oski | cae35f47589e7001d9ca57473ed487efbfee6b08536e6639945e563526e6e616

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
06-01-2024 21:42

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General

Target

473d41b8499f701356991091f3e39e35.ps1
Size

706KB
MD5

473d41b8499f701356991091f3e39e35
SHA1

f1284f26f6b97f81b6936789bbd9d931adf5d562
SHA256

cae35f47589e7001d9ca57473ed487efbfee6b08536e6639945e563526e6e616
SHA512

3964ba9ed1be7a96dd63743c25290a487b7e8ecf6e6a4793a739132d998387a2e9931dd05a0f4494300e7e61a2642aa99ef0621ae91c58b7eaf4235cd5ca91f6
SSDEEP

6144:raJpHs+ApelD0TpSXKFlECflUZdAMr9LXoFNihdhUNK/16dBzMeiuoC6GSOym02:BOARH02

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.99.1.60/we/ahsa/

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 3824 set thread context of 2596	3824	powershell.exe	91

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1548	2596	WerFault.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3824	powershell.exe
3824	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3824	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3824 wrote to memory of 2596	3824	powershell.exe	91
PID 3824 wrote to memory of 2596	3824	powershell.exe	91
PID 3824 wrote to memory of 2596	3824	powershell.exe	91
PID 3824 wrote to memory of 2596	3824	powershell.exe	91
PID 3824 wrote to memory of 2596	3824	powershell.exe	91
PID 3824 wrote to memory of 2596	3824	powershell.exe	91
PID 3824 wrote to memory of 2596	3824	powershell.exe	91
PID 3824 wrote to memory of 2596	3824	powershell.exe	91
PID 3824 wrote to memory of 2596	3824	powershell.exe	91

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\473d41b8499f701356991091f3e39e35.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3824
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:2596
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 1200
    3⤵
    - Program crash
    PID:1548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2596 -ip 2596
1⤵
PID:1064

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qwaattsr.azb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2596-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2596-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2596-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2596-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2596-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2596-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3824-10-0x00007FFFE9630000-0x00007FFFEA0F1000-memory.dmp

Filesize
10.8MB

Download
memory/3824-12-0x000001D374260000-0x000001D374270000-memory.dmp

Filesize
64KB

Download
memory/3824-11-0x000001D374260000-0x000001D374270000-memory.dmp

Filesize
64KB

Download
memory/3824-13-0x000001D35BD20000-0x000001D35BD28000-memory.dmp

Filesize
32KB

Download
memory/3824-18-0x00007FFFE9630000-0x00007FFFEA0F1000-memory.dmp

Filesize
10.8MB

Download
memory/3824-9-0x000001D374370000-0x000001D374392000-memory.dmp

Filesize
136KB

Download