oski | a22f28ef4f876cd230e6f5137c3baf87ad63b6bbfa2909c762a358bc75699f5a

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
18-07-2024 04:15

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General

Target

561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe
Size

404KB
MD5

561b47e434227876ba3657cb681bb31b
SHA1

c9fb08a81392154fea47389b068cc2c803f229ce
SHA256

a22f28ef4f876cd230e6f5137c3baf87ad63b6bbfa2909c762a358bc75699f5a
SHA512

423e8d34f1bccad81a3f5c445e448a48c89ba4269a97954ab5b016fd7108e8214afe0b031a4244702f7ef30f94bf0de84807735446c25c13ce250b5cd168a81a
SSDEEP

12288:kRuSTDg/kYLfXF62VBTPu7FjpwucdEGe2Ax:kRzT8MeVkFjp1cReF

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

maurizio.ug

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
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

description	pid	Process	procid_target
PID 1084 set thread context of 3800	1084	561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe	94

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1816	3800	WerFault.exe	94

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1084	561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1084	561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1084 wrote to memory of 3800	1084	561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe	94
PID 1084 wrote to memory of 3800	1084	561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe	94
PID 1084 wrote to memory of 3800	1084	561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe	94
PID 1084 wrote to memory of 3800	1084	561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe	94

C:\Users\Admin\AppData\Local\Temp\561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1084
- C:\Users\Admin\AppData\Local\Temp\561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\561b47e434227876ba3657cb681bb31b_JaffaCakes118.exe"
  2⤵
  PID:3800
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 1300
    3⤵
    - Program crash
    PID:1816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3800 -ip 3800
1⤵
PID:2164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1084-2-0x00000000777D2000-0x00000000777D3000-memory.dmp

Filesize
4KB

Download
memory/1084-3-0x0000000000A70000-0x0000000000A71000-memory.dmp

Filesize
4KB

Download
memory/1084-4-0x0000000002330000-0x0000000002336000-memory.dmp

Filesize
24KB

Download
memory/3800-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3800-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3800-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3800-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3800-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3800-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3800-15-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download