snakekeylogger | 717d82ce99d135ac095b8887331ee448fe0134b10b467ea1843fbe8836a46751

Analysis

max time kernel
119s
max time network
136s
platform
windows7_x64
resource
win7-en-20211208
submitted
31/01/2022, 02:30

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General

Target
OCEAN GEM V-1811.exe
Size 828KB
Sample220131-cy7a2aedb6
SHA256 717d82ce99d135ac095b8887331ee448fe0134b10b467ea1843fbe8836a46751
MD5 18d91d44d1b903c3bda60ccd5a9d4e5c
SHA1 edbac6f9372dc3fa93842d97a05b1e38a8f9a40e
SHA512 a530cea9850a548c79a815c25a51c066e73bc376403e82b3b7ab223efb7e442474d7aa4e97fc1176ac0e3d5573d5d759ba9f8f5a1263a407dd44c4ab8166c3da
MD5 SHA1 SHA512

Score

10^/10

snakekeylogger keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol
smtp
Host
mail.transmeridian-sas.com
Port
587
Username
[email protected]
Password
xyrPIck;O_Xz

Signatures

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

Snake Keylogger Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1832-63-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1832-65-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1832-64-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1832-66-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

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 1624 set thread context of 1832	1624	OCEAN GEM V-1811.exe	32

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1244	1832	WerFault.exe	32

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1328	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1624	OCEAN GEM V-1811.exe
1624	OCEAN GEM V-1811.exe
1624	OCEAN GEM V-1811.exe
1624	OCEAN GEM V-1811.exe
1624	OCEAN GEM V-1811.exe
1832	OCEAN GEM V-1811.exe
548	powershell.exe
1244	WerFault.exe
1244	WerFault.exe
1244	WerFault.exe
1244	WerFault.exe
1244	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	OCEAN GEM V-1811.exe
Token: SeDebugPrivilege	1832	OCEAN GEM V-1811.exe
Token: SeDebugPrivilege	548	powershell.exe
Token: SeDebugPrivilege	1244	WerFault.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 548	1624	OCEAN GEM V-1811.exe	27
PID 1624 wrote to memory of 548	1624	OCEAN GEM V-1811.exe	27
PID 1624 wrote to memory of 548	1624	OCEAN GEM V-1811.exe	27
PID 1624 wrote to memory of 548	1624	OCEAN GEM V-1811.exe	27
PID 1624 wrote to memory of 1328	1624	OCEAN GEM V-1811.exe	29
PID 1624 wrote to memory of 1328	1624	OCEAN GEM V-1811.exe	29
PID 1624 wrote to memory of 1328	1624	OCEAN GEM V-1811.exe	29
PID 1624 wrote to memory of 1328	1624	OCEAN GEM V-1811.exe	29
PID 1624 wrote to memory of 1632	1624	OCEAN GEM V-1811.exe	31
PID 1624 wrote to memory of 1632	1624	OCEAN GEM V-1811.exe	31
PID 1624 wrote to memory of 1632	1624	OCEAN GEM V-1811.exe	31
PID 1624 wrote to memory of 1632	1624	OCEAN GEM V-1811.exe	31
PID 1624 wrote to memory of 1832	1624	OCEAN GEM V-1811.exe	32
PID 1624 wrote to memory of 1832	1624	OCEAN GEM V-1811.exe	32
PID 1624 wrote to memory of 1832	1624	OCEAN GEM V-1811.exe	32
PID 1624 wrote to memory of 1832	1624	OCEAN GEM V-1811.exe	32
PID 1624 wrote to memory of 1832	1624	OCEAN GEM V-1811.exe	32
PID 1624 wrote to memory of 1832	1624	OCEAN GEM V-1811.exe	32
PID 1624 wrote to memory of 1832	1624	OCEAN GEM V-1811.exe	32
PID 1624 wrote to memory of 1832	1624	OCEAN GEM V-1811.exe	32
PID 1624 wrote to memory of 1832	1624	OCEAN GEM V-1811.exe	32
PID 1832 wrote to memory of 1244	1832	OCEAN GEM V-1811.exe	33
PID 1832 wrote to memory of 1244	1832	OCEAN GEM V-1811.exe	33
PID 1832 wrote to memory of 1244	1832	OCEAN GEM V-1811.exe	33
PID 1832 wrote to memory of 1244	1832	OCEAN GEM V-1811.exe	33

C:\Users\Admin\AppData\Local\Temp\OCEAN GEM V-1811.exe
"C:\Users\Admin\AppData\Local\Temp\OCEAN GEM V-1811.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cNgUxjqejn.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:548
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cNgUxjqejn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAC27.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1328
- C:\Users\Admin\AppData\Local\Temp\OCEAN GEM V-1811.exe
  "C:\Users\Admin\AppData\Local\Temp\OCEAN GEM V-1811.exe"
  2⤵
  PID:1632
- C:\Users\Admin\AppData\Local\Temp\OCEAN GEM V-1811.exe
  "C:\Users\Admin\AppData\Local\Temp\OCEAN GEM V-1811.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1832
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 1144
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1244

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/548-71-0x00000000020D2000-0x00000000020D4000-memory.dmp

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memory/548-70-0x00000000020D1000-0x00000000020D2000-memory.dmp

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memory/548-68-0x00000000020D0000-0x00000000020D1000-memory.dmp

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memory/1244-73-0x0000000000530000-0x0000000000608000-memory.dmp

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memory/1624-58-0x00000000050A0000-0x00000000050F2000-memory.dmp

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memory/1624-54-0x0000000000880000-0x0000000000958000-memory.dmp

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memory/1624-57-0x0000000000290000-0x000000000029C000-memory.dmp

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memory/1624-56-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

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memory/1624-55-0x0000000076C61000-0x0000000076C63000-memory.dmp

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memory/1832-61-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1832-62-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1832-63-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1832-65-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1832-64-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1832-66-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1832-69-0x00000000024E0000-0x00000000046B0000-memory.dmp

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