oski | ab1980665f6dc02ef0633c7d1726f65b8e17b61df46112029f19dc98f84014af

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 13:53

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General

Target

2024-09-19_a1fba653486ce82f8413ad14676d3a8e_mafia.exe
Size

182KB
MD5

a1fba653486ce82f8413ad14676d3a8e
SHA1

260bcf4a29cdac7a15dd0a32b49822bde4c83011
SHA256

ab1980665f6dc02ef0633c7d1726f65b8e17b61df46112029f19dc98f84014af
SHA512

ea318549af1caf88c8789881360a8718256b9752642be31ac89cbffb6cc6406bf9a99779894208e117954b562b4a0754433e760b37bfb98c5a3540037d71c3b9
SSDEEP

3072:Cu32xlnAm9orZc9cHSBKz5B1clewlcUrXt54EnBm0QeWvu:9mTwSBKzL14hvIEA0Qeau

Score

10^/10

oski credential_access discovery infostealer spyware stealer

Malware Config

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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

pid	pid_target	Process	procid_target
2628	2256	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-19_a1fba653486ce82f8413ad14676d3a8e_mafia.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2628	2256	2024-09-19_a1fba653486ce82f8413ad14676d3a8e_mafia.exe	32
PID 2256 wrote to memory of 2628	2256	2024-09-19_a1fba653486ce82f8413ad14676d3a8e_mafia.exe	32
PID 2256 wrote to memory of 2628	2256	2024-09-19_a1fba653486ce82f8413ad14676d3a8e_mafia.exe	32
PID 2256 wrote to memory of 2628	2256	2024-09-19_a1fba653486ce82f8413ad14676d3a8e_mafia.exe	32

C:\Users\Admin\AppData\Local\Temp\2024-09-19_a1fba653486ce82f8413ad14676d3a8e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_a1fba653486ce82f8413ad14676d3a8e_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2256 -s 764
  2⤵
  - Program crash
  PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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