snakekeylogger | 91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b

General

Target

91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
Size

654KB
MD5

ace7321f101fddbc56f6b8a1754c6480
SHA1

d9d534d2ae693ef58f45cd1c8925639408839fbe
SHA256

91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b
SHA512

55fe40c3fb6e884086267370c928af043a4bcdbe6c75e9c879351458e8940299ff1abf0fe54421a3c2c44a0bb30a54979990fdd284a00b1ace501011a6a59dd2
SSDEEP

12288:DW0TFYJW0Qya7OsO1Bq2G4qNQScuH8Vv8NhSAQkSHAC8GxLuyNJwF1:D7YJW0Qya7DO/qLNQ7r8NYAQNACRw

Score

10^/10

snakekeylogger discovery execution keylogger stealer

Malware Config

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2664-9-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2664-16-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2664-19-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2664-14-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2664-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2792	powershell.exe

Deletes itself 1 IoCs

pid	Process
2064	cmd.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1400 set thread context of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
2664	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
2792	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
Token: SeDebugPrivilege	2664	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
Token: SeDebugPrivilege	2792	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1400 wrote to memory of 2792	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	31
PID 1400 wrote to memory of 2792	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	31
PID 1400 wrote to memory of 2792	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	31
PID 1400 wrote to memory of 2792	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	31
PID 1400 wrote to memory of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32
PID 1400 wrote to memory of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32
PID 1400 wrote to memory of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32
PID 1400 wrote to memory of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32
PID 1400 wrote to memory of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32
PID 1400 wrote to memory of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32
PID 1400 wrote to memory of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32
PID 1400 wrote to memory of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32
PID 1400 wrote to memory of 2664	1400	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	32
PID 2664 wrote to memory of 2064	2664	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	34
PID 2664 wrote to memory of 2064	2664	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	34
PID 2664 wrote to memory of 2064	2664	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	34
PID 2664 wrote to memory of 2064	2664	91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe	34
PID 2064 wrote to memory of 2088	2064	cmd.exe	36
PID 2064 wrote to memory of 2088	2064	cmd.exe	36
PID 2064 wrote to memory of 2088	2064	cmd.exe	36
PID 2064 wrote to memory of 2088	2064	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
"C:\Users\Admin\AppData\Local\Temp\91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2792
- C:\Users\Admin\AppData\Local\Temp\91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe
  "C:\Users\Admin\AppData\Local\Temp\91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\91b20cd419833222c4bfdf40ac9126f0519e799f0a237192433b9a6cf3ab1a4b.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2064
  - - C:\Windows\SysWOW64\choice.exe
      choice /C Y /N /D Y /T 3
      4⤵
      System Location Discovery: System Language Discovery
      PID:2088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1400-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

Filesize
4KB

Download
memory/1400-1-0x00000000010A0000-0x0000000001148000-memory.dmp

Filesize
672KB

Download
memory/1400-2-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/1400-3-0x0000000000440000-0x000000000045C000-memory.dmp

Filesize
112KB

Download
memory/1400-4-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

Filesize
4KB

Download
memory/1400-5-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/1400-6-0x0000000004F40000-0x0000000004FA8000-memory.dmp

Filesize
416KB

Download
memory/1400-21-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2664-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2664-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2664-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2664-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2664-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2664-20-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2664-22-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-25-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-26-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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