Analysis
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max time kernel
91s -
max time network
93s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12-10-2024 22:30
Static task
static1
Behavioral task
behavioral1
Sample
62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe
Resource
win7-20240729-en
General
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Target
62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe
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Size
64KB
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MD5
a542d6af5845b8b79b89f039a3763765
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SHA1
b636d147f407db50f13d1b51da5e49583820d83f
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SHA256
62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e
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SHA512
1d7238e4cc2203979589c5ce17e653e5f6edefaaf235ed24552797b966fd1fc7eabae9cdeb95d85deaee7dbaad4bcd29b4b57f483bad689e7d1703493bbd207a
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SSDEEP
1536:6bQx5oPsr2vFxDPhAvzgAQzFZ77MzeTm/F:6bQRSHpAvzyf7MzeTYF
Malware Config
Extracted
urelas
218.54.47.76
218.54.47.77
218.54.47.74
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation 62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid process 1520 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:
62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exebiudfw.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.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:
62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exedescription pid process target process PID 4944 wrote to memory of 1520 4944 62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe biudfw.exe PID 4944 wrote to memory of 1520 4944 62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe biudfw.exe PID 4944 wrote to memory of 1520 4944 62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe biudfw.exe PID 4944 wrote to memory of 704 4944 62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe cmd.exe PID 4944 wrote to memory of 704 4944 62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe cmd.exe PID 4944 wrote to memory of 704 4944 62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe"C:\Users\Admin\AppData\Local\Temp\62744ce3b4475009d05b094c05bbd130ee7f151bc449ba1af6fbb56dfbaf413e.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944 -
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:1520
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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:704
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD51c7a79d546d58371e470f39bbeb6ee2a
SHA1cb7a7fadf89eb4500680a26aa95ce05d0434cb32
SHA256d1061aaea95973c0be8c3c535a0a1328280cf94a1da51ae3ea8efda4bd29b6f5
SHA512e7975880d969b32b23ed5d02de76467a5d39e8e476c6842c81f850b868e1e32d92189f12ebdfbf45531a04bdcf4046a1bd8eba463e4a4dc87a8913e22ed4b3a5
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Filesize
512B
MD5efd90b3ac908d5482af367de3a82184a
SHA1de9f01d2ed0247b7b347e55c5a09721a60147fb9
SHA25644f3db1bb73bb207a88008ae28d0399f888b5714ccccb2056f4148b4455e693d
SHA5126e3355f895af1d81887d5750033c5a139e4a0e1c2c928aeef1fd37f9c191e754b1f524d252c229ea5e744dbef4dd0a8240d9d3443651d42de198e82a197afb02
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Filesize
338B
MD5b7369bcb1bcb9e75f0fb5a3c07a3cafe
SHA11e362cb74f1dc8e01e5824f6c251edc854323cde
SHA25600e4c8725c8ca4cd9aa4d05085854898ae25ff43a56cd757b21c620c2a0a76af
SHA512a065bb3d32b3a16704d549dad89e354cd8bfe5e40782c82817148e6a79788e897a37672bb0ff4a579f625f7bfa333ba7e2241f9cdbee1629be23b6bbf3eb34cd