Analysis
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max time kernel
95s -
max time network
96s -
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 11:35
Static task
static1
Behavioral task
behavioral1
Sample
ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe
Resource
win7-20241010-en
General
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Target
ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe
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Size
59KB
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MD5
042ddfa806393fb1f0c2d571cca2dc52
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SHA1
70fed45f8f7eb43a3ebac8a59cafa885e3b278a8
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SHA256
ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa
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SHA512
905f407bc7c2be00e1846bfdf40f3cdf4041c025412822ceda5d6fae89a68b3098f6371669eb67ec3065e3dd6263334771f099867bdbca755d0d0f1cac1f0e6d
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPB:nK0GjMeQG3iaQREuVZ6ro29p4YxbKda
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:
ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid process 2960 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:
cmd.exeff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exebiudfw.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exedescription pid process target process PID 452 wrote to memory of 2960 452 ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe biudfw.exe PID 452 wrote to memory of 2960 452 ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe biudfw.exe PID 452 wrote to memory of 2960 452 ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe biudfw.exe PID 452 wrote to memory of 5028 452 ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe cmd.exe PID 452 wrote to memory of 5028 452 ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe cmd.exe PID 452 wrote to memory of 5028 452 ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe"C:\Users\Admin\AppData\Local\Temp\ff0291ea10db0ac06be4c77ef001d8e131462f4511d57a24dd01c0c5804256aa.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:452 -
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:2960
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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:5028
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
59KB
MD598b974a0bb3218899bd7d82d29ff006b
SHA1fb7ae03ce022a2abce2b373b7b00436c03e8b6e3
SHA2568d17abde85bf5bac4e2b18519d21670ae4867688d4319dd15f7cbf39dbc6bb91
SHA5123d545876c959694b5772842525668fa3c79576c2d6c9c0f9d91af803f765e4d1e8907f40a9270171573bb5f6787c87e42bb7117c13d9e859c5d8f0fe20d721cd
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD5c7dfa9886d8c7aa1ea6a255b1f6ed68c
SHA10f485738849604a38131495200ed4ee28ca1ff7a
SHA256e7536f31dc7f72a008e025f93f5fd1a910ac789d467674f702567bb83de9433f
SHA5126a3be1f38da566b0655dfc887f0d6d89ed289bf6d8d7a94eac86d7ef0aeedeec9cd35ac1396c420877587cf336b843d1a558c21cad0aaa7ccc3ea8ce004c4609