oski | c0a28f12669aa6c5b1846e0e00a85806281911ff3c41817d6b912ac2ca9d7cf5

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-02-2024 16:45

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General

Target

a6d680a1f920defdc3723fbf65b27924.exe
Size

914KB
MD5

a6d680a1f920defdc3723fbf65b27924
SHA1

b9aab4c0e7164c1a05aa61a2f69cfa32be802607
SHA256

c0a28f12669aa6c5b1846e0e00a85806281911ff3c41817d6b912ac2ca9d7cf5
SHA512

fe3f2d47a001bd35704ecaeb44ae02a60542df009e5bc848e3e0a294a06e7a9bf0e8f16b7a41169fe5060f09e09247a1902e8ff73c95499c41bc6d9308e144be
SSDEEP

12288:Hm40TIcHHXUMcg+H1twu8msICrwtBiq8uWutD6sOAeCP2Dc9F3nC0Py3gAhw:4hHHX9f4YwNi8W2yAeCPP

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 752 set thread context of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3588	1316	WerFault.exe	81

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81
PID 752 wrote to memory of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81
PID 752 wrote to memory of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81
PID 752 wrote to memory of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81
PID 752 wrote to memory of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81
PID 752 wrote to memory of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81
PID 752 wrote to memory of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81
PID 752 wrote to memory of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81
PID 752 wrote to memory of 1316	752	a6d680a1f920defdc3723fbf65b27924.exe	81

C:\Users\Admin\AppData\Local\Temp\a6d680a1f920defdc3723fbf65b27924.exe
"C:\Users\Admin\AppData\Local\Temp\a6d680a1f920defdc3723fbf65b27924.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:752
- C:\Users\Admin\AppData\Local\Temp\a6d680a1f920defdc3723fbf65b27924.exe
  "C:\Users\Admin\AppData\Local\Temp\a6d680a1f920defdc3723fbf65b27924.exe"
  2⤵
  PID:1316
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1316 -s 1296
    3⤵
    - Program crash
    PID:3588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1316 -ip 1316
1⤵
PID:1504

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/752-8-0x0000000005440000-0x0000000005458000-memory.dmp

Filesize
96KB

Download
memory/752-7-0x0000000005150000-0x00000000051A6000-memory.dmp

Filesize
344KB

Download
memory/752-0-0x00000000004A0000-0x000000000058A000-memory.dmp

Filesize
936KB

Download
memory/752-3-0x00000000055C0000-0x0000000005B64000-memory.dmp

Filesize
5.6MB

Download
memory/752-4-0x00000000050B0000-0x0000000005142000-memory.dmp

Filesize
584KB

Download
memory/752-5-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/752-6-0x0000000005020000-0x000000000502A000-memory.dmp

Filesize
40KB

Download
memory/752-18-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/752-2-0x0000000004F70000-0x000000000500C000-memory.dmp

Filesize
624KB

Download
memory/752-1-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/752-11-0x0000000008250000-0x00000000082F0000-memory.dmp

Filesize
640KB

Download
memory/752-10-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/752-12-0x000000000A9E0000-0x000000000AA18000-memory.dmp

Filesize
224KB

Download
memory/752-9-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/1316-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1316-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1316-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1316-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1316-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download