15f5346f636fa7879882f23611d46da7d7fab3e03cf75366f8721fe54804f8fd

Analysis

max time kernel
120s
max time network
127s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
04/06/2024, 01:48

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General

Target
empyrean-main/builder/main.py
Size 1KB
Sample240604-b78d1shb7v
SHA256 babf25f3a055d02fae10d5b68b909bd60cfbb7772eb726bd7d617c488db221d0
MD5 ba1fda5f75f9c66d0cc0c0b8c765f3b5
SHA1 24910918fea9ce6fea7e5fb8789c0af5269d867a
SHA512 d9cc84eabd33bafcf0348f2bd9c421baa1559a0a6aa871c66826645fc01fba19491647b93a54baedc6f3e1da1c88546455d0e99b045837a6464494c2953de025
MD5 SHA1 SHA512

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2952	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2952	AcroRd32.exe
2952	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 2664	2740	cmd.exe	29
PID 2740 wrote to memory of 2664	2740	cmd.exe	29
PID 2740 wrote to memory of 2664	2740	cmd.exe	29
PID 2664 wrote to memory of 2952	2664	rundll32.exe	30
PID 2664 wrote to memory of 2952	2664	rundll32.exe	30
PID 2664 wrote to memory of 2952	2664	rundll32.exe	30
PID 2664 wrote to memory of 2952	2664	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\empyrean-main\builder\main.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2740
- 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\main.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2664
- - 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\main.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2952

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

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 96f5e4416a22766353fe57680a668a9f6dc83442f269cb3c01c30edc8df5f0b1
MD5 10674e0b2f65213682500e1e48eba41b
SHA1 463d58aed5a2b5c8fe2c56c43ac57c198dda5f2a
SHA512 2e09d9311419fc0be1ad55bd9049b4862798e278a2e84148a9dbbfbd157937268b66c09dc23d456f82b0143887ba27d2485262dd8530a94f464fcf5c66f69683
MD5 SHA1 SHA512

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