Analysis
- max time kernel
127s - max time network
128s - platform
windows10_x64 - resource
win10v20210410 - submitted
13/05/2021, 20:01
General
- Target Proforma Invoice No.42037 for USD. 78116.exe
- Size 1.7MB
- Sample210513-q4d45pn1ps
- SHA256 62f0e30181709aee0cb91688f9323dfcd24c0779d8cedb65f1b17ae97e9bf4dc
Malware Config
Extracted
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matiex
-
Protocol
smtp
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Host
kerekesfoto.com
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Port
587
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Username
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Password
ZX3^tne4R5GT
Signatures
- Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
- Matiex Main Payload 3 IoCs
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 for USD. 78116.exe"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 for USD. 78116.exe"1⤵
- 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\Proforma Invoice No.42037 for USD. 78116.exe"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 for USD. 78116.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 for USD. 78116.exe"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 for USD. 78116.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3368-119-0x0000000005350000-0x0000000005351000-memory.dmp
memory/3368-123-0x0000000001340000-0x00000000013B7000-memory.dmp
memory/3368-118-0x00000000054A0000-0x00000000054A1000-memory.dmp
memory/3368-114-0x0000000000970000-0x0000000000971000-memory.dmp
memory/3368-120-0x0000000005400000-0x00000000058FE000-memory.dmp
memory/3368-121-0x00000000056C0000-0x00000000056C1000-memory.dmp
memory/3368-117-0x0000000005900000-0x0000000005901000-memory.dmp
memory/3368-116-0x0000000005360000-0x0000000005361000-memory.dmp
memory/3368-122-0x00000000058B0000-0x00000000058B4000-memory.dmp
memory/3368-124-0x00000000086F0000-0x0000000008765000-memory.dmp
memory/4044-125-0x0000000000400000-0x0000000000472000-memory.dmp
memory/4044-132-0x0000000004FC0000-0x0000000004FC1000-memory.dmp
memory/4044-133-0x0000000005090000-0x000000000558E000-memory.dmp
memory/4044-134-0x0000000006800000-0x0000000006801000-memory.dmp