041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 02:03

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General

Target

041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe
Size

510KB
MD5

27da3226cd4d9c5d77ff60f9663ea616
SHA1

4361864077e17cc22cf9fed5133dbbf655b3f615
SHA256

041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772
SHA512

24f877cc2c2b5674de8d1b03f713196ac9dd5c31524785b3f82a8472509050dc67a5ad6d70ccd813fa7bc22ffbf255bfdb7b25fe4cdacae72b8f67f21cf9ddfd
SSDEEP

12288:VOv5jKhsfoPA+yeVKUCUxP4C902bdRtJJPiVjt6URoWqrBbIOQa:Vq5TfcdHj4fmbEoW6BbEa

Score

7^/10

discovery upx

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\obtenebrate.vbs	obtenebrate.exe

Executes dropped EXE 1 IoCs

pid	Process
2696	obtenebrate.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4224-14-0x0000000000270000-0x00000000003A1000-memory.dmp	autoit_exe
behavioral2/memory/2696-25-0x00000000008F0000-0x0000000000A21000-memory.dmp	autoit_exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4224-0-0x0000000000270000-0x00000000003A1000-memory.dmp	upx
behavioral2/files/0x000b000000023b60-10.dat	upx
behavioral2/memory/2696-12-0x00000000008F0000-0x0000000000A21000-memory.dmp	upx
behavioral2/memory/4224-14-0x0000000000270000-0x00000000003A1000-memory.dmp	upx
behavioral2/memory/2696-25-0x00000000008F0000-0x0000000000A21000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4572	2696	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 2 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	041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	obtenebrate.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
4224	041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe
4224	041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe
2696	obtenebrate.exe
2696	obtenebrate.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
4224	041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe
4224	041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe
2696	obtenebrate.exe
2696	obtenebrate.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4224 wrote to memory of 2696	4224	041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe	83
PID 4224 wrote to memory of 2696	4224	041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe	83
PID 4224 wrote to memory of 2696	4224	041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe	83
PID 2696 wrote to memory of 4044	2696	obtenebrate.exe	84
PID 2696 wrote to memory of 4044	2696	obtenebrate.exe	84
PID 2696 wrote to memory of 4044	2696	obtenebrate.exe	84

C:\Users\Admin\AppData\Local\Temp\041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe
"C:\Users\Admin\AppData\Local\Temp\041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Users\Admin\AppData\Local\chordates\obtenebrate.exe
  "C:\Users\Admin\AppData\Local\Temp\041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe"
    3⤵
    PID:4044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2696 -s 720
    3⤵
    - Program crash
    PID:4572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2696 -ip 2696
1⤵
PID:4492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\chordates\obtenebrate.exe

Filesize
510KB

MD5
27da3226cd4d9c5d77ff60f9663ea616

SHA1
4361864077e17cc22cf9fed5133dbbf655b3f615

SHA256
041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772

SHA512
24f877cc2c2b5674de8d1b03f713196ac9dd5c31524785b3f82a8472509050dc67a5ad6d70ccd813fa7bc22ffbf255bfdb7b25fe4cdacae72b8f67f21cf9ddfd

Download Submit
memory/2696-12-0x00000000008F0000-0x0000000000A21000-memory.dmp

Filesize
1.2MB

Download
memory/2696-22-0x0000000000F90000-0x0000000001390000-memory.dmp

Filesize
4.0MB

Download
memory/2696-25-0x00000000008F0000-0x0000000000A21000-memory.dmp

Filesize
1.2MB

Download
memory/4224-0-0x0000000000270000-0x00000000003A1000-memory.dmp

Filesize
1.2MB

Download
memory/4224-7-0x0000000000A80000-0x0000000000E80000-memory.dmp

Filesize
4.0MB

Download
memory/4224-14-0x0000000000270000-0x00000000003A1000-memory.dmp

Filesize
1.2MB

Download