oski | 314a96bec40e818a9cd54f886b0fcf5e63b032d07aa46e19e98475789f6414f3

Analysis

max time kernel
32s
max time network
27s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
26/02/2025, 17:13

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General

Target

2025-02-26_521708329e9c7801c7bf06e2c6db77ad_karagany_mafia.exe
Size

200KB
MD5

521708329e9c7801c7bf06e2c6db77ad
SHA1

41506c723c844c468d8d6de1281975189d4169f3
SHA256

314a96bec40e818a9cd54f886b0fcf5e63b032d07aa46e19e98475789f6414f3
SHA512

73a7e9a657b1424a4c278e2ec792468d9c004bfcb817cf93aa3e67625c64fa8ded1252b02f5209a6047f51ec08932012626d9433b22a049107551d9b0ac21201
SSDEEP

3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIk1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNh1Ljo3c

Score

10^/10

oski discovery infostealer spyware stealer

Malware Config

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Oski family
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
2700	2376	WerFault.exe	29

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	2025-02-26_521708329e9c7801c7bf06e2c6db77ad_karagany_mafia.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2700	2376	2025-02-26_521708329e9c7801c7bf06e2c6db77ad_karagany_mafia.exe	33
PID 2376 wrote to memory of 2700	2376	2025-02-26_521708329e9c7801c7bf06e2c6db77ad_karagany_mafia.exe	33
PID 2376 wrote to memory of 2700	2376	2025-02-26_521708329e9c7801c7bf06e2c6db77ad_karagany_mafia.exe	33
PID 2376 wrote to memory of 2700	2376	2025-02-26_521708329e9c7801c7bf06e2c6db77ad_karagany_mafia.exe	33

C:\Users\Admin\AppData\Local\Temp\2025-02-26_521708329e9c7801c7bf06e2c6db77ad_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-26_521708329e9c7801c7bf06e2c6db77ad_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 752
  2⤵
  - Program crash
  PID:2700

Network

MITRE ATT&CK Enterprise v15

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

Windows 7 deprecation

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