Analysis
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max time kernel
95s -
max time network
96s -
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 01:30
Static task
static1
Behavioral task
behavioral1
Sample
12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe
Resource
win7-20240729-en
General
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Target
12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe
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Size
60KB
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MD5
a927f51db650cbcf74e7447e02e227c7
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SHA1
7c4196940da9f574d69118aee214f245de4808d7
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SHA256
12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66
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SHA512
a9cad513c3dd2dba9c98bd768872631314ee5c5c273eaef752684c274afda7d179b02c581aed2a321f358b97f96190c914a8ad3a18828d2453648069518a450a
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPX:nK0GjMeQG3iaQREuVZ6ro29p4YxbKde
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.
Processes:
12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid process 3944 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.
Processes:
12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exebiudfw.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.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
Processes:
12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exedescription pid process target process PID 916 wrote to memory of 3944 916 12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe biudfw.exe PID 916 wrote to memory of 3944 916 12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe biudfw.exe PID 916 wrote to memory of 3944 916 12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe biudfw.exe PID 916 wrote to memory of 2292 916 12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe cmd.exe PID 916 wrote to memory of 2292 916 12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe cmd.exe PID 916 wrote to memory of 2292 916 12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe"C:\Users\Admin\AppData\Local\Temp\12594c2eaf2f1bfdd604b5429911b9a00daf3c481d77bb67deeb312557905a66.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:916 -
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:3944
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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:2292
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD56aa3c744a370cd8bb6ad98bfd64c91ac
SHA1273ef59d48716a6a6417251c5b4d05c06fd40fed
SHA25689e1a48377b1d842fe3931f262cd5afab32159970b730e8766ede2575af03d20
SHA5125ba79bab0c3a8100459ec1094eb7cd270c1cb6b1070b182394318f404362edbf5ba17cdf4af56be7c0231c3067fedaab715cd945f3eb2599e6f0fbefad66720a
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD517feba6713a792d78996d682c0433701
SHA1efdeea5d61de31bcca75383907526427ce46d499
SHA256dbbb1aba63c62707798c3f46716f3247c308b1a4bb3477eb353ae3a0fff6b404
SHA5123ac6def2f877c903ae39b598780b18b4453a7049b2e8c4f5d4d22321ee78f7c57e71e047135bc0bc0f0a777892af6267502df48e93a146e0d6d7baac66c7fb9a