oski | d985cb2261727cddb2db12eaea8ece3fea24d199622cc30d317a6aeacd50d930

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 03:07

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General

Target

JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe
Size

248KB
MD5

d94afd09f7fd6acfab19c11d63d47cc0
SHA1

90ec971ee903cda86f25c43d655bcf2af16c822a
SHA256

d985cb2261727cddb2db12eaea8ece3fea24d199622cc30d317a6aeacd50d930
SHA512

b95c749740f41e1bccbda65ce95d728feaf3a7288f25b4b3f861a28d76331ecca25095ce548b6a6f631f298cc92c14bc6d296ca18849a497dbf0ef5ccfc25599
SSDEEP

6144:s7AFPOns551dxzAUdYKHWqLHWm00RLqp0axjCN:saj51ddxdq6NM2axmN

Score

10^/10

oski discovery infostealer spyware stealer

Malware Config

Extracted

Family

oski

scarsa.ac.ug

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Oski family
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 2624 set thread context of 1548	2624	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2960	1548	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 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	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2624	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2624	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 1548	2624	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	30
PID 2624 wrote to memory of 1548	2624	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	30
PID 2624 wrote to memory of 1548	2624	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	30
PID 2624 wrote to memory of 1548	2624	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	30
PID 2624 wrote to memory of 1548	2624	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	30
PID 1548 wrote to memory of 2960	1548	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	34
PID 1548 wrote to memory of 2960	1548	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	34
PID 1548 wrote to memory of 2960	1548	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	34
PID 1548 wrote to memory of 2960	1548	JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d94afd09f7fd6acfab19c11d63d47cc0.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1548
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 768
    3⤵
    - Program crash
    PID:2960

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

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Downloads

memory/1548-4-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1548-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1548-9-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1548-10-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1548-11-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1548-13-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1548-16-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2624-2-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2624-3-0x0000000000250000-0x0000000000257000-memory.dmp

Filesize
28KB

Download
memory/2624-6-0x0000000000250000-0x0000000000257000-memory.dmp

Filesize
28KB

Download