Analysis
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max time kernel
93s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23/11/2024, 11:24
Static task
static1
Behavioral task
behavioral1
Sample
51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe
Resource
win7-20240903-en
General
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Target
51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe
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Size
60KB
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MD5
9137e251cd1d8cfcab6c26096ef4076f
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SHA1
362d43f85a08fe1083bd3d46dc4883d4524f38b9
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SHA256
51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35
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SHA512
66ed672c8664e182eee285e88611385ab63447b06cc8ebb66942ab443464ce2aedaf84afaab715a0b3eb7e86af5781dff6638c2dc7fb251e369bf1088e9812e4
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPz:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdrU
Malware Config
Extracted
urelas
218.54.47.76
218.54.47.77
218.54.47.74
Signatures
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Urelas family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe -
Executes dropped EXE 1 IoCs
pid Process 2480 biudfw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4748 wrote to memory of 2480 4748 51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe 82 PID 4748 wrote to memory of 2480 4748 51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe 82 PID 4748 wrote to memory of 2480 4748 51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe 82 PID 4748 wrote to memory of 1816 4748 51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe 83 PID 4748 wrote to memory of 1816 4748 51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe 83 PID 4748 wrote to memory of 1816 4748 51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe"C:\Users\Admin\AppData\Local\Temp\51add40369fbcc338e5fde1bee160ebb1b5f7d1f7c4012397f676a14e2ad2b35.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4748 -
C:\Users\Admin\AppData\Local\Temp\biudfw.exe"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2480
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "2⤵
- System Location Discovery: System Language Discovery
PID:1816
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD5b16b4eefe6535db899414c41e3c5f54a
SHA1f41ce4c472a3f1ab00f9263d436eb442d0d3fb02
SHA256cf28dae9c49c347f94742690445b308c609710f53f7cbfe683876c70012bbb5d
SHA512a34fdeaf78867736aa6f441849d16eb2813e0c1cd28f0156a0bb0dc0675cddbddd0bc68a6551678201fcb8b01db6a8a47bbb13689d18e561f6d34cd8dc1788f7
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD50173f26702d02b28d859ec83ae39c420
SHA168e67b351850b813546d22b7204c3b53d0e24675
SHA2568413a3a34d3620d9026ebabba0390faf96f4bc39452dc03a92c1fe6a77927e56
SHA5123e48529fba671f872b71dec8d8395b9bd63a3f0999c884ef15d639481f8a3ba88208ff533af610c8eb82b5bc5bd500e6968c96c3a6caf4ed092358cbf8aa9fc9