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
18s
max time network
16s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:56

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General

Target

Prefetch/WINDOWSDESKTOP-RUNTIME-6.0.14-B2B0C644.pf
Size

7KB
MD5

857487e67b301bfcfe83a4567036b677
SHA1

27507128c7f5df5f455070ddb0756e83e0921d0e
SHA256

6ac8a77a5c8620a0ff20510d2489b16de7359f129bfa47848d48d1ae2247a224
SHA512

cf4ebd596b70a109ab23b55349b396806dbf28d9e27a2b02a055a6db74a559ef178933074d6032f18c1fc48b4c7667a4c4821f1c39554d44429d68df1a7df7dd
SSDEEP

192:QKeHwcIg2q1Jl2C1f5FIWAJn55PNtiF3BG:hnRq1Jl2Cdf6lSNE

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2860	AcroRd32.exe
2860	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2304	1940	cmd.exe	29
PID 1940 wrote to memory of 2304	1940	cmd.exe	29
PID 1940 wrote to memory of 2304	1940	cmd.exe	29
PID 2304 wrote to memory of 2860	2304	rundll32.exe	30
PID 2304 wrote to memory of 2860	2304	rundll32.exe	30
PID 2304 wrote to memory of 2860	2304	rundll32.exe	30
PID 2304 wrote to memory of 2860	2304	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\WINDOWSDESKTOP-RUNTIME-6.0.14-B2B0C644.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\WINDOWSDESKTOP-RUNTIME-6.0.14-B2B0C644.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2304
- - 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\WINDOWSDESKTOP-RUNTIME-6.0.14-B2B0C644.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2860

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
9d26c76038822b693e72b230690aef50

SHA1
039f39a8d90d3f35414f483001e02a2d11f9923b

SHA256
a8a2c2307f0ebc1c8faa7cc7a12b7fe87336addad63af8ef7bf98510cb7b07c6

SHA512
6d2e630ce7f11c9cccbd58dd0e729d045209ab344aaaa133b706fa23ee8757724418a76a12fa1eaabec3691e156a11a0050af21eedeef1d4f5af8b5d153cfdb4

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