oski | ba3283365384e502f10612a39c50d72258b19c9e08818e75430a24dcd32691c4

General

Target

05eaa46461a00795419425d575ccee0a.ps1
Size

656KB
MD5

05eaa46461a00795419425d575ccee0a
SHA1

92e497d10544823e592d33dca38092064b242c20
SHA256

ba3283365384e502f10612a39c50d72258b19c9e08818e75430a24dcd32691c4
SHA512

e5076b5642282cb6d4528388447edca90f3ba67dd4f9b85085e890b0a9609a3a2bd001e8f27658481d90be0aecd0cec1a0cece81c98a92f627686e8596dce366
SSDEEP

12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64k8TVkc5A+:g3ITmr+

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l1212/

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 3924 set thread context of 4660	3924	powershell.exe	93

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1912	4660	WerFault.exe	93

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3924	powershell.exe
3924	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3924	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3924 wrote to memory of 4660	3924	powershell.exe	93
PID 3924 wrote to memory of 4660	3924	powershell.exe	93
PID 3924 wrote to memory of 4660	3924	powershell.exe	93
PID 3924 wrote to memory of 4660	3924	powershell.exe	93
PID 3924 wrote to memory of 4660	3924	powershell.exe	93
PID 3924 wrote to memory of 4660	3924	powershell.exe	93
PID 3924 wrote to memory of 4660	3924	powershell.exe	93
PID 3924 wrote to memory of 4660	3924	powershell.exe	93
PID 3924 wrote to memory of 4660	3924	powershell.exe	93

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\05eaa46461a00795419425d575ccee0a.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3924
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #cmd
  2⤵
  PID:4660
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 1100
    3⤵
    - Program crash
    PID:1912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4660 -ip 4660
1⤵
PID:2024

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_icjup31f.rvk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3924-54-0x000002A91AE90000-0x000002A91AE91000-memory.dmp

Filesize
4KB

Download
memory/3924-25-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-11-0x000002A97F270000-0x000002A97F280000-memory.dmp

Filesize
64KB

Download
memory/3924-12-0x000002A97F270000-0x000002A97F280000-memory.dmp

Filesize
64KB

Download
memory/3924-14-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-29-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-27-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-47-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-23-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-60-0x00007FFA8F430000-0x00007FFA8FEF1000-memory.dmp

Filesize
10.8MB

Download
memory/3924-41-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-39-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-51-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-53-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-49-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-9-0x000002A97F230000-0x000002A97F252000-memory.dmp

Filesize
136KB

Download
memory/3924-13-0x000002A91AE70000-0x000002A91AE96000-memory.dmp

Filesize
152KB

Download
memory/3924-10-0x00007FFA8F430000-0x00007FFA8FEF1000-memory.dmp

Filesize
10.8MB

Download
memory/3924-33-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-15-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-17-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-19-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-58-0x000002A97F270000-0x000002A97F280000-memory.dmp

Filesize
64KB

Download
memory/3924-45-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-43-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-37-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-35-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-31-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/3924-21-0x000002A91AE70000-0x000002A91AE90000-memory.dmp

Filesize
128KB

Download
memory/4660-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4660-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4660-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4660-55-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4660-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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