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 target process

PID 4836 set thread context of 4572 4836 powershell.exe aspnet_compiler.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3692 4572 WerFault.exe aspnet_compiler.exe
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

description	pid	process	target process
PID 4836 set thread context of 4572	4836	powershell.exe	aspnet_compiler.exe

pid	pid_target	process	target process
3692	4572	WerFault.exe	aspnet_compiler.exe

pid	process
4836	powershell.exe
4836	powershell.exe
4836	powershell.exe
4836	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4836	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 4836 wrote to memory of 2196	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 2196	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 2196	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 4572	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 4572	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 4572	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 4572	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 4572	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 4572	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 4572	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 4572	4836	powershell.exe	aspnet_compiler.exe
PID 4836 wrote to memory of 4572	4836	powershell.exe	aspnet_compiler.exe

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