841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

Resubmissions

25/03/2024, 21:05

240325-zxdnnahe48 3

25/03/2024, 20:59

25/03/2024, 20:56

25/03/2024, 20:51

25/03/2024, 20:45

25/03/2024, 20:38

25/03/2024, 20:36

Analysis

max time kernel
30s
max time network
15s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Prefetch/APPINSTALLER.EXE-8BEA83E8.pf
Size

38KB
MD5

df84c3f2fe4e8b96c7927506d17b48d4
SHA1

a6ac95aed8052661107b79601da2064647b085df
SHA256

af2fdcccd50d1a2a6ac78da31735f63f49e688744c77c5e9285b180f2a9b3c8a
SHA512

3342512c15b1a316528cf03868aefcc6c14f4632beef4ec41ce4a2ca612485f115d33c36a9b36a46c29ab1991e299698e95059e1bf19b4a8829d20db680ea684
SSDEEP

768:J52q+OuuhkKtRzDsC4/1KAJHN1F+BuF12vqyo1Q9jbUvy:JM8lHkKOHYEF1oqyJBz

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pf_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.pf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pf_auto_file\	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2744	AcroRd32.exe
2744	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2556	2720	cmd.exe	29
PID 2720 wrote to memory of 2556	2720	cmd.exe	29
PID 2720 wrote to memory of 2556	2720	cmd.exe	29
PID 2556 wrote to memory of 2744	2556	rundll32.exe	30
PID 2556 wrote to memory of 2744	2556	rundll32.exe	30
PID 2556 wrote to memory of 2744	2556	rundll32.exe	30
PID 2556 wrote to memory of 2744	2556	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\APPINSTALLER.EXE-8BEA83E8.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\APPINSTALLER.EXE-8BEA83E8.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2556
- - 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\Prefetch\APPINSTALLER.EXE-8BEA83E8.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
48b753a4bd3bac16e5b9b2c7ad87fecb

SHA1
d833161677f6c1394db1c26280c79b2c5b49b070

SHA256
193d501008211a35b44d1698299b5cf50299a9fe4aa553533b54aa69d0348a3f

SHA512
96f788e73a48b016e017df67d9921e0cbb4bf2c0e2c727b8acf7db087a925294f406459d6840dca61f3c510642eaa0bd2f6b4e3a215f6f9cc46abbcfddafb3dc

Download Submit