oski | a27d9f14392c00a3f786949ad7f9317c835dd564d2709b20f1ff2ea68fe46390

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13-01-2024 06:58

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General

Target

5846831cfd75a1d686963ae3c628e00e.exe
Size

1.2MB
MD5

5846831cfd75a1d686963ae3c628e00e
SHA1

d9782b477828369ce17e2ee95b51ecde7a55452f
SHA256

a27d9f14392c00a3f786949ad7f9317c835dd564d2709b20f1ff2ea68fe46390
SHA512

e437f5f33f5e20683ebd84898494618241c1489b94e445e9d69d330b93649641caf0b6997d160060acbc01a28776a6ac4a4b33b28c70278860fdc73d821f8743
SSDEEP

24576:Eu6Jx3O0c+JY5UZ+XC0kGso/WaplzLTSjTAWY+:+I0c++OCvkGsUWapsY+

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 3888 set thread context of 1788	3888	5846831cfd75a1d686963ae3c628e00e.exe	92

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3524	1788	WerFault.exe	92

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3888	5846831cfd75a1d686963ae3c628e00e.exe
3888	5846831cfd75a1d686963ae3c628e00e.exe
3888	5846831cfd75a1d686963ae3c628e00e.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3888	5846831cfd75a1d686963ae3c628e00e.exe
3888	5846831cfd75a1d686963ae3c628e00e.exe
3888	5846831cfd75a1d686963ae3c628e00e.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 1788	3888	5846831cfd75a1d686963ae3c628e00e.exe	92
PID 3888 wrote to memory of 1788	3888	5846831cfd75a1d686963ae3c628e00e.exe	92
PID 3888 wrote to memory of 1788	3888	5846831cfd75a1d686963ae3c628e00e.exe	92
PID 3888 wrote to memory of 1788	3888	5846831cfd75a1d686963ae3c628e00e.exe	92
PID 3888 wrote to memory of 1788	3888	5846831cfd75a1d686963ae3c628e00e.exe	92

C:\Users\Admin\AppData\Local\Temp\5846831cfd75a1d686963ae3c628e00e.exe
"C:\Users\Admin\AppData\Local\Temp\5846831cfd75a1d686963ae3c628e00e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3888
- C:\Users\Admin\AppData\Local\Temp\5846831cfd75a1d686963ae3c628e00e.exe
  "C:\Users\Admin\AppData\Local\Temp\5846831cfd75a1d686963ae3c628e00e.exe"
  2⤵
  PID:1788
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 1212
    3⤵
    - Program crash
    PID:3524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1788 -ip 1788
1⤵
PID:2688

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/1788-1-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1788-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3888-0-0x0000000003EC0000-0x0000000003EED000-memory.dmp

Filesize
180KB

Download
memory/3888-2-0x0000000003EF0000-0x0000000003EF1000-memory.dmp

Filesize
4KB

Download