oski | 43460a1724b2521dd5e97c68c16edfce9caf22d49452efd956a64db91b5935a7

General

Target

5f0969cdd00801051ff7f2afd2343ff3.exe
Size

789KB
MD5

5f0969cdd00801051ff7f2afd2343ff3
SHA1

6bbf42e0b05b025e8162404435eb1b25cc07d5f8
SHA256

43460a1724b2521dd5e97c68c16edfce9caf22d49452efd956a64db91b5935a7
SHA512

0b89a31ae863641dd0b87a7cedb566241e0df84a685f7df73e04c14580b16f80d3042eeaae65a2a09f2772187ff73d0d833f2cfad0663ba4b4a1e8a66c23a9dd
SSDEEP

24576:seV+CQ38aT1m7NKsDTxe1/6hTMLevYWhzDcUjMFA:DV+CQ33T1m70sDTkhYM

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

C2

tunqyuindia.com/mar3/

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 2880 set thread context of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1860	3044	WerFault.exe	33

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2592	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2880	5f0969cdd00801051ff7f2afd2343ff3.exe
2880	5f0969cdd00801051ff7f2afd2343ff3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2880	5f0969cdd00801051ff7f2afd2343ff3.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2592	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	30
PID 2880 wrote to memory of 2592	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	30
PID 2880 wrote to memory of 2592	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	30
PID 2880 wrote to memory of 2592	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	30
PID 2880 wrote to memory of 2940	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	32
PID 2880 wrote to memory of 2940	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	32
PID 2880 wrote to memory of 2940	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	32
PID 2880 wrote to memory of 2940	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	32
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 2880 wrote to memory of 3044	2880	5f0969cdd00801051ff7f2afd2343ff3.exe	33
PID 3044 wrote to memory of 1860	3044	5f0969cdd00801051ff7f2afd2343ff3.exe	34
PID 3044 wrote to memory of 1860	3044	5f0969cdd00801051ff7f2afd2343ff3.exe	34
PID 3044 wrote to memory of 1860	3044	5f0969cdd00801051ff7f2afd2343ff3.exe	34
PID 3044 wrote to memory of 1860	3044	5f0969cdd00801051ff7f2afd2343ff3.exe	34

C:\Users\Admin\AppData\Local\Temp\5f0969cdd00801051ff7f2afd2343ff3.exe
"C:\Users\Admin\AppData\Local\Temp\5f0969cdd00801051ff7f2afd2343ff3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vTKyEeK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1BEA.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2592
- C:\Users\Admin\AppData\Local\Temp\5f0969cdd00801051ff7f2afd2343ff3.exe
  "C:\Users\Admin\AppData\Local\Temp\5f0969cdd00801051ff7f2afd2343ff3.exe"
  2⤵
  PID:2940
- C:\Users\Admin\AppData\Local\Temp\5f0969cdd00801051ff7f2afd2343ff3.exe
  "C:\Users\Admin\AppData\Local\Temp\5f0969cdd00801051ff7f2afd2343ff3.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 112
    3⤵
    - Program crash
    PID:1860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1BEA.tmp

Filesize
1KB

MD5
e770a473ca84fe3e9e922c7225948c42

SHA1
161a556c636e4073fcde9e75df3a0100441597e3

SHA256
a3547a65c1d5f47e841c514c438cfc33ce6ce70468810fc35490205a7acbcfa3

SHA512
f3b33ac3b69eb229bcf4f325f01c1ec6ea3526beea4fe3e15c305b05571146114ab851f8f91f56668429f35d0e9e889f8af06223e1fb47a744171324ddfe7ef5

Download Submit
memory/2880-8-0x0000000000AA0000-0x0000000000AD8000-memory.dmp

Filesize
224KB

Download
memory/2880-3-0x0000000001260000-0x00000000012A0000-memory.dmp

Filesize
256KB

Download
memory/2880-1-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2880-4-0x00000000003F0000-0x0000000000406000-memory.dmp

Filesize
88KB

Download
memory/2880-5-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2880-6-0x0000000001260000-0x00000000012A0000-memory.dmp

Filesize
256KB

Download
memory/2880-7-0x000000000D270000-0x000000000D30C000-memory.dmp

Filesize
624KB

Download
memory/2880-0-0x0000000001340000-0x000000000140A000-memory.dmp

Filesize
808KB

Download
memory/2880-28-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2880-2-0x0000000000B30000-0x0000000000BC0000-memory.dmp

Filesize
576KB

Download
memory/3044-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3044-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3044-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3044-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3044-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3044-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3044-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3044-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads