oski | bb841def4922f297f8ec199262a65235f7ea8f5578a31fb831c9805e139f378a

General

Target

2527db2a682db3ff527685efe6f22592.ps1
Size

656KB
MD5

2527db2a682db3ff527685efe6f22592
SHA1

c1f2354b8585f2584368c65771802f3763510959
SHA256

bb841def4922f297f8ec199262a65235f7ea8f5578a31fb831c9805e139f378a
SHA512

d7f0b658e6df3ecdaad03435883806c890f8238f64f1ee32d8d4ee672b812f479db945f9a290544dc6f20428163b78e7620aefe39bb7630ff1c10bac4651229b
SSDEEP

12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64s8TVkc5A+:g3QTmr+

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l4040/

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 2192 set thread context of 764	2192	powershell.exe	91

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3268	764	WerFault.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2192	powershell.exe
2192	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 764	2192	powershell.exe	91
PID 2192 wrote to memory of 764	2192	powershell.exe	91
PID 2192 wrote to memory of 764	2192	powershell.exe	91
PID 2192 wrote to memory of 764	2192	powershell.exe	91
PID 2192 wrote to memory of 764	2192	powershell.exe	91
PID 2192 wrote to memory of 764	2192	powershell.exe	91
PID 2192 wrote to memory of 764	2192	powershell.exe	91
PID 2192 wrote to memory of 764	2192	powershell.exe	91
PID 2192 wrote to memory of 764	2192	powershell.exe	91

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\2527db2a682db3ff527685efe6f22592.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #cmd
  2⤵
  PID:764
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 1120
    3⤵
    - Program crash
    PID:3268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 764 -ip 764
1⤵
PID:3096

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3rasc5iu.moz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/764-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/764-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/764-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/764-55-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/764-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2192-15-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-53-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-0-0x0000028482C80000-0x0000028482CA2000-memory.dmp

Filesize
136KB

Download
memory/2192-19-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-23-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-21-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-33-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-43-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-47-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-58-0x0000028482B90000-0x0000028482BA0000-memory.dmp

Filesize
64KB

Download
memory/2192-14-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-60-0x00007FF9386E0000-0x00007FF9391A1000-memory.dmp

Filesize
10.8MB

Download
memory/2192-13-0x000002849D530000-0x000002849D556000-memory.dmp

Filesize
152KB

Download
memory/2192-12-0x0000028482B90000-0x0000028482BA0000-memory.dmp

Filesize
64KB

Download
memory/2192-54-0x0000028482C70000-0x0000028482C71000-memory.dmp

Filesize
4KB

Download
memory/2192-17-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-10-0x00007FF9386E0000-0x00007FF9391A1000-memory.dmp

Filesize
10.8MB

Download
memory/2192-51-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-49-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-45-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-41-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-39-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-37-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-35-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-31-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-29-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-27-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-25-0x000002849D530000-0x000002849D550000-memory.dmp

Filesize
128KB

Download
memory/2192-11-0x0000028482B90000-0x0000028482BA0000-memory.dmp

Filesize
64KB

Download

Analysis

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