Analysis
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max time kernel
93s -
max time network
121s -
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 07:40
Static task
static1
Behavioral task
behavioral1
Sample
6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe
Resource
win7-20240903-en
General
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Target
6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe
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Size
60KB
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MD5
3bfc5f40fa267b955e157718c545402a
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SHA1
9aad00ecb33780e15c68506ec4cdbd4146408fb7
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SHA256
6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1
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SHA512
783e33b1cf025df0a287e72c607bc1f648ef3d2845ec70c209e13e525b279880ff718d0cefb0614e9b6654d53f962bff500e2d03c9108919de495c8bfa9ec335
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPY:nK0GjMeQG3iaQREuVZ6ro29p4YxbKd5t
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:
6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation 6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid process 4100 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:
6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exebiudfw.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.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:
6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exedescription pid process target process PID 2872 wrote to memory of 4100 2872 6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe biudfw.exe PID 2872 wrote to memory of 4100 2872 6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe biudfw.exe PID 2872 wrote to memory of 4100 2872 6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe biudfw.exe PID 2872 wrote to memory of 3940 2872 6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe cmd.exe PID 2872 wrote to memory of 3940 2872 6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe cmd.exe PID 2872 wrote to memory of 3940 2872 6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe"C:\Users\Admin\AppData\Local\Temp\6d07c5b41747406f524ab7a64b2789df6aa7bfef6a654ef0bfb42c1accae67a1.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872 -
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:4100
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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:3940
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD598ddc0cd12a21fcf5ba214980b5408ed
SHA152f3733357d4dadae04c849f4eb79db82a9a11b0
SHA25607f935ebf526dcc7c2dde13169bf8d42c471839f0d01c23553f2182cc21f6359
SHA5124dca29c58c1b2d8fab0ca67f5dd4585e97a25921f37a6ce82bc9025643be7daca269f07e7194673301eab7d010980765385fc4d2154def0b9104342bcb8a3e73
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD51d7575de779d92a336fbd91d643a4d49
SHA158edcabfa64ab1dc03b8bc4392503c200295b683
SHA256e71bd731e13a0a43ed49a63af77bd211f6d0ef3c916318045ca66e1d752158d8
SHA51260cac5df731b97da02cc3e86ace45ac420ef2ba85a36930cd9bc64f43f62f85c0eefe42fc6fe9d6de6a944ca35138b0eb2e3d973d2dca9ba97485299609dbcde