oski | f5abfba489bfcef9819f0ca20cd54efc779d6091f6462b6083c363636739f41b

Analysis

max time kernel
92s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 13:50

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General

Target

8c7c82469de5aacc1025699b79718847.exe
Size

1001KB
MD5

8c7c82469de5aacc1025699b79718847
SHA1

46d38208bc64db83dc306d05870675f3b4208389
SHA256

f5abfba489bfcef9819f0ca20cd54efc779d6091f6462b6083c363636739f41b
SHA512

f92280edc4c212c08e93e9a47a0da5036550d899e4f8db75ef4de5bfb39ac9a9e87a8e166fb53af5ca1b3ef4755c83526912735fd07e5c74011e5a8d721c46f2
SSDEEP

12288:3d5HEJbjJEKY+WddGJHbhfqO+sGxVgtdsTe6czZuGmSsPJcEljysDc9F3nC0Py3x:9Nm9rZP6MQ/Rq

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

kckark.xyz

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 4756 set thread context of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4876	4872	WerFault.exe	97

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4756	8c7c82469de5aacc1025699b79718847.exe
4756	8c7c82469de5aacc1025699b79718847.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4756	8c7c82469de5aacc1025699b79718847.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 1996	4756	8c7c82469de5aacc1025699b79718847.exe	96
PID 4756 wrote to memory of 1996	4756	8c7c82469de5aacc1025699b79718847.exe	96
PID 4756 wrote to memory of 1996	4756	8c7c82469de5aacc1025699b79718847.exe	96
PID 4756 wrote to memory of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97
PID 4756 wrote to memory of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97
PID 4756 wrote to memory of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97
PID 4756 wrote to memory of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97
PID 4756 wrote to memory of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97
PID 4756 wrote to memory of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97
PID 4756 wrote to memory of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97
PID 4756 wrote to memory of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97
PID 4756 wrote to memory of 4872	4756	8c7c82469de5aacc1025699b79718847.exe	97

C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe
"C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4756
- C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe
  "C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe"
  2⤵
  PID:1996
- C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe
  "C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe"
  2⤵
  PID:4872
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 1284
    3⤵
    - Program crash
    PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 4872 -ip 4872
1⤵
PID:376

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/4756-8-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4756-2-0x0000000005BA0000-0x0000000006144000-memory.dmp

Filesize
5.6MB

Download
memory/4756-9-0x0000000005840000-0x0000000005850000-memory.dmp

Filesize
64KB

Download
memory/4756-10-0x0000000006EE0000-0x0000000006F80000-memory.dmp

Filesize
640KB

Download
memory/4756-4-0x00000000055F0000-0x000000000568C000-memory.dmp

Filesize
624KB

Download
memory/4756-5-0x0000000005840000-0x0000000005850000-memory.dmp

Filesize
64KB

Download
memory/4756-6-0x00000000054C0000-0x00000000054CA000-memory.dmp

Filesize
40KB

Download
memory/4756-7-0x00000000056F0000-0x0000000005708000-memory.dmp

Filesize
96KB

Download
memory/4756-0-0x00000000009E0000-0x0000000000AE0000-memory.dmp

Filesize
1024KB

Download
memory/4756-1-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4756-3-0x00000000054E0000-0x0000000005572000-memory.dmp

Filesize
584KB

Download
memory/4756-11-0x0000000006B60000-0x0000000006B98000-memory.dmp

Filesize
224KB

Download
memory/4756-17-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4872-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4872-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4872-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4872-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4872-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download