oski | 08404813f0e11c3688b525e090dab33d7468c87a9b0e9beae61364b53f28540c

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 13:51

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General

Target

5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe
Size

680KB
MD5

bc7f80814ad63a035fbf8e0b67b02155
SHA1

a7d76dd02b12bb250f9f42101fda1fa235154710
SHA256

5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c
SHA512

ac336b61ad93d51e68784350d59d56d08ac947426c3570ed7f0dfbbbdfce24bd0c495c6f626d3edeb8de47a0f0a3a09701b33b78dbb7a7a1e0b1cd32f8d0991a
SSDEEP

6144:nSiQrg69p5Ozn2zdCQ2I8EXAOteqM+Z4q6NHnfmDZET62KGUXtkJwov56hL:eBIzn2zd6EX6qM+Z4qufG6/PUyJw+A

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

himarkh.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

Processes:

5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe

description	pid	Process	procid_target
PID 2008 set thread context of 3372	2008	5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe	87

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4720	3372	WerFault.exe	87

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe

pid	Process
2008	5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe

description	pid	Process	procid_target
PID 2008 wrote to memory of 3372	2008	5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe	87
PID 2008 wrote to memory of 3372	2008	5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe	87
PID 2008 wrote to memory of 3372	2008	5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe	87
PID 2008 wrote to memory of 3372	2008	5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe	87

C:\Users\Admin\AppData\Local\Temp\5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe
"C:\Users\Admin\AppData\Local\Temp\5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe
  "C:\Users\Admin\AppData\Local\Temp\5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe"
  2⤵
  PID:3372
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 1300
    3⤵
    - Program crash
    PID:4720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 3372 -ip 3372
1⤵
PID:960

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/2008-1-0x00000000000A0000-0x00000000001A0000-memory.dmp

Filesize
1024KB

Download
memory/2008-2-0x0000000000580000-0x0000000000582000-memory.dmp

Filesize
8KB

Download
memory/3372-3-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3372-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3372-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3372-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3372-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download