Analysis
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max time kernel
94s -
max time network
95s -
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 12:10
Static task
static1
Behavioral task
behavioral1
Sample
d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe
Resource
win7-20240903-en
General
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Target
d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe
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Size
59KB
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MD5
fca7aaf481a36d68c5f44524aad67908
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SHA1
280e3b2253bcede967a9b744d229b8dfea2ef54c
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SHA256
d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40
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SHA512
5368e38d6f4d7090ac2bf12bde3d6657c7026463f85ad9559a1a25f8af81b344269b5bba30170184b04d5bbadcf787afa403b1e342f5ac960ac1ae1e9b55eafb
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPt:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdc
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:
d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 3976 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:
d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.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:
d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exedescription pid Process procid_target PID 2140 wrote to memory of 3976 2140 d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe 85 PID 2140 wrote to memory of 3976 2140 d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe 85 PID 2140 wrote to memory of 3976 2140 d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe 85 PID 2140 wrote to memory of 4612 2140 d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe 86 PID 2140 wrote to memory of 4612 2140 d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe 86 PID 2140 wrote to memory of 4612 2140 d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe"C:\Users\Admin\AppData\Local\Temp\d695c3effa1b1e6ca84f8f6b6353fa3783d7098170b24423261d3bdacf20ee40.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2140 -
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:3976
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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:4612
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
59KB
MD539e4629d7d52be814619aa50c45c9641
SHA1c16c4cc3289bb7dfdcfb638f500591a7864a2322
SHA256ea178f68e868a8c943ec61148f0ebdcbae9750bdc86078eda5ba7760c67fb826
SHA51200d4fe7dba1826d8c43087adce240b3de0bf5e470e563b3481d165d812beffe3ec2f0cc71d32bad7532fab7e26ec832124bf7e4707bc0e91a10f29ef6d0243f6
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD58342817f836547e1ea87f0e19024697e
SHA10a38c1b13fcc3af9ca247482ccdaa7089bd4b1d1
SHA256a9cfd8a83e93820a5d03aed8e0d5b0b59f30b7d080fac9c157999be8aa7d6b22
SHA512c4011b60d00497b57f0455bf1c44c31274121f339c156382d602c5c119e39a9d123a50c15afc272824d14a3e1ba3f34d7586877232e4feda2810dc7432e4d013