oski | 1ace37875191bb1b5cf5c0c2a566dbc1894c8931f49e4f41bfd9c604e281edd0

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12-03-2024 14:25

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General

Target

c397c65e36e5f74b61bb8c7f442b445a.exe
Size

248KB
MD5

c397c65e36e5f74b61bb8c7f442b445a
SHA1

cc4d1dce5399acbc92d525ee8e055b6127e222c1
SHA256

1ace37875191bb1b5cf5c0c2a566dbc1894c8931f49e4f41bfd9c604e281edd0
SHA512

2d5d328402ecfc18145649f7e4e286aa2f07241a95777ea8444a33a3d9250f3acdbac69ea6ddcf6600eac0b047b57dbec21ec0bb371fabcdb56941b7270cc41a
SSDEEP

6144:ZekDF04qRSHSwWUbIr7kpuSP3jwg0eAVFk8Epg7gBuA:ZxF0ZSFgQpzPTwg0b5uOgN

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

mazooyaar.ac.ug

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
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1356 set thread context of 1328	1356	c397c65e36e5f74b61bb8c7f442b445a.exe	95

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4604	1328	WerFault.exe	95

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1356	c397c65e36e5f74b61bb8c7f442b445a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1356	c397c65e36e5f74b61bb8c7f442b445a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 1328	1356	c397c65e36e5f74b61bb8c7f442b445a.exe	95
PID 1356 wrote to memory of 1328	1356	c397c65e36e5f74b61bb8c7f442b445a.exe	95
PID 1356 wrote to memory of 1328	1356	c397c65e36e5f74b61bb8c7f442b445a.exe	95
PID 1356 wrote to memory of 1328	1356	c397c65e36e5f74b61bb8c7f442b445a.exe	95

C:\Users\Admin\AppData\Local\Temp\c397c65e36e5f74b61bb8c7f442b445a.exe
"C:\Users\Admin\AppData\Local\Temp\c397c65e36e5f74b61bb8c7f442b445a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Users\Admin\AppData\Local\Temp\c397c65e36e5f74b61bb8c7f442b445a.exe
  "C:\Users\Admin\AppData\Local\Temp\c397c65e36e5f74b61bb8c7f442b445a.exe"
  2⤵
  PID:1328
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1328 -s 1336
    3⤵
    - Program crash
    PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1328 -ip 1328
1⤵
PID:4016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1328-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-9-0x0000000077052000-0x0000000077053000-memory.dmp

Filesize
4KB

Download
memory/1328-11-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download
memory/1328-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-16-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1356-2-0x0000000077052000-0x0000000077053000-memory.dmp

Filesize
4KB

Download
memory/1356-3-0x0000000000BA0000-0x0000000000BA1000-memory.dmp

Filesize
4KB

Download
memory/1356-4-0x00000000021F0000-0x00000000021F7000-memory.dmp

Filesize
28KB

Download
memory/1356-10-0x00000000021F0000-0x00000000021F7000-memory.dmp

Filesize
28KB

Download