ee0c0dc46fce3803603995d998a1a09618f743e88bf26f3a256b5555a72ef978

Analysis

max time kernel
151s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/11/2022, 15:04

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General

Target

gonb1723/Confuser.class
Size

6KB
MD5

44f368cbabc991a17c7db91043c36564
SHA1

0eb73a30ba50732b4791bf1c912ee1d35e29e31e
SHA256

7f8ca579a13728dc29a3d6f37ca8a887be26ff0a265af30a18bfc2ff78c1bc30
SHA512

a8ab7090957d1fb263a8709d2fd25673a792bd202f2265eb463c1cd373cfe902e1fd0fca190c4b8ad40c82a7c817dacd21679f0f514551e9ef51e5f3035c0e00
SSDEEP

192:f00zTUZyX4Kwmr5QRHMW9iUvCtc/NFfHN4CylSW:f00zTUZyX4Kwmr5QRHM27fH+D

Score

3^/10

Malware Config

Signatures

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 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.class	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
468	AcroRd32.exe
468	AcroRd32.exe
468	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 112 wrote to memory of 1184	112	cmd.exe	28
PID 112 wrote to memory of 1184	112	cmd.exe	28
PID 112 wrote to memory of 1184	112	cmd.exe	28
PID 1184 wrote to memory of 468	1184	rundll32.exe	29
PID 1184 wrote to memory of 468	1184	rundll32.exe	29
PID 1184 wrote to memory of 468	1184	rundll32.exe	29
PID 1184 wrote to memory of 468	1184	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\gonb1723\Confuser.class
1⤵
- Suspicious use of WriteProcessMemory
PID:112
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\gonb1723\Confuser.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1184
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\gonb1723\Confuser.class"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:468

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/112-54-0x000007FEFB5D1000-0x000007FEFB5D3000-memory.dmp

Filesize
8KB

Download
memory/468-82-0x0000000074C11000-0x0000000074C13000-memory.dmp

Filesize
8KB

Download