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
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:59

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General

Target

Prefetch/UPFC.EXE-89D4FAEB.pf
Size

3KB
MD5

6cfedbda039476a4ad0bc89a39ece733
SHA1

e35ea1f98ce8e4241d95d9ce95f8ea9f7e7d1520
SHA256

41f0a0fbe8851319e36b840215c383b99e5785a2734264b56fe547a461f0d9b1
SHA512

4d3d89a5f7feeeac8e733e14afdbc1556dc06499101b61e73cb951fe18e90a956839d6d77c2d01b12ea6fbc7f39f09df025a96b3a18192e388baa485903a6627

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-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pf_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pf_auto_file\	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2544	AcroRd32.exe
2544	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2636	2860	cmd.exe	29
PID 2860 wrote to memory of 2636	2860	cmd.exe	29
PID 2860 wrote to memory of 2636	2860	cmd.exe	29
PID 2636 wrote to memory of 2544	2636	rundll32.exe	30
PID 2636 wrote to memory of 2544	2636	rundll32.exe	30
PID 2636 wrote to memory of 2544	2636	rundll32.exe	30
PID 2636 wrote to memory of 2544	2636	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\UPFC.EXE-89D4FAEB.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\UPFC.EXE-89D4FAEB.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2636
- - 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\UPFC.EXE-89D4FAEB.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2544

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
569f5598956f925e3b5af0bcd46d84e2

SHA1
934915275e4c523aa2a4a61258e802bc41c0f1e2

SHA256
5b45c19dd723f1d963b252445dfdaee6057a13a202deb395f036c65650939b21

SHA512
d3128cd860b034b1922ab1cbac669c1326ea9e061f1fa6d6c6ae81c40c7673d5e3deca474ed235f7cd6399d9058f8020daf21d826e758cb4b8f3a614ae62ccc4

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