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
24s
max time network
19s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:56

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General

Target

Prefetch/WINDOWSDESKTOP-RUNTIME-6.0.14-2837B2CB.pf
Size

10KB
MD5

a9e35792cd33fdef0b807ff846cac82e
SHA1

1125b930fe427ab4a98af39158b512537548303e
SHA256

b0399c0a48a37cc35cee0bec2dc5478a20767b46dff893b6df64a84a0cf12fc4
SHA512

e864ef3294876904ba2076c6cd724b888825e26cb03f6e0e1d5142a254f8131cabd173c8876b6c63600e81eb74ed6099417f93cb0634f2caa02000c5908b55f7
SSDEEP

192:pbYNjn4LTNuVZdeubIK2GDxqLlkW6gpFVqab+9qiQjKJnRYkLZV2rg:pbsja+SmrxqyW/169qQLH5

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
Set value (str)	\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_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.pf	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	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

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2576	AcroRd32.exe
2576	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 2508	1768	cmd.exe	29
PID 1768 wrote to memory of 2508	1768	cmd.exe	29
PID 1768 wrote to memory of 2508	1768	cmd.exe	29
PID 2508 wrote to memory of 2576	2508	rundll32.exe	30
PID 2508 wrote to memory of 2576	2508	rundll32.exe	30
PID 2508 wrote to memory of 2576	2508	rundll32.exe	30
PID 2508 wrote to memory of 2576	2508	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\WINDOWSDESKTOP-RUNTIME-6.0.14-2837B2CB.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:1768
- 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-6.0.14-2837B2CB.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2508
- - 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-6.0.14-2837B2CB.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2576

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
d355b2b40a88675939cb600ad84e57df

SHA1
abfd7757e709090daa5c6a4c109346f9f7221921

SHA256
23d09cdcf73afb5efda8b654e6f4271d1b1a5718f31dcf54a7a545942a964b23

SHA512
a42289c651f0d62cbb74c719a2661ae21993f528e591c78fdeba977ec717c49bd40206a2a834f903689b38fe09bf93fd002c6c933db85b9b108fe2c19699e6f9

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