snakekeylogger | 0374f4818c6b9ea88e9a8e8ae7f36ff7a7c66704fe110e3005b5ba6704d4edc4

General

Target

Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe
Size

2.2MB
MD5

3cf077ee2e506e16cc65d9d93d2d094e
SHA1

5e7b08bded387f0df8f01e9c15a4b10dd93fc33c
SHA256

0374f4818c6b9ea88e9a8e8ae7f36ff7a7c66704fe110e3005b5ba6704d4edc4
SHA512

cab26c72ff371a02e5e5576d6bcb0de06feb7b0b3d87671379107ba83ed3f38004f0de1f02f52fe5680d0f5c4d1529753491b9325de79756962eabc2113252ef
SSDEEP

49152:5WiP0wV0hJ5VGx6ODJ1+nEtWX33oG1SdvoGSbVUWE:dVUcUabFVeOWE

Score

10^/10

snakekeylogger discovery evasion execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7326718143:AAHCoPbdl01YWgtL8Z76U43CTNQwWuaC5Lk/sendMessage?chat_id=7121607304

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/912-13-0x0000000000400000-0x0000000000426000-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
720	powershell.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..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
41	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1060 set thread context of 912	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	96

System Location Discovery: System Language Discovery 1 TTPs 3 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	AddInProcess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	choice.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
720	powershell.exe
720	powershell.exe
912	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	720	powershell.exe
Token: SeDebugPrivilege	912	AddInProcess32.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 720	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	94
PID 1060 wrote to memory of 720	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	94
PID 1060 wrote to memory of 912	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	96
PID 1060 wrote to memory of 912	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	96
PID 1060 wrote to memory of 912	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	96
PID 1060 wrote to memory of 912	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	96
PID 1060 wrote to memory of 912	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	96
PID 1060 wrote to memory of 912	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	96
PID 1060 wrote to memory of 912	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	96
PID 1060 wrote to memory of 912	1060	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe	96
PID 912 wrote to memory of 3232	912	AddInProcess32.exe	97
PID 912 wrote to memory of 3232	912	AddInProcess32.exe	97
PID 912 wrote to memory of 3232	912	AddInProcess32.exe	97
PID 3232 wrote to memory of 1756	3232	cmd.exe	99
PID 3232 wrote to memory of 1756	3232	cmd.exe	99
PID 3232 wrote to memory of 1756	3232	cmd.exe	99

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe

C:\Users\Admin\AppData\Local\Temp\Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe
"C:\Users\Admin\AppData\Local\Temp\Payment_Receipt_Copy.xlxss͏x͏l͏x͏..exe"
1⤵
- Disables RegEdit via registry modification
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1060
- C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath $env:UserProfile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:720
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3232
  - - C:\Windows\SysWOW64\choice.exe
      choice /C Y /N /D Y /T 3
      4⤵
      System Location Discovery: System Language Discovery
      PID:1756

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

Modify Registry

1

T1112

Credential Access

Discovery

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

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2tp0c5cd.lwp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/720-14-0x00007FFCECE20000-0x00007FFCED8E1000-memory.dmp

Filesize
10.8MB

Download
memory/720-6-0x000002C070960000-0x000002C070982000-memory.dmp

Filesize
136KB

Download
memory/720-11-0x00007FFCECE20000-0x00007FFCED8E1000-memory.dmp

Filesize
10.8MB

Download
memory/720-12-0x00007FFCECE20000-0x00007FFCED8E1000-memory.dmp

Filesize
10.8MB

Download
memory/720-0-0x00007FFCECE23000-0x00007FFCECE25000-memory.dmp

Filesize
8KB

Download
memory/720-17-0x00007FFCECE20000-0x00007FFCED8E1000-memory.dmp

Filesize
10.8MB

Download
memory/912-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/912-18-0x0000000074B5E000-0x0000000074B5F000-memory.dmp

Filesize
4KB

Download
memory/912-19-0x0000000005880000-0x0000000005E24000-memory.dmp

Filesize
5.6MB

Download
memory/912-20-0x0000000005370000-0x000000000540C000-memory.dmp

Filesize
624KB

Download
memory/912-21-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/912-23-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download

Analysis

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