oski | 652ff7f52f0e2d6bdd5a0f36f4b24c4dafc8aab7d5236db91b77267650cdb140

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-04-2024 19:43

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General

Target

958327f65e87da599ad05ad82897f730_JaffaCakes118.exe
Size

597KB
MD5

958327f65e87da599ad05ad82897f730
SHA1

3bf2631dd0877733ec2a005b7de033bb468fb2ca
SHA256

652ff7f52f0e2d6bdd5a0f36f4b24c4dafc8aab7d5236db91b77267650cdb140
SHA512

0c6a8422f13f9205186d5c529fcc5ab9293a4c77a3a2d7602dca2748ace7684f8a5d4f739cb073de83fcd285fe187d39fb96d80360ec15de9c1615afb8f450cb
SSDEEP

12288:ShvSUOwrXUH/l+O+Z2HNdjIde1148gsGBMvo0:6KU7Efl+O+Z2HN31m8NG2w

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

chrisproperties.xyz

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
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
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1184 set thread context of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2724	2568	WerFault.exe	30

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 1184 wrote to memory of 2568	1184	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	30
PID 2568 wrote to memory of 2724	2568	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	32
PID 2568 wrote to memory of 2724	2568	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	32
PID 2568 wrote to memory of 2724	2568	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	32
PID 2568 wrote to memory of 2724	2568	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2568
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 876
    3⤵
    - Program crash
    PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1184-0-0x0000000001300000-0x000000000139C000-memory.dmp

Filesize
624KB

Download
memory/1184-1-0x0000000074E40000-0x000000007552E000-memory.dmp

Filesize
6.9MB

Download
memory/1184-2-0x00000000012C0000-0x0000000001300000-memory.dmp

Filesize
256KB

Download
memory/1184-3-0x00000000004B0000-0x00000000004C8000-memory.dmp

Filesize
96KB

Download
memory/1184-4-0x0000000074E40000-0x000000007552E000-memory.dmp

Filesize
6.9MB

Download
memory/1184-5-0x00000000012C0000-0x0000000001300000-memory.dmp

Filesize
256KB

Download
memory/1184-6-0x00000000051A0000-0x00000000051FC000-memory.dmp

Filesize
368KB

Download
memory/1184-22-0x0000000074E40000-0x000000007552E000-memory.dmp

Filesize
6.9MB

Download
memory/2568-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download