80f39a11a179b4b0829192f0283f53b4170347f760deb4b40b346ac99bba4d87

Analysis

max time kernel
166s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
22/04/2023, 23:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

empyrean-main/builder.py
Size

8KB
MD5

6519975f9f3687ed19e5f7432bf8e351
SHA1

5a4983f62152bfd835c53edf7c82b80f6eab81ef
SHA256

6c9fe0005872fe2aa6631ce5eedce861ae6422c54426248a550426cd388ba247
SHA512

2ef798344d16d0ab4147b7c6ae6c3cc104f0a2ecc1539ebcae5b421d772f156ee831b23576e9ebb3f870fab7550ae91333c573601757daeab0ff511705a2a96f
SSDEEP

96:yCIp0AnWA8TH1h7sOQf60R03oFWGXBls2LxVSV59eSF3B0:WnmDdjGrGZ0

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 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.py	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
836	AcroRd32.exe
836	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 1692	1368	cmd.exe	29
PID 1368 wrote to memory of 1692	1368	cmd.exe	29
PID 1368 wrote to memory of 1692	1368	cmd.exe	29
PID 1692 wrote to memory of 836	1692	rundll32.exe	30
PID 1692 wrote to memory of 836	1692	rundll32.exe	30
PID 1692 wrote to memory of 836	1692	rundll32.exe	30
PID 1692 wrote to memory of 836	1692	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\empyrean-main\builder.py
1⤵
- Suspicious use of WriteProcessMemory
PID:1368
- 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\builder.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1692
- - 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\builder.py"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:836

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

Loading Replay Monitor...