Analysis
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max time kernel
111s -
max time network
135s -
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 10:16
Static task
static1
Behavioral task
behavioral1
Sample
33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe
Resource
win7-20240903-en
General
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Target
33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe
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Size
60KB
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MD5
1c10c8d7135d7e25c5cfadbe78fb1481
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SHA1
4527a1b89f3283d10079807aec4d51c937aa638f
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SHA256
33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c
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SHA512
95ae6fe3bad2352216db55144b658017d784fa331acb36a81abe8603f7c1023237dbc017f0dcd406d126a9329fdc9cff0824af7233a25caa3d40ea8d4de7fa6d
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxP0:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdaI
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:
33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 2384 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:
33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.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:
33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exedescription pid Process procid_target PID 3268 wrote to memory of 2384 3268 33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe 82 PID 3268 wrote to memory of 2384 3268 33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe 82 PID 3268 wrote to memory of 2384 3268 33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe 82 PID 3268 wrote to memory of 1828 3268 33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe 83 PID 3268 wrote to memory of 1828 3268 33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe 83 PID 3268 wrote to memory of 1828 3268 33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe"C:\Users\Admin\AppData\Local\Temp\33e20f7d792c65ca0dc04f207d350fa255ef3f66d06bcafb6148469f491d133c.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3268 -
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:2384
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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:1828
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD510dc76db5a694046eb6b9bfa56814634
SHA10eab138d294078c3aa240260e6c047631a058708
SHA256c131bb56edfaddb15be55ee3ce5c7e4e38f99dc0dcb9462562703e8dd53f6d66
SHA5122442f28cdb8f59c3ad85d905a0417a17242aa6e8a440098cf7f0600655279c3df1ab7a5473b0edf8f6e6283eb3a5193104b943802f9ade1fefa3bade1eeba0ba
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD5c2e03550356357f905c1408e4d1b35de
SHA1965e6d104dff5b99ec1dd1064e6c97e56b06dfe7
SHA256bddb1a06f3c1c69ae02b19c8d367cc6b4d1852238700381d2a2ac7f15707f721
SHA51285e92dd118d5e849b2027d8922ddd4fb81cb4a1fbad944ebed518c83c0f45e43a344b1e1568fd42fe5f6eaf2fb2bead5bf67c1474fe3df19405106fd2d4d0216