d76259ee1a43f8fd4dffdb76c4b58ae9f476c36871af0c9e9ceb335cf8a758d9

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
07-02-2024 22:46

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General

Target

creal.pyc
Size

53KB
MD5

d57cf76bc9d4158773bd335fc1ca207e
SHA1

d69be95135b1028fb6fb3043854fa94a5a97cf29
SHA256

b18befb3044fe1773846c72752ff0dd63aeb02b231972d94d23018fc51d1db9f
SHA512

082a46834c0811005073a522d26384a8bb215dfc3e5348c419deb3e2fdafde0ede57e309ee0d09fc1735273499dbfc78faa5f18981ebeea998773df40685da8b
SSDEEP

1536:2raaqMamq3YwmQyLCipnml5ZOhLQmGwCo3gX:2u7MapmJpnDSou

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-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2804	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2804	AcroRd32.exe
2804	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 2356	1964	cmd.exe	29
PID 1964 wrote to memory of 2356	1964	cmd.exe	29
PID 1964 wrote to memory of 2356	1964	cmd.exe	29
PID 2356 wrote to memory of 2804	2356	rundll32.exe	30
PID 2356 wrote to memory of 2804	2356	rundll32.exe	30
PID 2356 wrote to memory of 2804	2356	rundll32.exe	30
PID 2356 wrote to memory of 2804	2356	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\creal.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1964
- 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:2356
- - 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:2804

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
eaa4bf25ac6cc709a2c47a2140727ad6

SHA1
4c474cfda898917629eab33c7b177f1e4c431129

SHA256
a13ac0971d6426892332e839aca20a7f4134f2720ebf57a176ef96c4d53deb53

SHA512
4554f15af4a6e783d731dd4e01236d63423b87a83ca74a4071fc1e9cc6726f329f2d602e00a62f87a2b030a43d669eab78e78ee41255c792977fa48b9722e505

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