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

25/03/2024, 20:38

25/03/2024, 20:36

Analysis

max time kernel
25s
max time network
23s
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/CISCLEANUPTOOL_X64_NJQ5MDMWYZ-D5FF57E0.pf
Size

8KB
MD5

39105222976b74ccd87106f842306c95
SHA1

9f8fd9762266fc69dcdc5459f3fa3adaa5137909
SHA256

8387a3d604ce79e33dfaf1f79533669fcb700beb773d210d7f61f00c11529b4e
SHA512

e7daa204233659e9d3d378e6953656d88c2eb0f3db285c18d4b0a50d92872336e0a1ffd549be522b9dc5d1a14893567bd110685b35c4284542cf1f9f1536c9b3
SSDEEP

192:D91wfGHe2VAoBiS5uAq5BRqXbSWecuxyNhlQOsjB1SB:D9CfGhVAoEdAkPqrSWeu+116

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-1-5-21-2461186416-2307104501-1787948496-1000_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	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\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_auto_file	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

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2668	AcroRd32.exe
2668	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2540	2940	cmd.exe	29
PID 2940 wrote to memory of 2540	2940	cmd.exe	29
PID 2940 wrote to memory of 2540	2940	cmd.exe	29
PID 2540 wrote to memory of 2668	2540	rundll32.exe	31
PID 2540 wrote to memory of 2668	2540	rundll32.exe	31
PID 2540 wrote to memory of 2668	2540	rundll32.exe	31
PID 2540 wrote to memory of 2668	2540	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\CISCLEANUPTOOL_X64_NJQ5MDMWYZ-D5FF57E0.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\CISCLEANUPTOOL_X64_NJQ5MDMWYZ-D5FF57E0.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2540
- - 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\CISCLEANUPTOOL_X64_NJQ5MDMWYZ-D5FF57E0.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2668

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
41e2bff0bbdf2d94d7287bea27ad5e32

SHA1
988713b38e41eed76267ec7624f94158685bb4d0

SHA256
847b3ca30a26d2e7dd9681c4d2b30b4c72e63561a97745b826ab7ca761be0b64

SHA512
9f54ff6494681c1dcb495d818861f0c304e8bd462fb4728c9037311aa13663c0de2cede3b105f26e786949af0cc8da95956ae8e273b73ae5c20c0f78f637f739

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