15f5346f636fa7879882f23611d46da7d7fab3e03cf75366f8721fe54804f8fd

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 22:22

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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 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2812	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2812	AcroRd32.exe
2812	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 1028	2384	cmd.exe	31
PID 2384 wrote to memory of 1028	2384	cmd.exe	31
PID 2384 wrote to memory of 1028	2384	cmd.exe	31
PID 1028 wrote to memory of 2812	1028	rundll32.exe	32
PID 1028 wrote to memory of 2812	1028	rundll32.exe	32
PID 1028 wrote to memory of 2812	1028	rundll32.exe	32
PID 1028 wrote to memory of 2812	1028	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:2384
- 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:1028
- - 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:2812

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
d6cb815ec2ada48ed4c405d23ed53219

SHA1
ffefafd71a7b2bcdea1f921459437efe3080f56c

SHA256
1bb4c090c40e678cf67ed39855862772a8842e1479e61e9ccad569d3a134d864

SHA512
04305e1f78823f20c922d2a48c05f0cdd451fbda48c1f8e5126397b740bb370f3f59e8c3c3502ebfd0da186111bcaaced7549af75b1a1670bd2c53ec071782ea

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