oski | b008e6b92de9b7d2e18fe2712c1c0f2d86fbe86e70093e4c54c490161818992c

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
06-08-2023 02:01

Target

HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe
Size

200KB
MD5

b40a86d86b0b2eb794da2090b8ea1535
SHA1

4d059b2cd846cad3cb1f53447bd5d14a2e648480
SHA256

b008e6b92de9b7d2e18fe2712c1c0f2d86fbe86e70093e4c54c490161818992c
SHA512

5e0f4dd97d2922683a7947730212813afbd7cb48f09929590dbbf5946251b15e3071fd9e3f45d78647fbc101be4f1fe7b9b1fb5a887f38df8f90b9abb2725ae8
SSDEEP

3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIE1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNt1Ljo3c

Score

10^/10

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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2932 2512 WerFault.exe HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe

pid	pid_target	process	target process
2932	2512	WerFault.exe	HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe

description	pid	process	target process
PID 2512 wrote to memory of 2932	2512	HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe	WerFault.exe
PID 2512 wrote to memory of 2932	2512	HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe	WerFault.exe
PID 2512 wrote to memory of 2932	2512	HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe	WerFault.exe
PID 2512 wrote to memory of 2932	2512	HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe
"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-PSW.Win32.Vidar.gen-b008e6b92de9b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 796
2⤵
- Program crash
PID:2932

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

Credentials In Files

Discovery

Lateral Movement

Collection

Data from Local System

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

C:\ProgramData\msvcp140.dll
Filesize
153B

MD5
ad6c7bb3ad65961e7db70eb6862ee7e9

SHA1
3a8850398558c4fe508e580e44a8502ec84e8bfb

SHA256
0decea22d408383564ddb8d5e4541ec377a1b50d6ddd6a5cbdec4346e27d2d7b

SHA512
efe589d2c8f0a9f42e2a470c39d6cef54e418001b568fc77d7177527db655240f39f777fce4be471c93c53bd7865860e5671c261aa3165d9fbee5944712578f3

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