oblique | c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a

General

Target

c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a.exe
Size

5.3MB
MD5

71fc21df40770009ae3c7b3b565831e3
SHA1

7d518f1e7ebf3b45f7f6f8d63262bf48e202783f
SHA256

c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a
SHA512

3598da724fb6590da6c2831de491944ec1b6cd4062f2223dd41bf20e0c7708ac3527cbae6d0172d818c2f3b85cf3c29c148562b316e122078dd696925f8f76cd

Score

10^/10

oblique trojan

Malware Config

Signatures

ObliqueRAT
Remote Access Trojan discovered in early 2020.
trojan oblique

Executes dropped EXE 3 IoCs

pid	Process
2396	frame.exe
2752	lphsi.exe
3508	hrss.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\script.lnk	hrss.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings	c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2604	vlc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2604	vlc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2604	vlc.exe
Token: SeIncBasePriorityPrivilege	2604	vlc.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe

Suspicious use of SendNotifyMessage 8 IoCs

pid	Process
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe
2604	vlc.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3212 wrote to memory of 2396	3212	c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a.exe	75
PID 3212 wrote to memory of 2396	3212	c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a.exe	75
PID 3212 wrote to memory of 2396	3212	c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a.exe	75
PID 3212 wrote to memory of 2604	3212	c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a.exe	76
PID 3212 wrote to memory of 2604	3212	c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a.exe	76
PID 2396 wrote to memory of 2752	2396	frame.exe	77
PID 2396 wrote to memory of 2752	2396	frame.exe	77
PID 2396 wrote to memory of 2752	2396	frame.exe	77
PID 2396 wrote to memory of 3508	2396	frame.exe	78
PID 2396 wrote to memory of 3508	2396	frame.exe	78
PID 2396 wrote to memory of 3508	2396	frame.exe	78

C:\Users\Admin\AppData\Local\Temp\c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a.exe
"C:\Users\Admin\AppData\Local\Temp\c95d2caed83ec5a321a4b607947f103af193db95e920a426fa5ff339eebef19a.exe"
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3212
- C:\Users\Public\Video\frame.exe
  "C:\Users\Public\Video\frame.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Users\Public\Video\lphsi.exe
    "C:\Users\Public\Video\lphsi.exe"
    3⤵
    - Executes dropped EXE
    PID:2752
- - C:\Users\Public\Video\hrss.exe
    "C:\Users\Public\Video\hrss.exe"
    3⤵
    - Executes dropped EXE
    - Drops startup file
    PID:3508
- C:\Program Files\VideoLAN\VLC\vlc.exe
  "C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Public\Video\movie.mp4"
  2⤵
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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