCs
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Drops file in Windows directory 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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NSIS installer 6 IoCs
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Modifies registry class 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 13 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp\41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exe"C:\Users\Admin\AppData\Local\Temp\tmp\41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exe"1⤵
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\3582-490\41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\3582-490\41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\3582-490\41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exeMD5
01d37a2dc0153678b509ed07c2891014
SHA178a1710974bbec3de74f27c0f0574b6bb2c43e65
SHA256284a7b827997880f862d34ae032872879702666ede431949cd345bc13544772c
SHA51264a893554834d531cf9ee649ea9978c4b814bf0a6ef2e04eb01a9248848299acb6d712340aa0abbaddc18fd16c72e2a4da257b202cef7a4fd82ba99fc9835f9e
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C:\Users\Admin\AppData\Local\Temp\3582-490\41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exeMD5
01d37a2dc0153678b509ed07c2891014
SHA178a1710974bbec3de74f27c0f0574b6bb2c43e65
SHA256284a7b827997880f862d34ae032872879702666ede431949cd345bc13544772c
SHA51264a893554834d531cf9ee649ea9978c4b814bf0a6ef2e04eb01a9248848299acb6d712340aa0abbaddc18fd16c72e2a4da257b202cef7a4fd82ba99fc9835f9e
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C:\Users\Admin\AppData\Local\Temp\3582-490\41c6f9cd-7d7d-4161-80c0-a3b961a113ba_vbc.exeMD5
01d37a2dc0153678b509ed07c2891014
SHA178a1710974bbec3de74f27c0f0574b6bb2c43e65
SHA256284a7b827997880f862d34ae032872879702666ede431949cd345bc13544772c
SHA51264a893554834d531cf9ee649ea9978c4b814bf0a6ef2e04eb01a9248848299acb6d712340aa0abbaddc18fd16c72e2a4da257b202cef7a4fd82ba99fc9835f9e
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\Users\Admin\AppData\Local\Temp\nseB4CB.tmp\cxzqpbmkny.dllMD5
e339d7fbe34086431a548b4ec483795f
SHA179b1d34dd81828e2884dcaeeff462cf3228878c9
SHA25621a03f3f38f200bdd4bc3906a25b5d344aecb15c3842528c195b381b50baecee
SHA51230bcc40d6decf58c66d8256f27f16cc497d118595dc7f891e509fbae66386767e67e71ae04fe2ad7dcd380f82dfc1e21c4fe337c08724ca7f9e0028dc4d5a201
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memory/3052-115-0x0000000000000000-mapping.dmp
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memory/4068-123-0x00000000022B0000-0x00000000022E7000-memory.dmpFilesize
220KB
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memory/4068-127-0x0000000002310000-0x0000000002311000-memory.dmpFilesize
4KB
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memory/4068-122-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/4068-119-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/4068-125-0x0000000004860000-0x0000000004861000-memory.dmpFilesize
4KB
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memory/4068-126-0x0000000004EF0000-0x0000000004EF1000-memory.dmpFilesize
4KB
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memory/4068-128-0x0000000002312000-0x0000000002313000-memory.dmpFilesize
4KB
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memory/4068-120-0x000000000040188B-mapping.dmp
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memory/4068-130-0x0000000002314000-0x0000000002315000-memory.dmpFilesize
4KB
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memory/4068-129-0x0000000002313000-0x0000000002314000-memory.dmpFilesize
4KB
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memory/4068-131-0x00000000057B0000-0x00000000057B1000-memory.dmpFilesize
4KB
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memory/4068-132-0x00000000057E0000-0x00000000057E1000-memory.dmpFilesize
4KB
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memory/4068-133-0x0000000005CA0000-0x0000000005CA1000-memory.dmpFilesize
4KB
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memory/4068-134-0x00000000008F0000-0x00000000008F1000-memory.dmpFilesize
4KB