Analysis
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max time kernel
122s -
max time network
122s -
platform
windows10_x64 -
resource
win10-en-20211104 -
submitted
03-12-2021 15:16
General
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Target
DOCUMENT No. 4 & 5.exe
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Size
543KB
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MD5
83600f4b738720bfdd0f0a65d3398a79
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SHA1
ac1e74674eee3c0249c9bedfe041c90bd83327f5
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SHA256
c5f0b11cba973a4b098ef858ae755ef0e6353296ae998503eafb3a67fa21d1c0
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SHA512
35e767959b6deb51323414f1875aac16d1b68d79c87eb834fd0bfd6ca4d5165d35dbc7b6dab2b57cff1d70fde0fd6d6fb9878983b95cd21961378b2a5511502e
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.scahe.co.in - Port:
587 - Username:
[email protected] - Password:
scaheavy@12345
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
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Drops file in Drivers directory 1 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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Suspicious use of SetThreadContext 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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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 10 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\DOCUMENT No. 4 & 5.exe"C:\Users\Admin\AppData\Local\Temp\DOCUMENT No. 4 & 5.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\DOCUMENT No. 4 & 5.exe"C:\Users\Admin\AppData\Local\Temp\DOCUMENT No. 4 & 5.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- 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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\Users\Admin\AppData\Local\Temp\nsmA23D.tmp\gdhcrgo.dllMD5
a0d89d8edb86db24831ea85b7a3c5dbb
SHA1359fe728bef83a0ea27458ad4411c2e147a1069f
SHA2568c6b8c843d3a4959c502d55be98e60729480401e20a7515e779fbf78edfc79a7
SHA5121de3200778c3606c4ad15ae1f1137842e0aa6f268eac24cb3c7821e9f4cccddbf08a2157430cf8a64a8567c8c16a01b5a24ea4b66d8e6e289e5531a121e987ec
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memory/4344-119-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/4344-120-0x000000000040188B-mapping.dmp
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memory/4344-121-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/4344-122-0x00000000047B0000-0x00000000047E7000-memory.dmpFilesize
220KB
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memory/4344-124-0x0000000004910000-0x0000000004911000-memory.dmpFilesize
4KB
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memory/4344-125-0x0000000004F40000-0x0000000004F41000-memory.dmpFilesize
4KB
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memory/4344-127-0x0000000004902000-0x0000000004903000-memory.dmpFilesize
4KB
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memory/4344-126-0x0000000004900000-0x0000000004901000-memory.dmpFilesize
4KB
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memory/4344-128-0x0000000004903000-0x0000000004904000-memory.dmpFilesize
4KB
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memory/4344-129-0x0000000004904000-0x0000000004905000-memory.dmpFilesize
4KB
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memory/4344-130-0x00000000057B0000-0x00000000057B1000-memory.dmpFilesize
4KB
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memory/4344-131-0x00000000057E0000-0x00000000057E1000-memory.dmpFilesize
4KB
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memory/4344-132-0x0000000005B90000-0x0000000005B91000-memory.dmpFilesize
4KB
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memory/4344-133-0x00000000008B0000-0x00000000008B1000-memory.dmpFilesize
4KB