oski | 3bd85c9e47dd89f20f5ae78807a8e98288195c70ee6250e0e86583c672685119

Analysis

max time kernel
13s
max time network
116s
platform
windows10_x64
resource
win10v20210410
submitted
24-07-2021 22:42

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General

Target

884c97781aefe7f3f8aef45d44fa9340.exe
Size

200KB
MD5

884c97781aefe7f3f8aef45d44fa9340
SHA1

4d340d7a615e07b8d2c9d27e9d94862ea40bb577
SHA256

3bd85c9e47dd89f20f5ae78807a8e98288195c70ee6250e0e86583c672685119
SHA512

4f30c56596877c7b7fbd217cc03094d8e3bd5929d5aa52816d90414d4734523c7f61310cf15105dd2130c34f3dcf5799810dda4039f850af6d486910cf83d466

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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4060 1016 WerFault.exe 884c97781aefe7f3f8aef45d44fa9340.exe

pid	pid_target	process	target process
4060	1016	WerFault.exe	884c97781aefe7f3f8aef45d44fa9340.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe
4060	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4060 WerFault.exe
Token: SeBackupPrivilege 4060 WerFault.exe
Token: SeDebugPrivilege 4060 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4060	WerFault.exe
Token: SeBackupPrivilege	4060	WerFault.exe
Token: SeDebugPrivilege	4060	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\884c97781aefe7f3f8aef45d44fa9340.exe
"C:\Users\Admin\AppData\Local\Temp\884c97781aefe7f3f8aef45d44fa9340.exe"
1⤵
PID:1016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1016 -s 1232
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4060

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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