oski | 0de88ec0b8a8ebc96e9aed109e340f251b9d0db74fd2da0ef009b95c61dd1765

General

Target

f4d5309a1936b515ceb70ee239746889_JaffaCakes118.ps1
Size

656KB
MD5

f4d5309a1936b515ceb70ee239746889
SHA1

3100236bc3cb1eaa0cc6fdfca247487bd7ad11b8
SHA256

0de88ec0b8a8ebc96e9aed109e340f251b9d0db74fd2da0ef009b95c61dd1765
SHA512

6ba6b237450ad1a9a84925651a3127106356c782c6c7f8417a21ac64093d2bbe72b66a2a483061a47ad025d545d6e6f15839e6c962a9e60543e274fd74e92ecf
SSDEEP

12288:EZjw0RJ9u5ILYDxD3fxYehza/tw6418TVkc5A+:g3vTmr+

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

C2

103.114.107.28/l202/

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 3852 set thread context of 3640	3852	powershell.exe	90

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3376	3640	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3852	powershell.exe
3852	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3852	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3852 wrote to memory of 3640	3852	powershell.exe	90
PID 3852 wrote to memory of 3640	3852	powershell.exe	90
PID 3852 wrote to memory of 3640	3852	powershell.exe	90
PID 3852 wrote to memory of 3640	3852	powershell.exe	90
PID 3852 wrote to memory of 3640	3852	powershell.exe	90
PID 3852 wrote to memory of 3640	3852	powershell.exe	90
PID 3852 wrote to memory of 3640	3852	powershell.exe	90
PID 3852 wrote to memory of 3640	3852	powershell.exe	90
PID 3852 wrote to memory of 3640	3852	powershell.exe	90

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\f4d5309a1936b515ceb70ee239746889_JaffaCakes118.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3852
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #cmd
  2⤵
  PID:3640
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 1232
    3⤵
    - Program crash
    PID:3376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3640 -ip 3640
1⤵
PID:5024

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2bu4dfpq.lrs.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3640-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3640-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3640-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3640-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3640-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3640-55-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3852-37-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-45-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-17-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-21-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-23-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-25-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-27-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-29-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-31-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-33-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-35-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-15-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-39-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-41-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-43-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-19-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-47-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-49-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-51-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-53-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-54-0x00000239A0D80000-0x00000239A0D81000-memory.dmp

Filesize
4KB

Download
memory/3852-14-0x00000239A0D60000-0x00000239A0D80000-memory.dmp

Filesize
128KB

Download
memory/3852-56-0x00000239A0DB0000-0x00000239A0DC0000-memory.dmp

Filesize
64KB

Download
memory/3852-13-0x00000239A0D60000-0x00000239A0D86000-memory.dmp

Filesize
152KB

Download
memory/3852-60-0x00000239A0DC0000-0x00000239A0FDC000-memory.dmp

Filesize
2.1MB

Download
memory/3852-62-0x00007FFE22E80000-0x00007FFE23941000-memory.dmp

Filesize
10.8MB

Download
memory/3852-12-0x00000239A0DB0000-0x00000239A0DC0000-memory.dmp

Filesize
64KB

Download
memory/3852-11-0x00000239A0DB0000-0x00000239A0DC0000-memory.dmp

Filesize
64KB

Download
memory/3852-9-0x00000239A0D30000-0x00000239A0D52000-memory.dmp

Filesize
136KB

Download
memory/3852-10-0x00007FFE22E80000-0x00007FFE23941000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing