oski

General

Target
RFQ-32986.exe
Size 287KB
Sample210723-2h4fc2xmnn
SHA256 259a1e3d537f6e61c1683fe558a87e48da3ec44420cc0285da89c88bbf45375b
MD5 528c56717b32a20c42b98eaf3f26cff5
SHA1 b6afa4b4b2540b89e48b1468a9e3e347ac567056
SHA512 86618685b3f245434bd0801ac78458a44748f4c5466f64f787ba554f3e7cb6ccc1718fae173312ca021a349e7e399d5a3f8650073394fe61a67c694e050a1f47
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Family

oski

C2

irkark.xyz

Targets

- Target
  RFQ-32986.exe
- Size 287KB
- SHA256 259a1e3d537f6e61c1683fe558a87e48da3ec44420cc0285da89c88bbf45375b
- MD5 528c56717b32a20c42b98eaf3f26cff5
- SHA1 b6afa4b4b2540b89e48b1468a9e3e347ac567056
- SHA512 86618685b3f245434bd0801ac78458a44748f4c5466f64f787ba554f3e7cb6ccc1718fae173312ca021a349e7e399d5a3f8650073394fe61a67c694e050a1f47
- MD5 SHA1 SHA512
Score

10^/10

oski discovery infostealer spyware stealer
- Oski
  Oski is an infostealer targeting browser data, crypto wallets.
  infostealer oski
- Downloads MZ/PE file
- Deletes itself
- Loads dropped DLL
- 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
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Tasks

Sharing

General

Malware Config

Extracted

Targets

Downloads MZ/PE file

Deletes itself

Loads dropped DLL

Reads user/profile data of web browsers

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks

static1

behavioral1

behavioral2