oski | 1ef805d037a3e6d5667c5f09316d85231d217c452c0759fd16ccd34f75e3c22c

General

Target

753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
Size

694KB
MD5

753f316cffd68bd3c5161c8387a770b4
SHA1

96a99cc3f60aaa86fd951eecdc22d0b6117ccbfa
SHA256

1ef805d037a3e6d5667c5f09316d85231d217c452c0759fd16ccd34f75e3c22c
SHA512

21f3c2ca3f150d0dd51803707b9d0052ec6e2628cd5379f4d632c54ab2b2800a3b390802af097db6e19dc1b0dae279994a2a245c7cc95bfa45b2e8150473af02
SSDEEP

12288:FleNG/r9AP+CpkUoZUpgzMtv/ZAgEXF2/cpurmcYv2tasGHW:+k/ntRKpgotv/6Xl8AutasoW

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:

753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe

description	pid	process	target process
PID 2876 set thread context of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2384 2100 WerFault.exe 753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe

pid	pid_target	process	target process
2384	2100	WerFault.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe

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:

753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe

description	pid	process	target process
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2876 wrote to memory of 2100	2876	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
PID 2100 wrote to memory of 2384	2100	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	WerFault.exe
PID 2100 wrote to memory of 2384	2100	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	WerFault.exe
PID 2100 wrote to memory of 2384	2100	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	WerFault.exe
PID 2100 wrote to memory of 2384	2100	753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876

C:\Users\Admin\AppData\Local\Temp\753f316cffd68bd3c5161c8387a770b4_JaffaCakes118.exe
"{path}"
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 760
3⤵
- Program crash
PID:2384

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2100-8-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2100-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2100-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2100-11-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2100-14-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2100-16-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2100-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2100-7-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2100-20-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2100-9-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2876-5-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-3-0x0000000000320000-0x0000000000328000-memory.dmp

Filesize
32KB

Download
memory/2876-0-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/2876-2-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-6-0x0000000005EB0000-0x0000000005F42000-memory.dmp

Filesize
584KB

Download
memory/2876-1-0x0000000000A10000-0x0000000000AC4000-memory.dmp

Filesize
720KB

Download
memory/2876-18-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-4-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads