snakekeylogger | e51e7b073e5fa3832455c7e87ccd3bbc7dd1dd3c72cf0bb273f1e24adec6ce92

General

Target

file.exe
Size

844KB
MD5

5e2725e6fc1948c0f8d7044bdbf5218a
SHA1

ab0f3415c6cd7f3ca2a1e935910a4801face7d99
SHA256

e51e7b073e5fa3832455c7e87ccd3bbc7dd1dd3c72cf0bb273f1e24adec6ce92
SHA512

dac35ed58a28d8df099a088a77ca8960e38d4e51a9149d68e96ed8f2bd9fdf0e449f7226fafc004c28e151370a356fe164493470262c1e0cfb87425cf1d2d731
SSDEEP

12288:mUnNezvoYK6g7B/7SDmX6a+xKCOmNOoqwBrMyU+Jiqa/M/kR:1IzLK6g7QSKzxLNOxwZMyUeBFa

Score

10^/10

snakekeylogger collection discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7692220058:AAEny12fSzuKXI7iNJaESECu5UR80nmwLAQ/sendMessage?chat_id=7342994424

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2936-22-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2936-19-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2936-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2936-24-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2936-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger 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
2800	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.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 1388 set thread context of 2936	1388	file.exe	36

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 4 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2864	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1388	file.exe
1388	file.exe
2936	vbc.exe
2800	powershell.exe
2936	vbc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1388	file.exe
Token: SeDebugPrivilege	2936	vbc.exe
Token: SeDebugPrivilege	2800	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 2800	1388	file.exe	31
PID 1388 wrote to memory of 2800	1388	file.exe	31
PID 1388 wrote to memory of 2800	1388	file.exe	31
PID 1388 wrote to memory of 2800	1388	file.exe	31
PID 1388 wrote to memory of 2864	1388	file.exe	32
PID 1388 wrote to memory of 2864	1388	file.exe	32
PID 1388 wrote to memory of 2864	1388	file.exe	32
PID 1388 wrote to memory of 2864	1388	file.exe	32
PID 1388 wrote to memory of 2860	1388	file.exe	35
PID 1388 wrote to memory of 2860	1388	file.exe	35
PID 1388 wrote to memory of 2860	1388	file.exe	35
PID 1388 wrote to memory of 2860	1388	file.exe	35
PID 1388 wrote to memory of 2936	1388	file.exe	36
PID 1388 wrote to memory of 2936	1388	file.exe	36
PID 1388 wrote to memory of 2936	1388	file.exe	36
PID 1388 wrote to memory of 2936	1388	file.exe	36
PID 1388 wrote to memory of 2936	1388	file.exe	36
PID 1388 wrote to memory of 2936	1388	file.exe	36
PID 1388 wrote to memory of 2936	1388	file.exe	36
PID 1388 wrote to memory of 2936	1388	file.exe	36
PID 1388 wrote to memory of 2936	1388	file.exe	36

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sEVJotUOhCXWC.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2800
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sEVJotUOhCXWC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE080.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2864
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:2860
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE080.tmp

Filesize
1KB

MD5
8b5e5ccdbe7018afc98c2502b14deabb

SHA1
1fb81a209fac97e082745422ba902b61dcece697

SHA256
de9fd1a1c152019d5d7605cd5a303355650699575367b322698a6ff2313d1244

SHA512
beb550a795db43b0028f0523c1bd1f3803c0c6570e18ecce72ba3834bf778b8caa3316250de7afd05982e59f0d6398ad8f60a44a20a0469073ae6974f0c37051

Download Submit
memory/1388-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/1388-1-0x0000000000020000-0x00000000000F6000-memory.dmp

Filesize
856KB

Download
memory/1388-2-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/1388-3-0x0000000000700000-0x000000000071E000-memory.dmp

Filesize
120KB

Download
memory/1388-4-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/1388-5-0x0000000004F10000-0x0000000004F7C000-memory.dmp

Filesize
432KB

Download
memory/1388-25-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/2936-22-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2936-21-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2936-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2936-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2936-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2936-24-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2936-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2936-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads