snakekeylogger | 1c9a030db393a1bba1b147b39f3a612e2babe9594b406449d40cdcaf374d32cd

General

Target

TeklifformuEkinoksLS10872510400000152.exe
Size

545KB
MD5

752c58548ee76d6732517c7d9f829df8
SHA1

2f17dd9ff173034bc12621c0b35a5b2128b30ad7
SHA256

1c9a030db393a1bba1b147b39f3a612e2babe9594b406449d40cdcaf374d32cd
SHA512

0061e07587eb8b2d3ee468bfb08bcc46087ff18621f758467d89965ea2a0441a990132be32d35161b4f6ed2e067354361b2034653079059fad765dcc53260c7e
SSDEEP

12288:lrt8bQbCqT7OqsqehMWPdQ+ToC7F4CgPo5a4:UIXqqYhM4dFoSgw5a4

Score

10^/10

snakekeylogger collection discovery execution keylogger spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2740-19-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2740-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2740-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2740-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2740-9-0x0000000000400000-0x0000000000426000-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
2784	powershell.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TeklifformuEkinoksLS10872510400000152.exe
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TeklifformuEkinoksLS10872510400000152.exe
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TeklifformuEkinoksLS10872510400000152.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 1488 set thread context of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33

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 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	TeklifformuEkinoksLS10872510400000152.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TeklifformuEkinoksLS10872510400000152.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1488	TeklifformuEkinoksLS10872510400000152.exe
1488	TeklifformuEkinoksLS10872510400000152.exe
2740	TeklifformuEkinoksLS10872510400000152.exe
2784	powershell.exe
2740	TeklifformuEkinoksLS10872510400000152.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2740	TeklifformuEkinoksLS10872510400000152.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1488	TeklifformuEkinoksLS10872510400000152.exe
Token: SeDebugPrivilege	2740	TeklifformuEkinoksLS10872510400000152.exe
Token: SeDebugPrivilege	2784	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 2784	1488	TeklifformuEkinoksLS10872510400000152.exe	31
PID 1488 wrote to memory of 2784	1488	TeklifformuEkinoksLS10872510400000152.exe	31
PID 1488 wrote to memory of 2784	1488	TeklifformuEkinoksLS10872510400000152.exe	31
PID 1488 wrote to memory of 2784	1488	TeklifformuEkinoksLS10872510400000152.exe	31
PID 1488 wrote to memory of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33
PID 1488 wrote to memory of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33
PID 1488 wrote to memory of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33
PID 1488 wrote to memory of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33
PID 1488 wrote to memory of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33
PID 1488 wrote to memory of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33
PID 1488 wrote to memory of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33
PID 1488 wrote to memory of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33
PID 1488 wrote to memory of 2740	1488	TeklifformuEkinoksLS10872510400000152.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TeklifformuEkinoksLS10872510400000152.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TeklifformuEkinoksLS10872510400000152.exe

C:\Users\Admin\AppData\Local\Temp\TeklifformuEkinoksLS10872510400000152.exe
"C:\Users\Admin\AppData\Local\Temp\TeklifformuEkinoksLS10872510400000152.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1488
- 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\TeklifformuEkinoksLS10872510400000152.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2784
- C:\Users\Admin\AppData\Local\Temp\TeklifformuEkinoksLS10872510400000152.exe
  "C:\Users\Admin\AppData\Local\Temp\TeklifformuEkinoksLS10872510400000152.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - 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

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1488-0-0x000000007431E000-0x000000007431F000-memory.dmp

Filesize
4KB

Download
memory/1488-1-0x0000000000310000-0x000000000039E000-memory.dmp

Filesize
568KB

Download
memory/1488-2-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/1488-3-0x00000000003D0000-0x00000000003E2000-memory.dmp

Filesize
72KB

Download
memory/1488-4-0x000000007431E000-0x000000007431F000-memory.dmp

Filesize
4KB

Download
memory/1488-5-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/1488-6-0x00000000055D0000-0x0000000005638000-memory.dmp

Filesize
416KB

Download
memory/1488-21-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/2740-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

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

Filesize
152KB

Download
memory/2740-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2740-20-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/2740-22-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/2740-25-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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