e6f27d0e9530edd04a6343618eb98ea1cd748625f42aa0a7ea87b73a8bd886f7

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 17:31

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General

Target

empyrean-main/builder/util/obfuscate.py
Size

1KB
MD5

b5854b3148f23dbb9355d3a30e3315a8
SHA1

e4273fcdd3948fa75960af037bc9a916705c553c
SHA256

c9091f59845b3201e05e4294dd14c54ba77ba3e679998fb4b37ea204544a4650
SHA512

1179ac8391e9ec93c23704eaf3c630ce6fcd3dff5d372449addb7639e4bebb05328b1213b32ce99b37b0ec046b23488d9e0073b7de3129005c57d0056d49b126

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2808	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2808	AcroRd32.exe
2808	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2140	2420	cmd.exe	31
PID 2420 wrote to memory of 2140	2420	cmd.exe	31
PID 2420 wrote to memory of 2140	2420	cmd.exe	31
PID 2140 wrote to memory of 2808	2140	rundll32.exe	32
PID 2140 wrote to memory of 2808	2140	rundll32.exe	32
PID 2140 wrote to memory of 2808	2140	rundll32.exe	32
PID 2140 wrote to memory of 2808	2140	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\empyrean-main\builder\util\obfuscate.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2420
- 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\util\obfuscate.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2140
- - 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\util\obfuscate.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
8d02e67c2cd91190b4cb3f53a9def198

SHA1
5645c64e6833c0a71600c82a4d33a3b30e8214ee

SHA256
f25b051efa6d7f19f70bb1e53f5549b53c37a0d5868423bed14041356ce26e80

SHA512
d5dba74da873dd46431dc13e6f0237ae92a22d293a8584d43a32d9dd2cc75687d23983d8240a43c8e78493366a4684e77931c11cb79c065ad5370a4a90c28574

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