6aceeac6f374351f34b9cd3fa36198ca5b6835b83f8c8433fcfd1c2ffb13a6b3

Analysis

max time kernel
357s
max time network
358s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 15:02

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General

Target

Creal.pyc
Size

55KB
MD5

2a27c5a2380383e0eef2ee5d7e2e355d
SHA1

7896926b0fd1fb7027b32ea9e211b531231584b8
SHA256

aac7ee2790a33f22c1dac95d9b858f6bcc4b952ff059a3c9af40f893a14be5b3
SHA512

cb9b275565142b7a8fb1f42c9101c067f02d75dadd4bdd08752c92eca4b46c71bb83b9565155c85f4a1aa58db1efea11a73346be0da71c4d71508a0fa8d2a5f5
SSDEEP

768:s7WnrgpVIVk9+X6GpX0xoWyWtXt4OXXFFYAl/fBS5AZFm/bj3+eO3Wb38f:Dr47+LtaoULXFFYAyiUj3aWb3y

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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_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-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2816	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2816	AcroRd32.exe
2816	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2732	2940	cmd.exe	29
PID 2940 wrote to memory of 2732	2940	cmd.exe	29
PID 2940 wrote to memory of 2732	2940	cmd.exe	29
PID 2732 wrote to memory of 2816	2732	rundll32.exe	30
PID 2732 wrote to memory of 2816	2732	rundll32.exe	30
PID 2732 wrote to memory of 2816	2732	rundll32.exe	30
PID 2732 wrote to memory of 2816	2732	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Creal.pyc
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\Creal.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2732
- - 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:2816

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
1b985fcdef1778bd6fd30aba5b350bb5

SHA1
5f126b43fa7fd5f5ef3035cc1823172be8af52f5

SHA256
f55a0616157d75fb038d099425a2d041b3f375506c114e0538c44576a0959da7

SHA512
34953ad5062b8d5dcae4d647c33de5c6e025252d0c26ae2d624623b06250b52c854e99b5551cf09907cb83749c863f1bad8f8f85393e78cd17fac3333809981c

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