oski | 23505626c4370e6730243a7a0d238665762757f334486692af862e19c0f42c7e

Analysis

max time kernel
156s
max time network
164s
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 12:51

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General

Target

8feadf3a0c1ceb6b2207a4be0746dc74.ps1
Size

485KB
MD5

8feadf3a0c1ceb6b2207a4be0746dc74
SHA1

98226516bbf42ef670248b5d1376fddc2c5f3e50
SHA256

23505626c4370e6730243a7a0d238665762757f334486692af862e19c0f42c7e
SHA512

901498b3545ba411161e23f62f56fc0f9539dbab8b50776c8a983a96f9b34debe5ff9955306004c48028d69a1fd6dfadea3b21f79adad9e5863fa61705320e90
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw640igu:q3xu

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.114.107.28/l1/

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 4848 set thread context of 2292	4848	powershell.exe	93

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4848	powershell.exe
4848	powershell.exe
4848	powershell.exe
4848	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4848	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 3444	4848	powershell.exe	92
PID 4848 wrote to memory of 3444	4848	powershell.exe	92
PID 4848 wrote to memory of 3444	4848	powershell.exe	92
PID 4848 wrote to memory of 2292	4848	powershell.exe	93
PID 4848 wrote to memory of 2292	4848	powershell.exe	93
PID 4848 wrote to memory of 2292	4848	powershell.exe	93
PID 4848 wrote to memory of 2292	4848	powershell.exe	93
PID 4848 wrote to memory of 2292	4848	powershell.exe	93
PID 4848 wrote to memory of 2292	4848	powershell.exe	93
PID 4848 wrote to memory of 2292	4848	powershell.exe	93
PID 4848 wrote to memory of 2292	4848	powershell.exe	93
PID 4848 wrote to memory of 2292	4848	powershell.exe	93

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\8feadf3a0c1ceb6b2207a4be0746dc74.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:3444
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:2292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2292 -ip 2292
1⤵
PID:4288

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xy00ut0u.w05.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2292-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2292-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2292-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2292-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2292-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4848-11-0x000001F8FBB50000-0x000001F8FBB60000-memory.dmp

Filesize
64KB

Download
memory/4848-14-0x000001F8FB9E0000-0x000001F8FB9F2000-memory.dmp

Filesize
72KB

Download
memory/4848-20-0x00007FFD2CD70000-0x00007FFD2D831000-memory.dmp

Filesize
10.8MB

Download
memory/4848-13-0x000001F8FBB50000-0x000001F8FBB60000-memory.dmp

Filesize
64KB

Download
memory/4848-12-0x000001F8FBB50000-0x000001F8FBB60000-memory.dmp

Filesize
64KB

Download
memory/4848-5-0x000001F8FBB00000-0x000001F8FBB22000-memory.dmp

Filesize
136KB

Download
memory/4848-10-0x00007FFD2CD70000-0x00007FFD2D831000-memory.dmp

Filesize
10.8MB

Download