oski | 9472ff0cd262c6be42e1dd53b1553db0e46022c3133dbeacd3d004d6bfc59bdc

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
21/03/2024, 19:56

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General

Target

dc7cce7fed750c48705f46022f2f9079.ps1
Size

421KB
MD5

dc7cce7fed750c48705f46022f2f9079
SHA1

8dd2028110b31271ae6295b378e9ba435ff124ed
SHA256

9472ff0cd262c6be42e1dd53b1553db0e46022c3133dbeacd3d004d6bfc59bdc
SHA512

db47b205be5ee7d15ddd9765eaed5e1aba8558438ef52bbb4a4324a2428cb5f4a2094fb131f821bead518b791bf0d6d4f5bf8b3112cdc46b695d8851d3e151d8
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64PL68:q3Y

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 2900 set thread context of 1920	2900	powershell.exe	98

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4368	1920	WerFault.exe	98

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2900	powershell.exe
2900	powershell.exe
2900	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2900	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 1920	2900	powershell.exe	98
PID 2900 wrote to memory of 1920	2900	powershell.exe	98
PID 2900 wrote to memory of 1920	2900	powershell.exe	98
PID 2900 wrote to memory of 1920	2900	powershell.exe	98
PID 2900 wrote to memory of 1920	2900	powershell.exe	98
PID 2900 wrote to memory of 1920	2900	powershell.exe	98
PID 2900 wrote to memory of 1920	2900	powershell.exe	98
PID 2900 wrote to memory of 1920	2900	powershell.exe	98
PID 2900 wrote to memory of 1920	2900	powershell.exe	98

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\dc7cce7fed750c48705f46022f2f9079.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:1920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 1068
    3⤵
    - Program crash
    PID:4368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1920 -ip 1920
1⤵
PID:4680

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3856 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:2656

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iio45wkg.and.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1920-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1920-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1920-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1920-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1920-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2900-11-0x00000240F20A0000-0x00000240F20B0000-memory.dmp

Filesize
64KB

Download
memory/2900-14-0x00000240F2980000-0x00000240F298A000-memory.dmp

Filesize
40KB

Download
memory/2900-18-0x00007FFC4E380000-0x00007FFC4EE41000-memory.dmp

Filesize
10.8MB

Download
memory/2900-13-0x00000240F20A0000-0x00000240F20B0000-memory.dmp

Filesize
64KB

Download
memory/2900-12-0x00000240F20A0000-0x00000240F20B0000-memory.dmp

Filesize
64KB

Download
memory/2900-10-0x00007FFC4E380000-0x00007FFC4EE41000-memory.dmp

Filesize
10.8MB

Download
memory/2900-6-0x00000240F2990000-0x00000240F29B2000-memory.dmp

Filesize
136KB

Download