Resubmissions
06-12-2021 10:42
211206-mrvzjadggm 1018-11-2021 09:01
211118-kyyynafbd7 718-11-2021 08:53
211118-ktap9scbam 7Analysis
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max time kernel
125s -
max time network
125s -
platform
windows10_x64 -
resource
win10-en-20211104 -
submitted
06-12-2021 10:42
General
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Target
2098765234567890987660.E.exe
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Size
759KB
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MD5
bbbf28c148eb325812183d91d8e8a239
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SHA1
ba7612abff608b6dd038acfb43a31741329e007c
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SHA256
caa0fa101c0ee313ae591239f18dcd8fc37cb235af7dfb2e9de350d7f448d34b
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SHA512
852c5aedfc4090559d50ea136aeb6270308766585acb49054f64c570af1011e26b295d681064cbe00d227b3d4dbfd0cc2a34d1113052eb5cc097dbde925978bc
Malware Config
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger Payload 3 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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Drops desktop.ini file(s) 2 IoCs
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext 1 IoCs
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Drops file in Windows directory 3 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 1 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\2098765234567890987660.E.exe"C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"2⤵
- Accesses Microsoft Outlook profiles
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\Temp\nsu90E7.tmp\gotnxdaktoc.dllMD5
48ec27c77c23413f4e11e531b775542f
SHA146fdd7b618bf1abea37a04a38f72664db65dba97
SHA256ff894568ef9ab2d4bffa5b9c4d67460c292d74e921090395cb4b4812c4146c9c
SHA5122f0a89c420bb89e4546313709e2ba735252f839f069cb8510101bff9875ecb85206e9e77993c890fb7495bb557b81a4d149ae9a61f50b3513211b3f5aa6e5e3d
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memory/488-119-0x0000000000400000-0x000000000048B000-memory.dmpFilesize
556KB
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memory/488-120-0x000000000040188B-mapping.dmp
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memory/488-122-0x0000000002220000-0x0000000002221000-memory.dmpFilesize
4KB
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memory/488-121-0x0000000000400000-0x000000000048B000-memory.dmpFilesize
556KB
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memory/488-124-0x0000000002222000-0x0000000002224000-memory.dmpFilesize
8KB
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memory/488-123-0x0000000002221000-0x0000000002222000-memory.dmpFilesize
4KB
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memory/488-125-0x0000000002227000-0x0000000002228000-memory.dmpFilesize
4KB
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memory/488-126-0x0000000002228000-0x0000000002229000-memory.dmpFilesize
4KB