482c560821dff63e878f6a8adf9e900a4e3756bd392ff92d37c135bd62e47de1

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 06:18

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General

Target

Stub.pyc
Size

872KB
MD5

28d98606a7d2a30f67a5aaeb96d7d1e4
SHA1

efad1e8560d0dd3b21fefa2c671504224998aea9
SHA256

61d574ffce1ea546c31a6a68d0bfb943b355b3a643c06c9e1b17cbae1637e010
SHA512

6f40d175595cf5d0729d7d529bf10f1dcd194c33ae1d20e05a186643398deaea9731015a4b1e15f40e77c4ec54b5dc2fa7e2816b1afa4d03cdd76e82b5ce71f6
SSDEEP

12288:7Nk8Pa3QR3ojyjOAWHfeHpZ4E6+rdYJggiSFCGRln8vkfAL3m/RIPip1ZmBQ:Z9uQR3/CAW/eJZ10iqP/q3CIqp1P

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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
2628	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2628	AcroRd32.exe
2628	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 2792	2896	cmd.exe	29
PID 2896 wrote to memory of 2792	2896	cmd.exe	29
PID 2896 wrote to memory of 2792	2896	cmd.exe	29
PID 2792 wrote to memory of 2628	2792	rundll32.exe	30
PID 2792 wrote to memory of 2628	2792	rundll32.exe	30
PID 2792 wrote to memory of 2628	2792	rundll32.exe	30
PID 2792 wrote to memory of 2628	2792	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Stub.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2792
- - 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\Stub.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2628

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
44565c0d5dc117fe72a3aceb5a96897e

SHA1
da38a98b3988b57a464a28ac6b648c65cd7716a4

SHA256
70b8079bf35b991036de9aacf1f61cb4a6b7ca748b818fddbbf5e3bec82d8273

SHA512
49c7fe1e9f42a595817dd1cdcf54c36b4255ba701c79ff13f682e82f7182cc8f5656d3c5b10d7c385fe1de33ea1ffe0daea768266e9cfe7326a244a581decdf4

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