oski | 3f411d2793695d14485890fb9f12d509923fdcf5a58b1965e348f6fbd7782e13

Analysis

max time kernel
148s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
07-05-2024 05:13

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe
Size

1.3MB
MD5

1f8f55f303e440e977b517b972ac869f
SHA1

8fb44a169b225d89e2081f8fbfc394b556256a50
SHA256

3f411d2793695d14485890fb9f12d509923fdcf5a58b1965e348f6fbd7782e13
SHA512

e8f8de31928300e5721809db1306d718bdacbfbbff6fb2de0e0db2f841bf8a45852bb5b97e90e1ff02f0cc3a600cfbd5db0e4c3959d808cb30c9f8ad5c36089a
SSDEEP

24576:pu6Jx3O0c+JY5UZ+XC0kGso/Waj9UTCbhOWHWYF:LI0c++OCvkGsUWaj9eYF

Score

10^/10

oski infostealer spyware stealer

Malware Config

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 4920 set thread context of 4400	4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3048	4400	WerFault.exe	83

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe
4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe
4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe
4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe
4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 4400	4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe	83
PID 4920 wrote to memory of 4400	4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe	83
PID 4920 wrote to memory of 4400	4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe	83
PID 4920 wrote to memory of 4400	4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe	83
PID 4920 wrote to memory of 4400	4920	1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Users\Admin\AppData\Local\Temp\1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\1f8f55f303e440e977b517b972ac869f_JaffaCakes118.exe"
  2⤵
  PID:4400
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 1224
    3⤵
    - Program crash
    PID:3048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 4400 -ip 4400
1⤵
PID:948

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

Loading Replay Monitor...

Downloads

memory/4400-2-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4400-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4920-0-0x00000000021F0000-0x000000000221D000-memory.dmp

Filesize
180KB

Download
memory/4920-7-0x0000000002220000-0x0000000002221000-memory.dmp

Filesize
4KB

Download