oski | 872da01aaf57efa2f1cdd7f39da1f903294e62e7641debe90c0c45a6b2bb90dd

Analysis

max time kernel
38s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03-02-2023 08:20

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General

Target

dfe5049756f130f2559746da26d1a7dce785b0099a715b55d3cc6f31361c96c0.exe
Size

200KB
MD5

28682416fd765969c4d42c76d8f59d69
SHA1

723de57b27d0b285ea5003907eb2c44159ecef31
SHA256

dfe5049756f130f2559746da26d1a7dce785b0099a715b55d3cc6f31361c96c0
SHA512

acaa3ffdb154d55137de75c5005d9467a8fc0e02662240b80d6cd5546a03a59e49db85cf41e1dae33f606620058a2a043d1c7966394a5f86e98b8d90143c2fca
SSDEEP

3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIM1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pN51Ljo3c

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
T1081

Program crash 1 IoCs

pid	pid_target	Process	procid_target
588	1096	WerFault.exe	18

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 588	1096	dfe5049756f130f2559746da26d1a7dce785b0099a715b55d3cc6f31361c96c0.exe	28
PID 1096 wrote to memory of 588	1096	dfe5049756f130f2559746da26d1a7dce785b0099a715b55d3cc6f31361c96c0.exe	28
PID 1096 wrote to memory of 588	1096	dfe5049756f130f2559746da26d1a7dce785b0099a715b55d3cc6f31361c96c0.exe	28
PID 1096 wrote to memory of 588	1096	dfe5049756f130f2559746da26d1a7dce785b0099a715b55d3cc6f31361c96c0.exe	28

C:\Users\Admin\AppData\Local\Temp\dfe5049756f130f2559746da26d1a7dce785b0099a715b55d3cc6f31361c96c0.exe
"C:\Users\Admin\AppData\Local\Temp\dfe5049756f130f2559746da26d1a7dce785b0099a715b55d3cc6f31361c96c0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1096 -s 1000
  2⤵
  - Program crash
  PID:588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1096-54-0x00000000768A1000-0x00000000768A3000-memory.dmp

Filesize
8KB

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