Analysis
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max time kernel
163s -
max time network
167s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
27-09-2021 12:03
General
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Target
Payment Confirmation TT reference po.exe
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Size
807KB
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MD5
188d87dcba1c1d16b8779e05981c74c3
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SHA1
7503fee46ec790d3f76df6c14a0968504adfc886
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SHA256
402c8c6acc052173c55e48fe8228ae54db5b90be8ca3ab3d2050530b58c80b56
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SHA512
94066967f5bd3b9b331ffbb65bf3431421b7cebf95b940a70edbafef7def654c647b9fe04e4741d6a919b58b9ed4555e81c846e113b66461b38f0b299e17abdc
Malware Config
Extracted
Protocol: smtp- Host:
mail.thts.vn - Port:
25 - Username:
[email protected] - Password:
123luongngan1989
Extracted
matiex
Protocol: smtp- Host:
mail.thts.vn - Port:
25 - Username:
[email protected] - Password:
123luongngan1989
Signatures
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Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
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Matiex Main Payload 3 IoCs
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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 1 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious behavior: RenamesItself 1 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Payment Confirmation TT reference po.exe"C:\Users\Admin\AppData\Local\Temp\Payment Confirmation TT reference po.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Payment Confirmation TT reference po.exe"C:\Users\Admin\AppData\Local\Temp\Payment Confirmation TT reference po.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Payment Confirmation TT reference po.exe.logMD5
6521ad4e3d4f1d043ebbd5765b69e211
SHA14bf0fff43dc33bd2c91a470b25827432dff92d8b
SHA2565f8b317795f3079b968a3c2d0f722cba21ae79a1373b484781e3f95aed22afd6
SHA512389d1fee037e437e0f1c5e90772edf93be774f435061ba18543d34b7753239dd9ce828f6627ba43cfad690c8c84263e86d1f88e94cbff3615fa58f359178a74d
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memory/636-119-0x0000000005970000-0x0000000005E6E000-memory.dmpFilesize
5.0MB
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memory/636-124-0x0000000009480000-0x00000000094F3000-memory.dmpFilesize
460KB
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memory/636-118-0x00000000058E0000-0x00000000058E1000-memory.dmpFilesize
4KB
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memory/636-114-0x0000000000FD0000-0x0000000000FD1000-memory.dmpFilesize
4KB
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memory/636-120-0x0000000008F30000-0x0000000008F31000-memory.dmpFilesize
4KB
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memory/636-121-0x0000000005CD0000-0x0000000005CD7000-memory.dmpFilesize
28KB
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memory/636-117-0x0000000005970000-0x0000000005971000-memory.dmpFilesize
4KB
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memory/636-123-0x0000000009420000-0x000000000947B000-memory.dmpFilesize
364KB
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memory/636-122-0x00000000095B0000-0x00000000095B1000-memory.dmpFilesize
4KB
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memory/636-116-0x0000000005E70000-0x0000000005E71000-memory.dmpFilesize
4KB
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memory/3648-126-0x000000000046DCFE-mapping.dmp
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memory/3648-125-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/3648-132-0x00000000053A0000-0x00000000053A1000-memory.dmpFilesize
4KB
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memory/3648-133-0x0000000005250000-0x00000000052EC000-memory.dmpFilesize
624KB
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memory/3648-135-0x0000000006E60000-0x0000000006E61000-memory.dmpFilesize
4KB