Analysis
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max time kernel
145s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2024 11:13
Static task
static1
Behavioral task
behavioral1
Sample
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe
Resource
win7-20240903-en
General
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Target
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe
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Size
60KB
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MD5
7d77b4d63a4ccbece37974800633e7e5
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SHA1
53408b5932808d2617e2bd8d1dbf3283ea4bf33f
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SHA256
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f
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SHA512
90e543ba2ac81284680ca74526be7a0b35db31fd50de77cfb457af04ea8533097968369276764508bc5ec02ac8e89981d559a8eca52d89a13fce77e03cb3f439
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPa:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdJ
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:
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 3896 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:
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.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:
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exedescription pid Process procid_target PID 4828 wrote to memory of 3896 4828 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 86 PID 4828 wrote to memory of 3896 4828 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 86 PID 4828 wrote to memory of 3896 4828 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 86 PID 4828 wrote to memory of 1224 4828 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 87 PID 4828 wrote to memory of 1224 4828 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 87 PID 4828 wrote to memory of 1224 4828 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe"C:\Users\Admin\AppData\Local\Temp\4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4828 -
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:3896
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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:1224
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD54b05a8bd01ecb954f4cd48336547e9f5
SHA12a90b44052e9f831d24227f43537b29cfd793dc3
SHA25684bf8444a2b58b683c024bdf161a7a194cf4ec15d17a7c89810fb18e5f293b6f
SHA5129edebb7af9e6f2aa78cb97d9e46392ebcf8e257f2d2d5861da224086f5c023de9086a78a696e8c80c703c8855bac3c253a094e0832dbcb78a04a5685f449f510
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD5bdfa6b02f03266c08d0d82392f9565c8
SHA1b29b512cd30f1aec50a0fd01635fc7936d0311a6
SHA256a1941bcd4e253b697f04109713de086b516bb07d90156ad5fbce24f4c3f6a4ae
SHA512c5443eab2fc71540432c1423a7212c5336372134217af8b708c6862e93ec64e09837ea1510e30d9096bcf4383be85677320a3aceff0d335c9bce325024e67f18