891624714cb9e8ecc8a71ab2651568a544202bf0aacdc52d897c8222e86cfc55

Resubmissions

03-03-2024 19:24

240303-x4lxhafd96 10

03-03-2024 19:23

240303-x3wejsfd86 10

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03-03-2024 19:24

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General

Target

creal.pyc
Size

32KB
MD5

58e8befb60f3bc6e773fc663cd1ef561
SHA1

fe4cc51bb2f09ca417cd2c4397db74b2cd537b41
SHA256

14ac594228236acc07a6dd29b886645dcd6fe1c35d9b72ad357434dea71c863f
SHA512

12a8984e3fb1fdc87e1d47b00fbda92a9de4c4d819bb67e49ee16bac1cdcd4b90f23ba27781271b0659460e32484e85f6e3425b53acfda7b0ac2c0f43fa6c9df
SSDEEP

768:L8DnrY2VsfNEiyAuAfKFMrRtfqtvEwS7bnjerAroaHDsIAvN8YC06X:Ijrie3aKFcfDwS7fOPviYD6X

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\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_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\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read	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\pyc_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2852	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2852	AcroRd32.exe
2852	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2576	2100	cmd.exe	29
PID 2100 wrote to memory of 2576	2100	cmd.exe	29
PID 2100 wrote to memory of 2576	2100	cmd.exe	29
PID 2576 wrote to memory of 2852	2576	rundll32.exe	30
PID 2576 wrote to memory of 2852	2576	rundll32.exe	30
PID 2576 wrote to memory of 2852	2576	rundll32.exe	30
PID 2576 wrote to memory of 2852	2576	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\creal.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\creal.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2576
- - 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\creal.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2852

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
59bbd02019fe4ce23d9b6ab9059fad12

SHA1
fe3e12269613a0998ebb5ee31547ad7e277cc7d7

SHA256
02b883ed2fa510ae30fc43932087c79e7565b0af215e9b646220bd7be260c9d0

SHA512
95173364e3845a62094bdd6996512d9da121825639746aa96c4b72aa5f936d25b4f06553ddd6f12915a950503d0bcb6143cdc3e0e6fafb50f585991e07ad5546

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