snakekeylogger | ee8e3d37fcdeb4590b376bfa53991c9163427a76caea07c32215c8e34a823320

General

Target

file.exe
Size

575KB
MD5

0f37be8985e3940af919dc35bc4ed779
SHA1

2f2a27ec8a249cef7058f9d7a425f8817e67445c
SHA256

ee8e3d37fcdeb4590b376bfa53991c9163427a76caea07c32215c8e34a823320
SHA512

feaf50abba44f44e272a96690e552bcd960a25009ca20a1bec98d6064dffb749fe0d436892bdabd69d6233641afa355b70a36e9ae2faac282295b6e4efff07dc
SSDEEP

6144:NzYBCPvubUOZoL9xh8+62h6vfrxaj0cdJHqBdqOtNYrrDduA49jTr5Mv0eYvw0Xl:xPG7MAqtO4PDkdjn5Q0G0Xl0Vcu9kR

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/2740-24-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2740-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2740-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2740-20-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2740-18-0x0000000000400000-0x0000000000426000-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
1820	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\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 3016 set thread context of 2740	3016	file.exe	34

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
2752	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3016	file.exe
3016	file.exe
2740	vbc.exe
1820	powershell.exe
2740	vbc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	file.exe
Token: SeDebugPrivilege	2740	vbc.exe
Token: SeDebugPrivilege	1820	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 1820	3016	file.exe	30
PID 3016 wrote to memory of 1820	3016	file.exe	30
PID 3016 wrote to memory of 1820	3016	file.exe	30
PID 3016 wrote to memory of 1820	3016	file.exe	30
PID 3016 wrote to memory of 2752	3016	file.exe	32
PID 3016 wrote to memory of 2752	3016	file.exe	32
PID 3016 wrote to memory of 2752	3016	file.exe	32
PID 3016 wrote to memory of 2752	3016	file.exe	32
PID 3016 wrote to memory of 2740	3016	file.exe	34
PID 3016 wrote to memory of 2740	3016	file.exe	34
PID 3016 wrote to memory of 2740	3016	file.exe	34
PID 3016 wrote to memory of 2740	3016	file.exe	34
PID 3016 wrote to memory of 2740	3016	file.exe	34
PID 3016 wrote to memory of 2740	3016	file.exe	34
PID 3016 wrote to memory of 2740	3016	file.exe	34
PID 3016 wrote to memory of 2740	3016	file.exe	34
PID 3016 wrote to memory of 2740	3016	file.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\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:3016
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gTtJoqV.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1820
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gTtJoqV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC6A9.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2752
- 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:2740

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\tmpC6A9.tmp

Filesize
1KB

MD5
4f51b3b83682410aeb7a58168e259770

SHA1
72b7a648c143a69850ea947b62b4186ffab63914

SHA256
6b291bcba0976e74cfad3e5dd9bc0ed40b15f48ee1ed1fa21884c9daf1eb052a

SHA512
db4ec98d1bf1ca3adc84422989f0337759f8337d6bbd44efa48afbb84eb6aa35a69b942515aac66f99b83c4365b9965a84490c723fb753ffeb01ca667d19a993

Download Submit
memory/2740-22-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-18-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-24-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3016-5-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/3016-1-0x0000000000BA0000-0x0000000000C32000-memory.dmp

Filesize
584KB

Download
memory/3016-2-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/3016-0-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/3016-6-0x00000000051A0000-0x000000000520C000-memory.dmp

Filesize
432KB

Download
memory/3016-4-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/3016-3-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3016-26-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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