oski | 64317045686f2cc6fca84d4b469a5e65f7a48ba8cd2a55817c8040833f42ebf8

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
04/03/2024, 00:57

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General

Target

b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
Size

735KB
MD5

b0d480d34cdcbaf1e8514e9ae6ff17c8
SHA1

6c6e06311c2fc21ada0e6a55dfc6b86e701129b2
SHA256

64317045686f2cc6fca84d4b469a5e65f7a48ba8cd2a55817c8040833f42ebf8
SHA512

6a8b05ba0e4bff2aee18f2d130f3f986f5231786e5bc3ccbb1de508737a4af145fa4f5c1733cbe7dd57e6a9f659f1307d13e641e8a78fa97013b7be1a45d2290
SSDEEP

12288:gD5bqVFsMm0HcN6WgjdyJ/8+LkHAi+nzk7FaZWbA4me6m1Dl5ZFHEXcRIQoovasF:gwVFsMp8NfMEJFaJuzkaWAr9Gl5Z/7oe

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

irkark.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 692 set thread context of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4296	2932	WerFault.exe	95

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 692 wrote to memory of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95
PID 692 wrote to memory of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95
PID 692 wrote to memory of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95
PID 692 wrote to memory of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95
PID 692 wrote to memory of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95
PID 692 wrote to memory of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95
PID 692 wrote to memory of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95
PID 692 wrote to memory of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95
PID 692 wrote to memory of 2932	692	b0d480d34cdcbaf1e8514e9ae6ff17c8.exe	95

C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:692
- C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
  "C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"
  2⤵
  PID:2932
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 1288
    3⤵
    - Program crash
    PID:4296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 2932 -ip 2932
1⤵
PID:512

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/692-8-0x0000000007C60000-0x0000000007C7A000-memory.dmp

Filesize
104KB

Download
memory/692-10-0x0000000005230000-0x0000000005240000-memory.dmp

Filesize
64KB

Download
memory/692-2-0x00000000050D0000-0x000000000516C000-memory.dmp

Filesize
624KB

Download
memory/692-9-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/692-4-0x0000000005250000-0x00000000052E2000-memory.dmp

Filesize
584KB

Download
memory/692-5-0x0000000005230000-0x0000000005240000-memory.dmp

Filesize
64KB

Download
memory/692-6-0x00000000051F0000-0x00000000051FA000-memory.dmp

Filesize
40KB

Download
memory/692-7-0x0000000005440000-0x0000000005496000-memory.dmp

Filesize
344KB

Download
memory/692-1-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/692-0-0x0000000000690000-0x000000000074E000-memory.dmp

Filesize
760KB

Download
memory/692-3-0x0000000005760000-0x0000000005D04000-memory.dmp

Filesize
5.6MB

Download
memory/692-11-0x0000000007EE0000-0x0000000007F80000-memory.dmp

Filesize
640KB

Download
memory/692-12-0x0000000007CE0000-0x0000000007D18000-memory.dmp

Filesize
224KB

Download
memory/692-17-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/2932-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2932-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2932-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2932-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2932-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download