Analysis
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max time kernel
25s -
max time network
123s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
25-01-2021 16:04
General
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Target
file.exe
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Size
1.2MB
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MD5
fd15f7e050f40bceac74087720bef9c1
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SHA1
88bc4eff56e875ef5177ff7cc4841cca6360f0fc
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SHA256
43ef60cadb56aed45b964b3f85827c9557b49f400a972f1cf9e16566e5dcf2d7
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SHA512
6aae6d25e65eec6f99afed7cc05d478ccf370cfc7d284fd1ce49ef735d115fdba1d9acb36bbed09e8b5523a00b8f1fdda217e17669ade1d8f03085ece42e5394
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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Executes dropped EXE 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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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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Suspicious behavior: EnumeratesProcesses 9 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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memory/1804-14-0x0000000000463E1E-mapping.dmp
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memory/1804-22-0x0000000004860000-0x0000000004861000-memory.dmpFilesize
4KB
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memory/1804-20-0x0000000000090000-0x0000000000092000-memory.dmpFilesize
8KB
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memory/1804-19-0x0000000074320000-0x0000000074A0E000-memory.dmpFilesize
6.9MB
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memory/1804-17-0x0000000000090000-0x00000000000F8000-memory.dmpFilesize
416KB
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memory/1804-16-0x0000000000090000-0x00000000000F8000-memory.dmpFilesize
416KB
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memory/1888-8-0x0000000000540000-0x0000000000541000-memory.dmpFilesize
4KB
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memory/1888-12-0x0000000004E11000-0x0000000004E12000-memory.dmpFilesize
4KB
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memory/1888-10-0x00000000005E0000-0x00000000005E1000-memory.dmpFilesize
4KB
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memory/1888-9-0x0000000000580000-0x000000000058B000-memory.dmpFilesize
44KB
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memory/1888-2-0x0000000074320000-0x0000000074A0E000-memory.dmpFilesize
6.9MB
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memory/1888-7-0x0000000000460000-0x000000000047E000-memory.dmpFilesize
120KB
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memory/1888-5-0x0000000004E10000-0x0000000004E11000-memory.dmpFilesize
4KB
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memory/1888-3-0x0000000000C10000-0x0000000000C11000-memory.dmpFilesize
4KB