oski | 652ff7f52f0e2d6bdd5a0f36f4b24c4dafc8aab7d5236db91b77267650cdb140

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

C2

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 208 set thread context of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103

Program crash 1 IoCs

pid	pid_target	Process	procid_target
8	2156	WerFault.exe	103

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe
208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 2440	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	102
PID 208 wrote to memory of 2440	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	102
PID 208 wrote to memory of 2440	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	102
PID 208 wrote to memory of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103
PID 208 wrote to memory of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103
PID 208 wrote to memory of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103
PID 208 wrote to memory of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103
PID 208 wrote to memory of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103
PID 208 wrote to memory of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103
PID 208 wrote to memory of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103
PID 208 wrote to memory of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103
PID 208 wrote to memory of 2156	208	958327f65e87da599ad05ad82897f730_JaffaCakes118.exe	103

C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:208
- C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe"
  2⤵
  PID:2440
- C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\958327f65e87da599ad05ad82897f730_JaffaCakes118.exe"
  2⤵
  PID:2156
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 1296
    3⤵
    - Program crash
    PID:8

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2156 -ip 2156
1⤵
PID:3088

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1332 --field-trial-handle=2268,i,8796662530135712346,11409037572378858775,262144 --variations-seed-version /prefetch:8
1⤵
PID:3384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/208-8-0x00000000059B0000-0x00000000059C0000-memory.dmp

Filesize
64KB

Download
memory/208-4-0x00000000059B0000-0x00000000059C0000-memory.dmp

Filesize
64KB

Download
memory/208-1-0x00000000751E0000-0x0000000075990000-memory.dmp

Filesize
7.7MB

Download
memory/208-3-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/208-9-0x0000000007150000-0x00000000071EC000-memory.dmp

Filesize
624KB

Download
memory/208-5-0x0000000005810000-0x000000000581A000-memory.dmp

Filesize
40KB

Download
memory/208-6-0x0000000005D20000-0x0000000005D38000-memory.dmp

Filesize
96KB

Download
memory/208-10-0x00000000072A0000-0x00000000072FC000-memory.dmp

Filesize
368KB

Download
memory/208-2-0x0000000005D50000-0x00000000062F4000-memory.dmp

Filesize
5.6MB

Download
memory/208-0-0x0000000000EF0000-0x0000000000F8C000-memory.dmp

Filesize
624KB

Download
memory/208-7-0x00000000751E0000-0x0000000075990000-memory.dmp

Filesize
7.7MB

Download
memory/208-16-0x00000000751E0000-0x0000000075990000-memory.dmp

Filesize
7.7MB

Download
memory/2156-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2156-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2156-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2156-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2156-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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