snakekeylogger | 2708fc0dd1f37e545533dbe8565658ff819ded88f33b3856cebb0b3a531965ad

General

Target

Shipment Document No - 100184429.exe
Size

511KB
MD5

cdee9eed2080c5d3c0494692e26d5659
SHA1

4d366ef4edc7a0e5dce9beebf38132d9d5418642
SHA256

2708fc0dd1f37e545533dbe8565658ff819ded88f33b3856cebb0b3a531965ad
SHA512

4faf501516cdef327db61c66e9ebed0422b6047fd69eff5ac29f6e1a1aa3d1ea552b9fab74ca84a760b0d7f2d18c573054ac7a5ed147e39bad41e7a30d47d389
SSDEEP

12288:W57kvq9inPTpfGU3VGQ9Co2dWsAvqafbwMVkU9CYs88fk7H5SJ/T:W5oqUPTpfG0GqT2dF2qafbV9CYsa7sJ

Score

10^/10

snakekeylogger discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6523340491:AAE-gt6KJIiSGDgELguwLbdTkn0MP0-909Y/sendMessage?chat_id=5116181161

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2812-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2812-22-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2812-19-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2812-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2812-11-0x0000000000400000-0x0000000000426000-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
2540	powershell.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 1728 set thread context of 2812	1728	Shipment Document No - 100184429.exe	31

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2368	2812	WerFault.exe	31

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	Shipment Document No - 100184429.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Shipment Document No - 100184429.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1728	Shipment Document No - 100184429.exe
2812	Shipment Document No - 100184429.exe
1728	Shipment Document No - 100184429.exe
2540	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	Shipment Document No - 100184429.exe
Token: SeDebugPrivilege	2812	Shipment Document No - 100184429.exe
Token: SeDebugPrivilege	2540	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2540	1728	Shipment Document No - 100184429.exe	30
PID 1728 wrote to memory of 2540	1728	Shipment Document No - 100184429.exe	30
PID 1728 wrote to memory of 2540	1728	Shipment Document No - 100184429.exe	30
PID 1728 wrote to memory of 2540	1728	Shipment Document No - 100184429.exe	30
PID 1728 wrote to memory of 2812	1728	Shipment Document No - 100184429.exe	31
PID 1728 wrote to memory of 2812	1728	Shipment Document No - 100184429.exe	31
PID 1728 wrote to memory of 2812	1728	Shipment Document No - 100184429.exe	31
PID 1728 wrote to memory of 2812	1728	Shipment Document No - 100184429.exe	31
PID 1728 wrote to memory of 2812	1728	Shipment Document No - 100184429.exe	31
PID 1728 wrote to memory of 2812	1728	Shipment Document No - 100184429.exe	31
PID 1728 wrote to memory of 2812	1728	Shipment Document No - 100184429.exe	31
PID 1728 wrote to memory of 2812	1728	Shipment Document No - 100184429.exe	31
PID 1728 wrote to memory of 2812	1728	Shipment Document No - 100184429.exe	31
PID 2812 wrote to memory of 2368	2812	Shipment Document No - 100184429.exe	34
PID 2812 wrote to memory of 2368	2812	Shipment Document No - 100184429.exe	34
PID 2812 wrote to memory of 2368	2812	Shipment Document No - 100184429.exe	34
PID 2812 wrote to memory of 2368	2812	Shipment Document No - 100184429.exe	34

C:\Users\Admin\AppData\Local\Temp\Shipment Document No - 100184429.exe
"C:\Users\Admin\AppData\Local\Temp\Shipment Document No - 100184429.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1728
- 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\Shipment Document No - 100184429.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2540
- C:\Users\Admin\AppData\Local\Temp\Shipment Document No - 100184429.exe
  "C:\Users\Admin\AppData\Local\Temp\Shipment Document No - 100184429.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 1076
    3⤵
    - Program crash
    PID:2368

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/1728-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/1728-1-0x00000000009A0000-0x0000000000A26000-memory.dmp

Filesize
536KB

Download
memory/1728-2-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/1728-3-0x00000000005B0000-0x00000000005C0000-memory.dmp

Filesize
64KB

Download
memory/1728-4-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/1728-5-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/1728-6-0x0000000001FC0000-0x0000000002028000-memory.dmp

Filesize
416KB

Download
memory/1728-25-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2812-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2812-22-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2812-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2812-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2812-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2812-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2812-24-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2812-23-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2812-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2812-28-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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