f6d439b28fcb5f5ba472e3fa3cc133f8067e34c05b1d358a1a61e75696c1dbad

Analysis

max time kernel
122s
max time network
126s
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.-1.-1.mca
Size

684KB
MD5

89294677e2a62001fceedf68c0070b42
SHA1

2d3bc52112c9081bd804e5372625ea26528f7039
SHA256

e2b48fbd91f0fbd4b694aa666c08269aaff0b8155dc810d9db06d524e073ad28
SHA512

35df6965422991db15c4ab6ac78f0a9f984636d6fcf6dfe9ab6f3276859f667743877a93aa31ee4171dd37cf94d00f14abd0eb97cf505f6691cfef6b07d864b8
SSDEEP

3072:vbHMsqqZEIYK+Ih/Z/p2cGeIPr2+svRGS8/niGUp0:v/SIJRBZYjeIPS+SGDiGUp0

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\mca_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mca_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mca_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.mca\ = "mca_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mca_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_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-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.mca	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mca_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2668	AcroRd32.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 2244 wrote to memory of 2644	2244	cmd.exe	29
PID 2244 wrote to memory of 2644	2244	cmd.exe	29
PID 2244 wrote to memory of 2644	2244	cmd.exe	29
PID 2644 wrote to memory of 2668	2644	rundll32.exe	30
PID 2644 wrote to memory of 2668	2644	rundll32.exe	30
PID 2644 wrote to memory of 2668	2644	rundll32.exe	30
PID 2644 wrote to memory of 2668	2644	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\cpvp\DIM1\region\r.-1.-1.mca
1⤵
- Suspicious use of WriteProcessMemory
PID:2244
- 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.-1.-1.mca
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2644
- - 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.-1.-1.mca"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - 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

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Downloads

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

Filesize
3KB

MD5
e531f6af3a964fe956a05305ad2e39ad

SHA1
34d29878d2115a02160d9b72f602abbcfe95b318

SHA256
c6aeaaecd7ee0a59dd418c8b37830761e183e76f5a33e1935e19999acbf27275

SHA512
12ba4cd4a413b5ca79b7bc4efc5a554da041965d691cb542efec9bdc94c01150aaecdf222a2e2556df1098545f672d3fc5dd4778ffd779f178bed193e3dfabb3

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