Analysis
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max time kernel
92s -
max time network
93s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
24-11-2024 06:19
Static task
static1
Behavioral task
behavioral1
Sample
e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe
Resource
win7-20241023-en
General
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Target
e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe
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Size
60KB
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MD5
b83aaad35c124c98ade50d025f623dad
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SHA1
5c8a2274cebd96d442bcd439421be3328a1e3edc
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SHA256
e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27
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SHA512
375d0547a77166f4b77e802103593ab95cfbffc588e4b3ee102275448ec1edc688c3325f9c60d292827568376b11908fdcd1a674f73617e49d1c154a293eaa9b
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPZ:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdV8
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:
e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 4268 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:
e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.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:
e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exedescription pid Process procid_target PID 3080 wrote to memory of 4268 3080 e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe 86 PID 3080 wrote to memory of 4268 3080 e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe 86 PID 3080 wrote to memory of 4268 3080 e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe 86 PID 3080 wrote to memory of 2752 3080 e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe 87 PID 3080 wrote to memory of 2752 3080 e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe 87 PID 3080 wrote to memory of 2752 3080 e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe"C:\Users\Admin\AppData\Local\Temp\e39f6e841b5d696691b5f5b7186f60cb056230b9fdab8cda99e3882b1bc03b27.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3080 -
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:4268
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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:2752
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD536dda5c5a1534db738f28b5d0d81cc97
SHA118c700c86542340e4e983d7aafd3abfd634fb797
SHA256e8873376ab7749ece7b63a54435af0120d0c256d08228d346bcd49a5b6b188c2
SHA5127f18e98152c5ed3767b99d55cf25aa2e90ebb829f3c29d33a960e0ec39724dd1350e2fffb415c69155b9a265c149dee93f138f5d69c34740a11581b1e2324c5a
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD5d21775c70c53563ef1d372721afa1fa2
SHA172f589fd2ae4bea28d5c074abaf3911efc1c8738
SHA25672605354083f38342ce2fe5a82e8bf3c0e50e8b57e9c6dd95b785ed794b36f0d
SHA51233f9d28f09ba2d3abcc0b7fa1b04f4679d1abb99aba8622aaeaf82a0ff4c9debe05dd9f3ed88ff5c94fd55f7535d75b16fb25f2f009ab0ce1756be54eed5cade