oski | 091fb99d751df7e9e867422f401ff7181adc35c6f90ad2c8aafd54e3ec724771

Analysis

max time kernel
149s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2023 14:14

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General

Target

bbb6126304164468a0391e475be41aa0.exe
Size

689KB
MD5

bbb6126304164468a0391e475be41aa0
SHA1

a7de5d41291af39b594698220bfaf27d23717428
SHA256

091fb99d751df7e9e867422f401ff7181adc35c6f90ad2c8aafd54e3ec724771
SHA512

d3a7aa913f076053890718ff1251e982f0dbdbfd2c886cdfe0e60de51540dcbbd9c12332c5894b3cce7a04b3b00049a0fb52fbc8dafcc9d2c6276eb5f2794d8c
SSDEEP

6144:2rkT+ZID/jZgGtA3qe8DvZ1ZHRR6UQdKTdRGK0EM9uxxaWfPAh5jKRoZsiJ5FJLd:ukqwjDe8DBjHHWdKTiK4WXAh0uZs

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

http://bctpump.us

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4204 set thread context of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3760	452	WerFault.exe	103

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4204	bbb6126304164468a0391e475be41aa0.exe
4204	bbb6126304164468a0391e475be41aa0.exe
4204	bbb6126304164468a0391e475be41aa0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4204	bbb6126304164468a0391e475be41aa0.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103
PID 4204 wrote to memory of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103
PID 4204 wrote to memory of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103
PID 4204 wrote to memory of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103
PID 4204 wrote to memory of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103
PID 4204 wrote to memory of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103
PID 4204 wrote to memory of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103
PID 4204 wrote to memory of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103
PID 4204 wrote to memory of 452	4204	bbb6126304164468a0391e475be41aa0.exe	103

C:\Users\Admin\AppData\Local\Temp\bbb6126304164468a0391e475be41aa0.exe
"C:\Users\Admin\AppData\Local\Temp\bbb6126304164468a0391e475be41aa0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:452
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 1240
    3⤵
    - Program crash
    PID:3760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 452 -ip 452
1⤵
PID:1112

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\ProgramData\msvcp140.dll

Filesize
175B

MD5
a7eca2913e9112121e5585480b1f7c82

SHA1
8202e28c75f97352c0545b1a05d2a902a1c5664b

SHA256
60bd258837c33a9abb899bc6d6393da70afe5bf2dfd9b560f47092a9c43ba43a

SHA512
f6ceabaa4f567fa98f6758e7605fdf473f4ae0f26b0be1c5d0ef8e456421c4a8b487ed7b6042469d81daf7142eee8cd382a8a169972ea7accf9eb079e62f9f46

Download Submit
memory/452-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/452-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/452-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/452-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/452-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4204-4-0x0000000005080000-0x0000000005090000-memory.dmp

Filesize
64KB

Download
memory/4204-6-0x0000000005010000-0x000000000502C000-memory.dmp

Filesize
112KB

Download
memory/4204-8-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4204-9-0x0000000005080000-0x0000000005090000-memory.dmp

Filesize
64KB

Download
memory/4204-10-0x000000000B500000-0x000000000B56A000-memory.dmp

Filesize
424KB

Download
memory/4204-11-0x000000000E0B0000-0x000000000E0E8000-memory.dmp

Filesize
224KB

Download
memory/4204-7-0x000000000B5A0000-0x000000000B63C000-memory.dmp

Filesize
624KB

Download
memory/4204-5-0x0000000004D80000-0x0000000004D8A000-memory.dmp

Filesize
40KB

Download
memory/4204-1-0x00000000002D0000-0x0000000000382000-memory.dmp

Filesize
712KB

Download
memory/4204-3-0x0000000004E00000-0x0000000004E92000-memory.dmp

Filesize
584KB

Download
memory/4204-17-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4204-2-0x00000000053B0000-0x0000000005954000-memory.dmp

Filesize
5.6MB

Download
memory/4204-0-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download