15f5346f636fa7879882f23611d46da7d7fab3e03cf75366f8721fe54804f8fd

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
16-08-2024 20:32

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General

Target

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

2KB
MD5

b972c3bd98189fef3649132428a6b5d5
SHA1

2f9a0e3bb364be7614062a716e97065df9d091c3
SHA256

ae2d7a498db4f1ea8d4cf1f71a9a60e0379a8b6e287d2c8b7cd2262f45b2d88c
SHA512

b9e9281168c684a8136f299e50293d2d0c0fc92c70ee482a7ed27f1340627c628c0347ab36ee33c72ace95595d2111ee103fbb1ead1e0dbe55a3e85dd2f644f8

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 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\py_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_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-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2872	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2872	AcroRd32.exe
2872	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2788	1984	cmd.exe	31
PID 1984 wrote to memory of 2788	1984	cmd.exe	31
PID 1984 wrote to memory of 2788	1984	cmd.exe	31
PID 2788 wrote to memory of 2872	2788	rundll32.exe	32
PID 2788 wrote to memory of 2872	2788	rundll32.exe	32
PID 2788 wrote to memory of 2872	2788	rundll32.exe	32
PID 2788 wrote to memory of 2872	2788	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\empyrean-main\builder\util\build.py
1⤵
- Suspicious use of WriteProcessMemory
PID:1984
- 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\build.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2788
- - 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\build.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2872

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
d64bcdc568af6d9966f435a599ef66c5

SHA1
dc4951c929bb9f197e9a9332fb8c8e62c7cac84d

SHA256
65bb8919ac74aa244e9f3a18dda93df63bd9f45a0f10e68b96edad060a6144a5

SHA512
1a5b739aac8bb8ff75ecd56bb4d1c89663f2de4d3831908885b95afe28e4c0ab6f450f04f4a6bb6932299144f0f3e8d3a0422165769b5c2caa7c9be20ce65c15

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