oski | a34e7c63da647c394b8becde55d6e87bc34e2c934c89b7f23484747a3598fb4c

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-10-2024 15:08

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General

Target

4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe
Size

732KB
MD5

4d838fd7586e75e908483b1807bc29a6
SHA1

ab5e4e82d68462daec9ff1dc0fa81380d8991df0
SHA256

a34e7c63da647c394b8becde55d6e87bc34e2c934c89b7f23484747a3598fb4c
SHA512

df7980b4b9d058ef368c7c93069dcb5a8c689f755d0ca15a355bee5860cd167dcda1a3afbbf7ec9ab46f96690d6d7ee161f660219f049cc88c7841daef88c5fa
SSDEEP

12288:qQE4Ud4N5tA2P9qRLOhdKeE2gawV77yQ0wc0HK7zVRAtep79CqX8QXTfFteLSgQ3:T0Khd9g10wy51xCqXn3eWn+kGk85Upvj

Score

10^/10

oski discovery infostealer spyware stealer

Malware Config

Extracted

Family

oski

cabvui.xyz

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2208	2616	WerFault.exe	105

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	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105
PID 5012 wrote to memory of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105
PID 5012 wrote to memory of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105
PID 5012 wrote to memory of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105
PID 5012 wrote to memory of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105
PID 5012 wrote to memory of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105
PID 5012 wrote to memory of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105
PID 5012 wrote to memory of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105
PID 5012 wrote to memory of 2616	5012	4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe	105

C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6_JaffaCakes118.exe"
  2⤵
  PID:2616
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2616 -s 1316
    3⤵
    - Program crash
    PID:2208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2616 -ip 2616
1⤵
PID:2864

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

Replay Monitor

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Downloads

memory/2616-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5012-8-0x0000000008240000-0x0000000008256000-memory.dmp

Filesize
88KB

Download
memory/5012-12-0x000000000AAD0000-0x000000000AB08000-memory.dmp

Filesize
224KB

Download
memory/5012-7-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/5012-0-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

Filesize
4KB

Download
memory/5012-9-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

Filesize
4KB

Download
memory/5012-10-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/5012-11-0x0000000008380000-0x0000000008422000-memory.dmp

Filesize
648KB

Download
memory/5012-6-0x0000000005790000-0x00000000057E6000-memory.dmp

Filesize
344KB

Download
memory/5012-5-0x00000000054E0000-0x00000000054EA000-memory.dmp

Filesize
40KB

Download
memory/5012-4-0x00000000055A0000-0x0000000005632000-memory.dmp

Filesize
584KB

Download
memory/5012-3-0x0000000005B50000-0x00000000060F4000-memory.dmp

Filesize
5.6MB

Download
memory/5012-2-0x0000000005500000-0x000000000559C000-memory.dmp

Filesize
624KB

Download
memory/5012-18-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/5012-1-0x0000000000BB0000-0x0000000000C6C000-memory.dmp

Filesize
752KB

Download