oski | 0cc9b344851976cd065299e77b2746fb5de096bceb6349ef2dc2827d71cf0c8f

General

Target

fdd0c312c24556d07fad6882b4fed38e_JaffaCakes118.ps1
Size

656KB
MD5

fdd0c312c24556d07fad6882b4fed38e
SHA1

f7f06fed879db8264109b085c3b7979fc598b515
SHA256

0cc9b344851976cd065299e77b2746fb5de096bceb6349ef2dc2827d71cf0c8f
SHA512

9beab4de0074b55805326f48db80311e3adc61ae58d04246e49dd5c43d124e890d7f2eaa54fc5c8c4401bdfa2b301b6e725582404ffdcf4d12a088b3c2b0d1fe
SSDEEP

12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64+8TVkc5A+:g3iTmr+

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l35/

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 4508 set thread context of 740	4508	powershell.exe	90

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2508	740	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4508	powershell.exe
4508	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4508	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 740	4508	powershell.exe	90
PID 4508 wrote to memory of 740	4508	powershell.exe	90
PID 4508 wrote to memory of 740	4508	powershell.exe	90
PID 4508 wrote to memory of 740	4508	powershell.exe	90
PID 4508 wrote to memory of 740	4508	powershell.exe	90
PID 4508 wrote to memory of 740	4508	powershell.exe	90
PID 4508 wrote to memory of 740	4508	powershell.exe	90
PID 4508 wrote to memory of 740	4508	powershell.exe	90
PID 4508 wrote to memory of 740	4508	powershell.exe	90

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\fdd0c312c24556d07fad6882b4fed38e_JaffaCakes118.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #cmd
  2⤵
  PID:740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 1128
    3⤵
    - Program crash
    PID:2508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 740 -ip 740
1⤵
PID:2152

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vcg0502j.1sm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/740-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/740-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/740-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/740-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/740-55-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4508-33-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-43-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-17-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-19-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-21-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-23-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-25-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-27-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-29-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-31-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-15-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-35-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-37-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-39-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-41-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-14-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-45-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-47-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-49-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-51-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-53-0x000001BF6A7F0000-0x000001BF6A810000-memory.dmp

Filesize
128KB

Download
memory/4508-54-0x000001BF67CE0000-0x000001BF67CE1000-memory.dmp

Filesize
4KB

Download
memory/4508-13-0x000001BF6A7F0000-0x000001BF6A816000-memory.dmp

Filesize
152KB

Download
memory/4508-56-0x000001BF67CF0000-0x000001BF67D00000-memory.dmp

Filesize
64KB

Download
memory/4508-60-0x00007FF9BFE60000-0x00007FF9C0921000-memory.dmp

Filesize
10.8MB

Download
memory/4508-12-0x000001BF67CF0000-0x000001BF67D00000-memory.dmp

Filesize
64KB

Download
memory/4508-11-0x000001BF67CF0000-0x000001BF67D00000-memory.dmp

Filesize
64KB

Download
memory/4508-9-0x000001BF6A7C0000-0x000001BF6A7E2000-memory.dmp

Filesize
136KB

Download
memory/4508-10-0x00007FF9BFE60000-0x00007FF9C0921000-memory.dmp

Filesize
10.8MB

Download

Analysis

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