Analysis
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max time kernel
95s -
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
22-11-2024 09:51
Static task
static1
Behavioral task
behavioral1
Sample
cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe
Resource
win7-20240903-en
General
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Target
cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe
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Size
60KB
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MD5
5d414a4fdf6d1283314be0eefd85c083
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SHA1
41fbc9e88a3705d7593ea323d362f4c14b802102
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SHA256
cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91
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SHA512
f5b12833533920dcc952b07965bb21017a07aa38ac974c39b564ca8d8c6c4f63983ab93657bf5da4a664bd78532e99c8d5fd9eb2d93c2e1c9f9a27e03cb9dc60
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPX:nK0GjMeQG3iaQREuVZ6ro29p4YxbKd5I
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:
cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 4520 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:
cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.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:
cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exedescription pid Process procid_target PID 3020 wrote to memory of 4520 3020 cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe 86 PID 3020 wrote to memory of 4520 3020 cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe 86 PID 3020 wrote to memory of 4520 3020 cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe 86 PID 3020 wrote to memory of 4348 3020 cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe 87 PID 3020 wrote to memory of 4348 3020 cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe 87 PID 3020 wrote to memory of 4348 3020 cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe"C:\Users\Admin\AppData\Local\Temp\cb929e02857192e8bd260cb769d09c6f38fbfb33040763b5c0350f8e939b6a91.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3020 -
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:4520
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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:4348
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD5d7f1006436d0844bf00a31df04fe3cba
SHA180b06971236b1e6aaace49537fc6890b33ba20a8
SHA256906656523b82814f72025818384ec22c0d71eecd682fe26352e8733a35ae5601
SHA512623bcee789c8fbcf4b03ab7283b8b4e72134ea491642a13f9030586e13fe295570bd7cacbf5fe1f9c62be59be638dc53fa34c37246663055a2b6ddefcf054872
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD5e0b300b4088f28ea6ced6f995c7a28cf
SHA1408273f4f508384468b0cfb736ddf4d51e4e8927
SHA256595715dcdb81a4a7a7cc09bb1564eded66a2388be25d316901e3485ca3f00148
SHA5123a3f739bb15e120366b81c5ecbb87f4d3f0a2b255098d1361d42640016c7bc9d7f9bf9795dcd54aaf4027f303d109d0fb58386ac588cc63d57815b45902e6078