oski | fd16c60e634e807f6bbb7c3e6e12a4231b7b34851eb98d6da2f178b6125c536f

Analysis

max time kernel
115s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2024 05:45

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General

Target

3c0aae14c733b8f3b5f15d3f066e343d.exe
Size

1.1MB
MD5

3c0aae14c733b8f3b5f15d3f066e343d
SHA1

a75840830a4a95f779809f4d52ad7328de9e4c6f
SHA256

fd16c60e634e807f6bbb7c3e6e12a4231b7b34851eb98d6da2f178b6125c536f
SHA512

d97683d0a10a9e4131e0212e0d030bac4237402704da24b20997ae48abbf71d04a3d703d1b2b8c79875d15f0c16ba8868888a08b26eaaac96454175a99fa3700
SSDEEP

12288:O/8XZuGwgtGb74uChgDCe83dHY3XJEkKBiy8CalBmNWab9UXvBJZQ63GvIZDgQ:O/g5g74nGDCJxWXSfBihmECSfBJ

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 1748 set thread context of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2112	1100	WerFault.exe	103

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103
PID 1748 wrote to memory of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103
PID 1748 wrote to memory of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103
PID 1748 wrote to memory of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103
PID 1748 wrote to memory of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103
PID 1748 wrote to memory of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103
PID 1748 wrote to memory of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103
PID 1748 wrote to memory of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103
PID 1748 wrote to memory of 1100	1748	3c0aae14c733b8f3b5f15d3f066e343d.exe	103

C:\Users\Admin\AppData\Local\Temp\3c0aae14c733b8f3b5f15d3f066e343d.exe
"C:\Users\Admin\AppData\Local\Temp\3c0aae14c733b8f3b5f15d3f066e343d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Users\Admin\AppData\Local\Temp\3c0aae14c733b8f3b5f15d3f066e343d.exe
  "C:\Users\Admin\AppData\Local\Temp\3c0aae14c733b8f3b5f15d3f066e343d.exe"
  2⤵
  PID:1100
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1100 -s 1324
    3⤵
    - Program crash
    PID:2112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1100 -ip 1100
1⤵
PID:2348

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/1100-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1100-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1100-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1100-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1100-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1748-8-0x0000000004E10000-0x0000000004E2E000-memory.dmp

Filesize
120KB

Download
memory/1748-12-0x000000000A560000-0x000000000A598000-memory.dmp

Filesize
224KB

Download
memory/1748-1-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/1748-0-0x0000000000900000-0x0000000000A18000-memory.dmp

Filesize
1.1MB

Download
memory/1748-9-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/1748-10-0x0000000005770000-0x0000000005780000-memory.dmp

Filesize
64KB

Download
memory/1748-11-0x00000000080E0000-0x0000000008180000-memory.dmp

Filesize
640KB

Download
memory/1748-5-0x0000000005770000-0x0000000005780000-memory.dmp

Filesize
64KB

Download
memory/1748-18-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/1748-6-0x00000000054A0000-0x00000000054AA000-memory.dmp

Filesize
40KB

Download
memory/1748-7-0x0000000005700000-0x0000000005756000-memory.dmp

Filesize
344KB

Download
memory/1748-4-0x0000000005570000-0x0000000005602000-memory.dmp

Filesize
584KB

Download
memory/1748-3-0x0000000005A80000-0x0000000006024000-memory.dmp

Filesize
5.6MB

Download
memory/1748-2-0x00000000053D0000-0x000000000546C000-memory.dmp

Filesize
624KB

Download