oski | 49a76b831f7668c5f30a783db5b2ad43e03fdb5f99295c41adb17afc4512c311

Analysis

max time kernel
142s
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
14-04-2024 21:47

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General

Target

ef94e89b98b1ddc2f7b02be201d5161f_JaffaCakes118.ps1
Size

493KB
MD5

ef94e89b98b1ddc2f7b02be201d5161f
SHA1

e2a7d0e9e798681d07d248064fbcbf4b5ef905b5
SHA256

49a76b831f7668c5f30a783db5b2ad43e03fdb5f99295c41adb17afc4512c311
SHA512

2cbc02496f450c2cddf5bfcb4a75dc1cb52ac079eab288f232eea3f0bf8ab49bd9f4e32c794711a3984a78e9f8e26421b35ddc99e7110c2b582b49b1c712b2c6
SSDEEP

12288:FMBZjw0RJ9u5ILYDxD3fxYehza/tw645j:FMn3A

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.99.1.60/b14n/

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description	pid	Process	procid_target
PID 4836 set thread context of 4572	4836	powershell.exe	91

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
3692	4572	WerFault.exe	91

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exe

pid	Process
4836	powershell.exe
4836	powershell.exe
4836	powershell.exe
4836	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	4836	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

powershell.exe

description	pid	Process	procid_target
PID 4836 wrote to memory of 2196	4836	powershell.exe	90
PID 4836 wrote to memory of 2196	4836	powershell.exe	90
PID 4836 wrote to memory of 2196	4836	powershell.exe	90
PID 4836 wrote to memory of 4572	4836	powershell.exe	91
PID 4836 wrote to memory of 4572	4836	powershell.exe	91
PID 4836 wrote to memory of 4572	4836	powershell.exe	91
PID 4836 wrote to memory of 4572	4836	powershell.exe	91
PID 4836 wrote to memory of 4572	4836	powershell.exe	91
PID 4836 wrote to memory of 4572	4836	powershell.exe	91
PID 4836 wrote to memory of 4572	4836	powershell.exe	91
PID 4836 wrote to memory of 4572	4836	powershell.exe	91
PID 4836 wrote to memory of 4572	4836	powershell.exe	91

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\ef94e89b98b1ddc2f7b02be201d5161f_JaffaCakes118.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #Powershell
  2⤵
  PID:2196
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #Powershell
  2⤵
  PID:4572
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 1244
    3⤵
    - Program crash
    PID:3692

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4156 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:8
1⤵
PID:1304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4572 -ip 4572
1⤵
PID:3992

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tiqhzq4l.1h1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4572-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4572-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4572-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4572-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4572-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4572-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4836-14-0x000001E80BF10000-0x000001E80BF22000-memory.dmp

Filesize
72KB

Download
memory/4836-13-0x000001E8243A0000-0x000001E8243B0000-memory.dmp

Filesize
64KB

Download
memory/4836-19-0x00007FFD774B0000-0x00007FFD77F71000-memory.dmp

Filesize
10.8MB

Download
memory/4836-12-0x000001E8243A0000-0x000001E8243B0000-memory.dmp

Filesize
64KB

Download
memory/4836-11-0x000001E8243A0000-0x000001E8243B0000-memory.dmp

Filesize
64KB

Download
memory/4836-10-0x00007FFD774B0000-0x00007FFD77F71000-memory.dmp

Filesize
10.8MB

Download
memory/4836-9-0x000001E80BEC0000-0x000001E80BEE2000-memory.dmp

Filesize
136KB

Download