oski | a34e7c63da647c394b8becde55d6e87bc34e2c934c89b7f23484747a3598fb4c

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09/01/2024, 05:53

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General

Target

4d838fd7586e75e908483b1807bc29a6.exe
Size

732KB
MD5

4d838fd7586e75e908483b1807bc29a6
SHA1

ab5e4e82d68462daec9ff1dc0fa81380d8991df0
SHA256

a34e7c63da647c394b8becde55d6e87bc34e2c934c89b7f23484747a3598fb4c
SHA512

df7980b4b9d058ef368c7c93069dcb5a8c689f755d0ca15a355bee5860cd167dcda1a3afbbf7ec9ab46f96690d6d7ee161f660219f049cc88c7841daef88c5fa
SSDEEP

12288:qQE4Ud4N5tA2P9qRLOhdKeE2gawV77yQ0wc0HK7zVRAtep79CqX8QXTfFteLSgQ3:T0Khd9g10wy51xCqXn3eWn+kGk85Upvj

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

cabvui.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 2168 set thread context of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2640	2100	WerFault.exe	30

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2168 wrote to memory of 2100	2168	4d838fd7586e75e908483b1807bc29a6.exe	30
PID 2100 wrote to memory of 2640	2100	4d838fd7586e75e908483b1807bc29a6.exe	34
PID 2100 wrote to memory of 2640	2100	4d838fd7586e75e908483b1807bc29a6.exe	34
PID 2100 wrote to memory of 2640	2100	4d838fd7586e75e908483b1807bc29a6.exe	34
PID 2100 wrote to memory of 2640	2100	4d838fd7586e75e908483b1807bc29a6.exe	34

C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe
"C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe
  "C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 776
    3⤵
    - Program crash
    PID:2640

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/2100-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2100-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2168-3-0x0000000000970000-0x0000000000986000-memory.dmp

Filesize
88KB

Download
memory/2168-1-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-0-0x0000000000F00000-0x0000000000FBC000-memory.dmp

Filesize
752KB

Download
memory/2168-7-0x0000000000EC0000-0x0000000000EF8000-memory.dmp

Filesize
224KB

Download
memory/2168-6-0x0000000005EC0000-0x0000000005F62000-memory.dmp

Filesize
648KB

Download
memory/2168-23-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-5-0x0000000004E40000-0x0000000004E80000-memory.dmp

Filesize
256KB

Download
memory/2168-4-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-2-0x0000000004E40000-0x0000000004E80000-memory.dmp

Filesize
256KB

Download