841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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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

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25/03/2024, 20:36

Analysis

max time kernel
17s
max time network
18s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:51

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General

Target

Prefetch/COMPPKGSRV.EXE-4780F0C1.pf
Size

5KB
MD5

bbd6689813cdad6672ceda4d10529dda
SHA1

3d51a75c3449f5151de2b0792b41e3703ab5e971
SHA256

c4cac66ece57d2eaedbd008bf5bcaa650d6175901786c733e8754b6c6d62645b
SHA512

cba6012c6d4e2fc24ce9a35020d14ac1e4a66fd067b2557ff781cc99cf68e7030588086b01d3afc1bce668e959cd5339c3ea6fc30acf1ff6391e7822d04d8d2f
SSDEEP

96:oP2YSfPurVeEDcarJqwoqY9ZP+dNz+fMlSAn/h3xmtnWSuPzMSqMFISgo9/HK:oPGHu5eEncwoqCP+z+f6d1xmtWPzMSqD

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-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2632	AcroRd32.exe
2632	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 2484	2884	cmd.exe	29
PID 2884 wrote to memory of 2484	2884	cmd.exe	29
PID 2884 wrote to memory of 2484	2884	cmd.exe	29
PID 2484 wrote to memory of 2632	2484	rundll32.exe	30
PID 2484 wrote to memory of 2632	2484	rundll32.exe	30
PID 2484 wrote to memory of 2632	2484	rundll32.exe	30
PID 2484 wrote to memory of 2632	2484	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\COMPPKGSRV.EXE-4780F0C1.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\COMPPKGSRV.EXE-4780F0C1.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2484
- - 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\COMPPKGSRV.EXE-4780F0C1.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2632

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

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Downloads

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

Filesize
3KB

MD5
5a08c14a00cdcf62e583b4ff0cb237b7

SHA1
1c528bc79a11e6e9a066186ed8012b3a1f9f3623

SHA256
a121c3bfa1a8c280fa9b7b17aba57967d07f9d3969f3f7b6d8d6a38bfa791782

SHA512
440c54c1a262c79d92dee29f60234acc3595588e5ff89cb9701a23eb996ce6a50ac32c464bfe301f4ba0236a0f6966e174240a9701246e6601effeceaf3812e3

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