oski | 53828926c375be5a7f6ec3bb0e535e30312f0cd3ca28089f6447c08e0aaaee1f

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

C2

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 2908 set thread context of 2496	2908	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	29

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2896	2496	WerFault.exe	29

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

Processes:

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.execc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

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

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

pid	Process
2908	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

pid	Process
2908	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.execc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2908 wrote to memory of 2496	2908	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	29
PID 2908 wrote to memory of 2496	2908	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	29
PID 2908 wrote to memory of 2496	2908	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	29
PID 2908 wrote to memory of 2496	2908	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	29
PID 2908 wrote to memory of 2496	2908	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	29
PID 2496 wrote to memory of 2896	2496	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	32
PID 2496 wrote to memory of 2896	2496	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	32
PID 2496 wrote to memory of 2896	2496	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	32
PID 2496 wrote to memory of 2896	2496	cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe	32

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:2908
- C:\Users\Admin\AppData\Local\Temp\cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cc4e4947dbf30c94a8e0613f7079b04d_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 768
    3⤵
    - Program crash
    PID:2896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2496-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2496-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2496-8-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2496-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2496-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2496-12-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2908-2-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2908-3-0x0000000000250000-0x0000000000257000-memory.dmp

Filesize
28KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads