oski | 9c91870abd6826a55a3091588a4dd1a06f76517ff5a59905a1247a169ba33581

Analysis

max time kernel
149s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 01:02

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General

Target
3f612a7d13131add2c7480a8f4afc2e2.ps1
Size 421KB
Sample231222-bd2dlscdb6
SHA256 9c91870abd6826a55a3091588a4dd1a06f76517ff5a59905a1247a169ba33581
MD5 3f612a7d13131add2c7480a8f4afc2e2
SHA1 002ef70c9716875d10ae15d571172ef55b9a9058
SHA512 1abfbab969598f722e900aa19b9fd6f95b21cfb07110aa978a08dbcf0d639dea1b630e2673cb1e7abeda1c3db0f1f6f0ad60eefd2f513a064e1be1a682d19905
SSDEEP 12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64EL68:q3v
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l2121/

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 208 set thread context of 4668	208	powershell.exe	41

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1836	4668	WerFault.exe	41

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
208	powershell.exe
208	powershell.exe
208	powershell.exe
208	powershell.exe
208	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	208	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 2068	208	powershell.exe	43
PID 208 wrote to memory of 2068	208	powershell.exe	43
PID 208 wrote to memory of 2068	208	powershell.exe	43
PID 208 wrote to memory of 4668	208	powershell.exe	41
PID 208 wrote to memory of 4668	208	powershell.exe	41
PID 208 wrote to memory of 4668	208	powershell.exe	41
PID 208 wrote to memory of 4668	208	powershell.exe	41
PID 208 wrote to memory of 4668	208	powershell.exe	41
PID 208 wrote to memory of 4668	208	powershell.exe	41
PID 208 wrote to memory of 4668	208	powershell.exe	41
PID 208 wrote to memory of 4668	208	powershell.exe	41
PID 208 wrote to memory of 4668	208	powershell.exe	41

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\3f612a7d13131add2c7480a8f4afc2e2.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:208
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:4668
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 1104
    3⤵
    - Program crash
    PID:1836
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:2068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4668 -ip 4668
1⤵
PID:3940

Network

MITRE ATT&CK Matrix

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Downloads

__PSScriptPolicyTest_0xqk4tmv.ice.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0xqk4tmv.ice.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/208-9-0x0000025DB28B0000-0x0000025DB28D2000-memory.dmp

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memory/208-12-0x0000025DB25C0000-0x0000025DB25D0000-memory.dmp

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memory/208-11-0x0000025DB25C0000-0x0000025DB25D0000-memory.dmp

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memory/208-10-0x00007FFA16C40000-0x00007FFA17701000-memory.dmp

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memory/208-18-0x00007FFA16C40000-0x00007FFA17701000-memory.dmp

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memory/208-13-0x0000025DB2AE0000-0x0000025DB2AEA000-memory.dmp

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memory/4668-17-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4668-20-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4668-19-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4668-14-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4668-23-0x0000000000400000-0x0000000000438000-memory.dmp

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