oski | c0fa9b79d5ff08641d2490f2942b205120e157e790bfb7540aaed7a0e69a1d49

Analysis

max time kernel
16s
max time network
112s
platform
windows10_x64
resource
win10v20210408
submitted
22-07-2021 07:45

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General

Target

c0fa9b79d5ff08641d2490f2942b205120e157e790bfb7540aaed7a0e69a1d49.exe
Size

200KB
MD5

9c75d0a696028660f0f7333c2d3f5d8a
SHA1

3a3f86412b3d48bf9bf4f73fac3fc0d6c2a49293
SHA256

c0fa9b79d5ff08641d2490f2942b205120e157e790bfb7540aaed7a0e69a1d49
SHA512

58b1494fb5455e761ca99fdc80c6b648f23d1183355c0742ceb134bd0ac77a37385e736014319a1f801644ea741fab1ba9babb7b4323660f55870263c33bb000

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

1240 532 WerFault.exe c0fa9b79d5ff08641d2490f2942b205120e157e790bfb7540aaed7a0e69a1d49.exe

pid	pid_target	process	target process
1240	532	WerFault.exe	c0fa9b79d5ff08641d2490f2942b205120e157e790bfb7540aaed7a0e69a1d49.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe
1240	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1240 WerFault.exe
Token: SeBackupPrivilege 1240 WerFault.exe
Token: SeDebugPrivilege 1240 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	1240	WerFault.exe
Token: SeBackupPrivilege	1240	WerFault.exe
Token: SeDebugPrivilege	1240	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\c0fa9b79d5ff08641d2490f2942b205120e157e790bfb7540aaed7a0e69a1d49.exe
"C:\Users\Admin\AppData\Local\Temp\c0fa9b79d5ff08641d2490f2942b205120e157e790bfb7540aaed7a0e69a1d49.exe"
1⤵
PID:532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 532 -s 1176
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1240

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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