oski | e323380042d101950174f5ef1d807e8883a97515a36e8ca90f9d7e45d05d09b5

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
26/04/2026, 04:34

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General

Target
2026-04-26_842ca1795ba91e4f7c0a2dd003b7d177_elex_karagany_mafia_oski-stealer_rhadamanthys_stealc.exe
Size 200KB
Sample260426-e647rafy2q
SHA256 e323380042d101950174f5ef1d807e8883a97515a36e8ca90f9d7e45d05d09b5
MD5 842ca1795ba91e4f7c0a2dd003b7d177
SHA1 9b1749f1b816a5f25a027e098d31cc2eaf90fdf7
SHA512 c32ff2a242fa6f49ccf4a8c2843f4119c601fa7586857d9b9ea52951dad5e8e33ebbdeb0a3c2601b822ffe0fba2677cbebeafe1703536d298f4eb8522e31252e
SSDEEP 3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIt1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pN01Ljo3c
TLSH
T134146D30B690C035E8A310BCDDEE86BEB96C7A301F5950C3A3D45A662F712F27A71657
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery oski infostealer spyware stealer

Malware Config

Signatures

Family: Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2384	4176	WerFault.exe	79

System Location Discovery: System Language Discovery 1 TTPs 1 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	2026-04-26_842ca1795ba91e4f7c0a2dd003b7d177_elex_karagany_mafia_oski-stealer_rhadamanthys_stealc.exe

C:\Users\Admin\AppData\Local\Temp\2026-04-26_842ca1795ba91e4f7c0a2dd003b7d177_elex_karagany_mafia_oski-stealer_rhadamanthys_stealc.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-26_842ca1795ba91e4f7c0a2dd003b7d177_elex_karagany_mafia_oski-stealer_rhadamanthys_stealc.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4176 -s 1376
  2⤵
  - Program crash
  PID:2384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4176 -ip 4176
1⤵
PID:1740

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads