oski | 628b76cce75b5f7f322b00b2ae144d7ffb1d2f09e89357629efe6f6f175cd459

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
20/04/2024, 22:59

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General

Target
fdd9a6618c208226657cb8461e7dab96_JaffaCakes118.ps1
Size 485KB
Sample240420-2ylf1acb68
SHA256 628b76cce75b5f7f322b00b2ae144d7ffb1d2f09e89357629efe6f6f175cd459
MD5 fdd9a6618c208226657cb8461e7dab96
SHA1 bbbffcdddbf21c590b4ff24a89793354f6be2338
SHA512 366432581c7829c87454597e86228568f4f50db5c5fadd7ffcc9b5418df58b3170e9ae7eacbc5ed3cbe65a4d0af4725aece471e5f8ebb10296527c6252fb22ff
SSDEEP 12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64Pigu:q34u
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l34/

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 3352 set thread context of 2792	3352	powershell.exe	88

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2384	2792	WerFault.exe	88

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3352	powershell.exe
3352	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3352	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 2792	3352	powershell.exe	88
PID 3352 wrote to memory of 2792	3352	powershell.exe	88
PID 3352 wrote to memory of 2792	3352	powershell.exe	88
PID 3352 wrote to memory of 2792	3352	powershell.exe	88
PID 3352 wrote to memory of 2792	3352	powershell.exe	88
PID 3352 wrote to memory of 2792	3352	powershell.exe	88
PID 3352 wrote to memory of 2792	3352	powershell.exe	88
PID 3352 wrote to memory of 2792	3352	powershell.exe	88
PID 3352 wrote to memory of 2792	3352	powershell.exe	88

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\fdd9a6618c208226657cb8461e7dab96_JaffaCakes118.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:2792
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 1100
    3⤵
    - Program crash
    PID:2384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2792 -ip 2792
1⤵
PID:3404

Network

MITRE ATT&CK Matrix

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Downloads

__PSScriptPolicyTest_0l2bsshn.kn1.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0l2bsshn.kn1.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/2792-14-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2792-17-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2792-18-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2792-20-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2792-23-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/3352-5-0x000002DDA6510000-0x000002DDA6532000-memory.dmp

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memory/3352-10-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

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memory/3352-11-0x000002DDA6550000-0x000002DDA6560000-memory.dmp

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memory/3352-12-0x000002DDA6550000-0x000002DDA6560000-memory.dmp

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memory/3352-13-0x000002DD8E0F0000-0x000002DD8E102000-memory.dmp

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memory/3352-19-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

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