Analysis
- max time kernel
150s - max time network
152s - platform
windows10_x64 - resource
win10v20210408 - submitted
06/10/2021, 04:15
General
- Target 210927,pdf.exe
- Size 328KB
- Sample211006-et8peaaec5
- SHA256 71e8044a55f0f599c6b0d3e19981fa6c6eda849f7041b9b86d71ec9287af060e
Malware Config
Extracted
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snakekeylogger
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Protocol
smtp
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Host
mail.karacainsaat.com.tr
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Port
587
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Username
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Password
karaca!2015!
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\210927,pdf.exe"C:\Users\Admin\AppData\Local\Temp\210927,pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VEyImYE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1080.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\210927,pdf.exe"C:\Users\Admin\AppData\Local\Temp\210927,pdf.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\210927,pdf.exe"C:\Users\Admin\AppData\Local\Temp\210927,pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/912-121-0x0000000004D60000-0x0000000004D6A000-memory.dmp
memory/912-117-0x0000000004BB0000-0x0000000004BB1000-memory.dmp
memory/912-118-0x0000000004B10000-0x000000000500E000-memory.dmp
memory/912-119-0x0000000004B10000-0x0000000004B11000-memory.dmp
memory/912-120-0x0000000004F50000-0x0000000004F51000-memory.dmp
memory/912-114-0x0000000000280000-0x0000000000281000-memory.dmp
memory/912-122-0x00000000073A0000-0x00000000073E2000-memory.dmp
memory/912-116-0x0000000005010000-0x0000000005011000-memory.dmp
memory/4048-124-0x0000000000400000-0x0000000000426000-memory.dmp
memory/4048-131-0x0000000005480000-0x000000000597E000-memory.dmp
memory/4048-133-0x0000000006850000-0x0000000006851000-memory.dmp