Analysis
- max time kernel
109s - max time network
112s - platform
windows10_x64 - resource
win10v20201028 - submitted
30/03/2021, 12:20
General
- Target New Quotation. pdf_______________________________________________.exe
- Size 935KB
- Sample210330-yxa2mk4pya
- SHA256 81d6b1d3f6524acdc3c7280e11b3ff43ea0f9cd7a2ccdaa6283de2ea28d74dfc
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.sajbh.com
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Port
587
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Username
-
Password
Saj@2014
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 2 IoCs
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\New Quotation. pdf_______________________________________________.exe"C:\Users\Admin\AppData\Local\Temp\New Quotation. 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\gwbQhsfSEQwDWu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF0D9.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\New Quotation. pdf_______________________________________________.exe"C:\Users\Admin\AppData\Local\Temp\New Quotation. pdf_______________________________________________.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\New Quotation. pdf_______________________________________________.exe"C:\Users\Admin\AppData\Local\Temp\New Quotation. pdf_______________________________________________.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/612-26-0x00000000070F0000-0x00000000070F1000-memory.dmp
memory/612-23-0x0000000005940000-0x0000000005941000-memory.dmp
memory/612-18-0x0000000073360000-0x0000000073A4E000-memory.dmp
memory/612-15-0x0000000000400000-0x000000000046A000-memory.dmp
memory/4776-7-0x0000000005230000-0x0000000005231000-memory.dmp
memory/4776-12-0x0000000005ED0000-0x0000000005F61000-memory.dmp
memory/4776-11-0x0000000005140000-0x0000000005149000-memory.dmp
memory/4776-10-0x0000000005490000-0x0000000005491000-memory.dmp
memory/4776-9-0x00000000053F0000-0x00000000053F1000-memory.dmp
memory/4776-8-0x0000000005120000-0x0000000005121000-memory.dmp
memory/4776-2-0x0000000073360000-0x0000000073A4E000-memory.dmp
memory/4776-6-0x0000000005730000-0x0000000005731000-memory.dmp
memory/4776-5-0x0000000005190000-0x0000000005191000-memory.dmp
memory/4776-3-0x0000000000820000-0x0000000000821000-memory.dmp