Analysis
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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
Behavioral task
behavioral1
Sample
041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe
Resource
win7-20240903-en
General
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Target
041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe
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Size
510KB
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MD5
27da3226cd4d9c5d77ff60f9663ea616
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SHA1
4361864077e17cc22cf9fed5133dbbf655b3f615
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SHA256
041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772
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SHA512
24f877cc2c2b5674de8d1b03f713196ac9dd5c31524785b3f82a8472509050dc67a5ad6d70ccd813fa7bc22ffbf255bfdb7b25fe4cdacae72b8f67f21cf9ddfd
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SSDEEP
12288:VOv5jKhsfoPA+yeVKUCUxP4C902bdRtJJPiVjt6URoWqrBbIOQa:Vq5TfcdHj4fmbEoW6BbEa
Malware Config
Signatures
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Drops startup file 1 IoCs
Processes:
obtenebrate.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\obtenebrate.vbs obtenebrate.exe -
Executes dropped EXE 1 IoCs
Processes:
obtenebrate.exepid process 2696 obtenebrate.exe -
AutoIT Executable 2 IoCs
AutoIT scripts compiled to PE executables.
Processes:
resource yara_rule behavioral2/memory/4224-14-0x0000000000270000-0x00000000003A1000-memory.dmp autoit_exe behavioral2/memory/2696-25-0x00000000008F0000-0x0000000000A21000-memory.dmp autoit_exe -
Processes:
resource yara_rule behavioral2/memory/4224-0-0x0000000000270000-0x00000000003A1000-memory.dmp upx C:\Users\Admin\AppData\Local\chordates\obtenebrate.exe 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
Processes:
WerFault.exepid pid_target process target process 4572 2696 WerFault.exe obtenebrate.exe -
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.
Processes:
041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exeobtenebrate.exedescription 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
Processes:
041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exeobtenebrate.exepid process 4224 041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe 4224 041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe 2696 obtenebrate.exe 2696 obtenebrate.exe -
Suspicious use of SendNotifyMessage 4 IoCs
Processes:
041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exeobtenebrate.exepid process 4224 041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe 4224 041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe 2696 obtenebrate.exe 2696 obtenebrate.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exeobtenebrate.exedescription pid process target process PID 4224 wrote to memory of 2696 4224 041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe obtenebrate.exe PID 4224 wrote to memory of 2696 4224 041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe obtenebrate.exe PID 4224 wrote to memory of 2696 4224 041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772.exe obtenebrate.exe PID 2696 wrote to memory of 4044 2696 obtenebrate.exe svchost.exe PID 2696 wrote to memory of 4044 2696 obtenebrate.exe svchost.exe PID 2696 wrote to memory of 4044 2696 obtenebrate.exe svchost.exe
Processes
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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
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2696 -s 7203⤵
- Program crash
PID:4572
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2696 -ip 26961⤵PID:4492
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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Filesize
510KB
MD527da3226cd4d9c5d77ff60f9663ea616
SHA14361864077e17cc22cf9fed5133dbbf655b3f615
SHA256041c73bd4c470d02db20ef282a1a8550f8987e362cbd07fc3828c14873a7f772
SHA51224f877cc2c2b5674de8d1b03f713196ac9dd5c31524785b3f82a8472509050dc67a5ad6d70ccd813fa7bc22ffbf255bfdb7b25fe4cdacae72b8f67f21cf9ddfd