f6d439b28fcb5f5ba472e3fa3cc133f8067e34c05b1d358a1a61e75696c1dbad

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 16:20

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General

Target

cpvp/DIM1/region/r.0.-1.mca
Size

772KB
MD5

d5b9fb035b23160883ed41cc0d2f564f
SHA1

330d5e2ca1e0be46f59093f10097add76452a8d8
SHA256

9fe1a0d1d9cec0343926c75d66722811148005b6ecc8f27771736b68366e0522
SHA512

086409075f03d9f420103a0756a4155a06a4e95352092fb3b40dfb46ae5351db6a22ea2a7e21b4317831f4c20cf41b2ac9e19a4cb5d897a232f2b9dc1e01349d
SSDEEP

3072:ZjOqr59wHmPmd35UII7B5n4T9wytGwiK+mWKthAZWL:rrqA7B5a96w5SKaU

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2520	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2520	AcroRd32.exe
2520	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 2692	2884	cmd.exe	29
PID 2884 wrote to memory of 2692	2884	cmd.exe	29
PID 2884 wrote to memory of 2692	2884	cmd.exe	29
PID 2692 wrote to memory of 2520	2692	rundll32.exe	30
PID 2692 wrote to memory of 2520	2692	rundll32.exe	30
PID 2692 wrote to memory of 2520	2692	rundll32.exe	30
PID 2692 wrote to memory of 2520	2692	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\cpvp\DIM1\region\r.0.-1.mca
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\cpvp\DIM1\region\r.0.-1.mca
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2692
- - 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\cpvp\DIM1\region\r.0.-1.mca"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2520

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

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Downloads

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

Filesize
3KB

MD5
1f5289117a6a6c1821f45c508e9576ec

SHA1
8e4daeb34ed2d369f945f10d0c459303c3a11a3d

SHA256
3e10fafc683f786b9c27cf1a737671120c09bbee3a0812a66b3bc4a9f6cdd4ca

SHA512
b72d17a26b7ca06506ba74e9a6d5b4b92eccbadfd9199a61554133bf80df7f42d085313548be58d178f374945212446d9929519321842b3e3974d994ebe423da

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