oski | e5c692ae3dc9c88bd07613f088686835c2e4ea2755c6abbdc01bac7bce5b924a

Analysis

max time kernel
137s
max time network
103s
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, 09:07

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General

Target

3c7485ba08cb4cb5c9af2fd0e670efee.exe
Size

1.1MB
MD5

3c7485ba08cb4cb5c9af2fd0e670efee
SHA1

bb0a4d2f63e42b269f9d7b9b894fb731093cda9e
SHA256

e5c692ae3dc9c88bd07613f088686835c2e4ea2755c6abbdc01bac7bce5b924a
SHA512

8a8095eb685cbbf0cbed9c4cc11bd4b86d56c60922a6625dc86546f37dfe0c356a4066832e2e60083342c1a1e3749d6ca2f09c894779f055fac9e9c8c03b43c0
SSDEEP

12288:Hg5BQaiYOSaDV5bvh2days0tGLKe+ML+QrX/6GXVUJsSgWiE9Y:A5BQaT2DLNl90tGn+hQr/nsn9Y

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

2tril.com

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 2632 set thread context of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4776	4252	WerFault.exe	95

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2632 wrote to memory of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95
PID 2632 wrote to memory of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95
PID 2632 wrote to memory of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95
PID 2632 wrote to memory of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95
PID 2632 wrote to memory of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95
PID 2632 wrote to memory of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95
PID 2632 wrote to memory of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95
PID 2632 wrote to memory of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95
PID 2632 wrote to memory of 4252	2632	3c7485ba08cb4cb5c9af2fd0e670efee.exe	95

C:\Users\Admin\AppData\Local\Temp\3c7485ba08cb4cb5c9af2fd0e670efee.exe
"C:\Users\Admin\AppData\Local\Temp\3c7485ba08cb4cb5c9af2fd0e670efee.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2632
- C:\Users\Admin\AppData\Local\Temp\3c7485ba08cb4cb5c9af2fd0e670efee.exe
  "C:\Users\Admin\AppData\Local\Temp\3c7485ba08cb4cb5c9af2fd0e670efee.exe"
  2⤵
  PID:4252
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4252 -s 1328
    3⤵
    - Program crash
    PID:4776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4252 -ip 4252
1⤵
PID:1892

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/2632-8-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2632-10-0x0000000006DE0000-0x0000000006E80000-memory.dmp

Filesize
640KB

Download
memory/2632-3-0x0000000005350000-0x00000000053E2000-memory.dmp

Filesize
584KB

Download
memory/2632-4-0x00000000054D0000-0x00000000054E0000-memory.dmp

Filesize
64KB

Download
memory/2632-5-0x0000000005330000-0x000000000533A000-memory.dmp

Filesize
40KB

Download
memory/2632-0-0x0000000000810000-0x000000000092A000-memory.dmp

Filesize
1.1MB

Download
memory/2632-7-0x00000000066B0000-0x000000000674C000-memory.dmp

Filesize
624KB

Download
memory/2632-6-0x00000000054A0000-0x00000000054BC000-memory.dmp

Filesize
112KB

Download
memory/2632-2-0x0000000005860000-0x0000000005E04000-memory.dmp

Filesize
5.6MB

Download
memory/2632-1-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2632-9-0x00000000054D0000-0x00000000054E0000-memory.dmp

Filesize
64KB

Download
memory/2632-11-0x00000000093D0000-0x0000000009446000-memory.dmp

Filesize
472KB

Download
memory/2632-16-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4252-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4252-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4252-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4252-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4252-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download