snakekeylogger | 3a0bbe57a6c8253d8e46b0f2ea18e4ee47cd2f12f0211e34c3031fb359f7570f

General

Target

1.exe
Size

539KB
MD5

fb36d36dc1599c31de5f311727014cce
SHA1

9133e2b8931d193ca7391af677f06217ba1e3666
SHA256

3a0bbe57a6c8253d8e46b0f2ea18e4ee47cd2f12f0211e34c3031fb359f7570f
SHA512

6cdfaafa5f28cfbc3b597beb4fb928693780cb4fc74f59917408f5c9cf3c75989303e9e3dc179c7a34fd4fe991c7743f8d2b9532abf9414239f42ce74f23aaa9
SSDEEP

12288:6u3q6ytY8X2pbcQ61YoxDJyylIaYmlQVfS3Xszbt1IPra9i72lD:rPyt3v1VxDJYh1VaHKxqPrakED

Score

10^/10

snakekeylogger collection credential_access 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/2880-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2880-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2880-12-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2880-19-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2880-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

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

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 2 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

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	1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1.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 2196 set thread context of 2880	2196	1.exe	32

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	1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2196	1.exe
2196	1.exe
2880	1.exe
2540	powershell.exe
2880	1.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2880	1.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2196	1.exe
Token: SeDebugPrivilege	2880	1.exe
Token: SeDebugPrivilege	2540	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2540	2196	1.exe	30
PID 2196 wrote to memory of 2540	2196	1.exe	30
PID 2196 wrote to memory of 2540	2196	1.exe	30
PID 2196 wrote to memory of 2540	2196	1.exe	30
PID 2196 wrote to memory of 2880	2196	1.exe	32
PID 2196 wrote to memory of 2880	2196	1.exe	32
PID 2196 wrote to memory of 2880	2196	1.exe	32
PID 2196 wrote to memory of 2880	2196	1.exe	32
PID 2196 wrote to memory of 2880	2196	1.exe	32
PID 2196 wrote to memory of 2880	2196	1.exe	32
PID 2196 wrote to memory of 2880	2196	1.exe	32
PID 2196 wrote to memory of 2880	2196	1.exe	32
PID 2196 wrote to memory of 2880	2196	1.exe	32

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	1.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	1.exe

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2196
- 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\1.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\1.exe
  "C:\Users\Admin\AppData\Local\Temp\1.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:2880

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/2196-0-0x0000000073E6E000-0x0000000073E6F000-memory.dmp

Filesize
4KB

Download
memory/2196-1-0x0000000001370000-0x00000000013FC000-memory.dmp

Filesize
560KB

Download
memory/2196-2-0x0000000073E60000-0x000000007454E000-memory.dmp

Filesize
6.9MB

Download
memory/2196-3-0x0000000000540000-0x0000000000550000-memory.dmp

Filesize
64KB

Download
memory/2196-4-0x0000000073E6E000-0x0000000073E6F000-memory.dmp

Filesize
4KB

Download
memory/2196-5-0x0000000073E60000-0x000000007454E000-memory.dmp

Filesize
6.9MB

Download
memory/2196-6-0x0000000001180000-0x00000000011E8000-memory.dmp

Filesize
416KB

Download
memory/2196-21-0x0000000073E60000-0x000000007454E000-memory.dmp

Filesize
6.9MB

Download
memory/2880-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2880-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2880-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2880-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2880-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2880-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2880-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2880-20-0x0000000073E60000-0x000000007454E000-memory.dmp

Filesize
6.9MB

Download
memory/2880-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2880-22-0x0000000073E60000-0x000000007454E000-memory.dmp

Filesize
6.9MB

Download
memory/2880-25-0x0000000073E60000-0x000000007454E000-memory.dmp

Filesize
6.9MB

Download
memory/2880-26-0x0000000073E60000-0x000000007454E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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