b2c2a9c32a27fe5c3872a0a96f96fad6597e4f8f5242ec90a7c2b69a1b409bb0

Analysis

max time kernel
264s
max time network
322s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 08:22

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General

Target

empyrean-main/src/main.py
Size

1KB
MD5

db5386b5f9edfc7500d0508fc49a9a59
SHA1

4c79b803e2090d86dd38c7671b1a9b5322b3cf3a
SHA256

ddfbeb221f72eaa4c8e2e4dcdf604307dcfd0d9168c0837a10110cd809f82060
SHA512

a5c6435242930285e41e98e7284fdb0708f654b849e697bd10e8ad12631d5e83e647b775a1bf6d61b9a2958d4969c475055ff3071affcefceed3234b92d69634

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-1-5-21-2461186416-2307104501-1787948496-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\py_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
1764	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1764	AcroRd32.exe
1764	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 1124	2324	cmd.exe	28
PID 2324 wrote to memory of 1124	2324	cmd.exe	28
PID 2324 wrote to memory of 1124	2324	cmd.exe	28
PID 1124 wrote to memory of 1764	1124	rundll32.exe	29
PID 1124 wrote to memory of 1764	1124	rundll32.exe	29
PID 1124 wrote to memory of 1764	1124	rundll32.exe	29
PID 1124 wrote to memory of 1764	1124	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\empyrean-main\src\main.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\empyrean-main\src\main.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1124
- - 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\empyrean-main\src\main.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1764

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
e5cec63e896e20619d9194c236ace605

SHA1
d4c3579159ce0230f889ce59eab0e4cd1a1f44d7

SHA256
7f5f79f202886b4c0b3759524bfb45d348baa1683abf88f4180c03e42380d92a

SHA512
9e782ff8a25305657123eaa7e54ec10d5a6e666aac6d00df7200beb6f7aed85b2118c285924c35f2dbf5549f37bfc070138faa0dc02c2c7ce0bebb8eda397062

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