oski | 53828926c375be5a7f6ec3bb0e535e30312f0cd3ca28089f6447c08e0aaaee1f

Analysis

max time kernel
136s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2024 05:37

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General

Target

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe
Size

256KB
MD5

cc4e4947dbf30c94a8e0613f7079b04d
SHA1

06aaaec0cf89c1a63018f4f8ac41fc087f50296d
SHA256

53828926c375be5a7f6ec3bb0e535e30312f0cd3ca28089f6447c08e0aaaee1f
SHA512

7838ac0a03084010bdaca92f4b5d794bb2cb35c076a46cc64fe3ca49b345ed05131e969621cc8173df55f7d9986a138217dd521145310e8d8631fe1180c8708d
SSDEEP

6144:iz63Iv8CkSxq4zc2cp4OEV2DcW3swsVqT:lhSxVIVEIkU

Score

10^/10

oski credential_access discovery infostealer spyware stealer

Malware Config

Extracted

Family

oski

hanxlas.ac.ug

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4420 set thread context of 4076	4420	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	85

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4600	4076	WerFault.exe	85

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

Processes:

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

pid	Process
4420	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

pid	Process
4420	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4420 wrote to memory of 4076	4420	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	85
PID 4420 wrote to memory of 4076	4420	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	85
PID 4420 wrote to memory of 4076	4420	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	85
PID 4420 wrote to memory of 4076	4420	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Users\Admin\AppData\Local\Temp\cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe"
  2⤵
  PID:4076
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4076 -s 1212
    3⤵
    - Program crash
    PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4076 -ip 4076
1⤵
PID:4404

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/4076-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4076-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4076-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4076-9-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4076-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4076-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4076-16-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4420-2-0x0000000077592000-0x0000000077593000-memory.dmp

Filesize
4KB

Download
memory/4420-3-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/4420-4-0x0000000000A50000-0x0000000000A57000-memory.dmp

Filesize
28KB

Download