oski | 7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413

General

Target

7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe
Size

293KB
MD5

b8587f4bbee7e735a72d3652199342f7
SHA1

3dcf20e70ec18584033d1cdfc3eeffc409ad88c4
SHA256

7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413
SHA512

182e8f17d9f9a65e1df95f7050c9fc2a3423f0a2dbfa2faf2f5016930547532bd38d3e1e0eb41596abdf94bac6113293ba72d3006ae15f8c14db8b0cf8e093de
SSDEEP

6144:/Q07BiMXZdbGmtcXTfI3x817i/GJsc950j/pPBlYLhZ+UfvpnDNt:/Q08MXZdGmtCQW17S4scDE/pPBlYLhZL

Score

10^/10

oski infostealer persistence spyware stealer

Malware Config

Extracted

Family

oski

C2

timecforgoodnes.ml

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
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Services = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Update Folder\\Windows Update.exe"	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1776 set thread context of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28

Program crash 1 IoCs

pid	pid_target	Process	procid_target
820	1304	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe
1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1776 wrote to memory of 1304	1776	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	28
PID 1304 wrote to memory of 820	1304	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	31
PID 1304 wrote to memory of 820	1304	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	31
PID 1304 wrote to memory of 820	1304	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	31
PID 1304 wrote to memory of 820	1304	7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe	31

C:\Users\Admin\AppData\Local\Temp\7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe
"C:\Users\Admin\AppData\Local\Temp\7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Local\Temp\7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe
  "C:\Users\Admin\AppData\Local\Temp\7610eebdfb8f0a1871fc6981414168af210ebd40c6148e2282b7d5c47faca413.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1304
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1304 -s 852
    3⤵
    - Program crash
    PID:820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1304-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1304-66-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1304-57-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1304-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1304-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1304-73-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1304-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1304-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1304-69-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1304-70-0x0000000075F01000-0x0000000075F03000-memory.dmp

Filesize
8KB

Download
memory/1776-56-0x0000000000310000-0x000000000031A000-memory.dmp

Filesize
40KB

Download
memory/1776-55-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1776-54-0x0000000000230000-0x0000000000284000-memory.dmp

Filesize
336KB

Download

Analysis

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