Analysis
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max time kernel
96s -
max time network
97s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-12-2024 20:30
Static task
static1
Behavioral task
behavioral1
Sample
8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe
Resource
win7-20241010-en
General
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Target
8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe
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Size
68KB
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MD5
be9048d51fe47d9767dc4dc8d6a09470
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SHA1
226c1623ded53b36835d36889329ba78ef101bf0
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SHA256
8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6
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SHA512
fb2b9c5479c1e915781fb216f2b08443f300b6b83d6e982b897d795a0008b2613585c4ae10c6bca2f95929092ee1cb67f1b734b2e8d3cfaff027eb9aa864bfd1
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SSDEEP
1536:v6fqsAPQYGmPzmZDDZrV8sMQXGkfn33n7z5WeIuhCarf:yLAYUzmdD0sMQl7d7IuhCaD
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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation 8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe -
Executes dropped EXE 1 IoCs
pid Process 1392 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 8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.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 2372 wrote to memory of 1392 2372 8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe 85 PID 2372 wrote to memory of 1392 2372 8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe 85 PID 2372 wrote to memory of 1392 2372 8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe 85 PID 2372 wrote to memory of 872 2372 8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe 86 PID 2372 wrote to memory of 872 2372 8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe 86 PID 2372 wrote to memory of 872 2372 8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe"C:\Users\Admin\AppData\Local\Temp\8b0b493dc30ddb2c1440820fb582d324c68f62cfba8c9d312f1d9496ca9a53a6N.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372 -
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:1392
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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:872
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
68KB
MD58be2e4f8b62e3733903fae94d2a0f6b3
SHA131bc8a511aefd30ef512f663ffd139426054a98e
SHA256ebf47463efdbe72a79abb994a5b34d518a0811b6aef66b6ff130958814338fdd
SHA51255b13b1bc08a8fae5ded1980ce1a69286ee0635d0fbfadb03fa9c973f40c814546ba7bce9b4f59f8531678e825fb3f072bf140d8799cbf5df0d462f13ef78736
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Filesize
512B
MD51c9b2720af0ca9528b47898d9c7f4799
SHA180495f16e333f54ecc700252323c2a7cb7d751e1
SHA256d1ea9a17b5a635a121e82e7963d3b134f74050da9debcd40c9622f50c5d38fe5
SHA5125afe876f2cd887458656b1747bce08d03f26ef286bcc83efa93e0111be856d0564bee4d6ef5637c167626bac121f7371b69c7952502d47784ac9ad568bf53eac
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Filesize
340B
MD5c9331fd4c4281435fbc27e639a0c77e1
SHA191e645c464f2f62b524d8c8d233e4d7d6cc31796
SHA25656fa8bcfcbb951b528f0d2d7915d064118ab1b69bc721ce18cad6c8932eeecb7
SHA5121e6813b8c155392e1f3df98695bf7a42211a35b0d022fbf83672b5b5e704ce800a13497ffbbbc2678c75b72b72c9440f7a495c3728142ec523cd9668b2db8a9e