oski

General

Target

proforma invoice No. 42037,pdf.exe
Size

31KB
Sample

210505-8c3gkqakp6
MD5

1fc85b87347785b556af1d0f47a1f928
SHA1

c39c80b549f7dc46bfe18d5b956a4a17b28bac78
SHA256

a3ef4500e9f5f2447d55de102e2529a62b48f644b03d22199ce5c69c0ca57c88
SHA512

2c13b8f8e8845ed9ad2c5718a1fdbe16da06106b54cca04d8f978c0d15c1af8e90b900900e4b1c325e995ef5799101eee9edc182fc17c92dc33ecab478ac490c

Score

10^/10

Malware Config

Extracted

Family

oski

C2

203.159.80.72

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot1761516426:AAE3Juu_v6fG9Gy1S33LdTvyz85ua-duZsk/sendMessage?chat_id=1727399585

Targets

- Target
  
  proforma invoice No. 42037,pdf.exe
- Size
  
  31KB
- MD5
  
  1fc85b87347785b556af1d0f47a1f928
- SHA1
  
  c39c80b549f7dc46bfe18d5b956a4a17b28bac78
- SHA256
  
  a3ef4500e9f5f2447d55de102e2529a62b48f644b03d22199ce5c69c0ca57c88
- SHA512
  
  2c13b8f8e8845ed9ad2c5718a1fdbe16da06106b54cca04d8f978c0d15c1af8e90b900900e4b1c325e995ef5799101eee9edc182fc17c92dc33ecab478ac490c
Score

10^/10

oski snakekeylogger discovery infostealer keylogger spyware stealer
- Oski
  Oski is an infostealer targeting browser data, crypto wallets.
  infostealer oski
- Snake Keylogger
  Keylogger and Infostealer first seen in November 2020.
  stealer keylogger snakekeylogger
- Snake Keylogger Payload
- Downloads MZ/PE file
- Executes dropped EXE
- Loads dropped DLL
- Reads data files stored by FTP clients
  Tries to access configuration files associated with programs like FileZilla.
  spyware stealer
- Reads user/profile data of local email clients
  Email clients store some user data on disk where infostealers will often target it.
  spyware stealer
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

4

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Exfiltration

Command and Control

Impact

Tasks

Sharing

General

Malware Config

Extracted

Extracted

Targets

Snake Keylogger

Snake Keylogger Payload

Downloads MZ/PE file

Executes dropped EXE

Loads dropped DLL

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Looks up external IP address via web service

Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Tasks

static1

behavioral1

behavioral2