Analysis
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max time kernel
95s -
max time network
98s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-11-2024 00:35
Static task
static1
Behavioral task
behavioral1
Sample
217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe
Resource
win7-20241010-en
General
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Target
217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe
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Size
57KB
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MD5
ae534e14014e883fde7a31a89a0b2bd0
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SHA1
a459ed9692f28468c7d4d89c5868eea63e1e69b6
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SHA256
217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25
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SHA512
8515b2328323eaaf7d3490320960afc7f33c2128afb639c6e47f7c0ffd1e0c464a904efe6c3c9f33add2dad6841e90fa10bbee2b00a6bbc34f6c3cbc02ded923
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SSDEEP
1536:amZ+4hcuX5uZ79jmvFQTXnz9yQ/PFBhl1J:amZ+luXwy2f9LDhDJ
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:
217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation 217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid process 812 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:
217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exebiudfw.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.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:
217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exedescription pid process target process PID 3388 wrote to memory of 812 3388 217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe biudfw.exe PID 3388 wrote to memory of 812 3388 217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe biudfw.exe PID 3388 wrote to memory of 812 3388 217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe biudfw.exe PID 3388 wrote to memory of 5012 3388 217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe cmd.exe PID 3388 wrote to memory of 5012 3388 217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe cmd.exe PID 3388 wrote to memory of 5012 3388 217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe"C:\Users\Admin\AppData\Local\Temp\217e4ed3df94fad61c0ee33a0ec9c9e58947dcbd287e508b3c193a637eab8b25N.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3388 -
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:812
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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:5012
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
57KB
MD54770e25d6494aa372ebfa2c0d876ea79
SHA1f51495157d5557dfdb395a82c999380f6a96621d
SHA25675189a85c22f1e17d0010fffe45e6b350a3872c9fa5206cbf5781c27aca2ebd5
SHA512475db9e477af14145a353a4f3a80c9acd4df5242493f44ce5b088457e52a220957e00346733a92ac87b793a9e6bdfec93bce98ff97be0b185a926b1254a7cd2c
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Filesize
512B
MD526625b4ca7658f7ba4dc7d982782323c
SHA1574aa314998c39e683675ccf457b0305341a4aaf
SHA256c494e0ffeee72023dac244366c08072f677ba328ba805f9e480abc2824e99283
SHA5125a9af4c6be10240dec0d33b37bc6f6836f1db5d0a2a9dd158d63848a8a97dad68e2d9217aca2b2d1cf122d9534aba0d23b247f6686c4ff934bd7035a927d9b9d
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Filesize
340B
MD5e32c560b484e2803c61001af83686c6e
SHA1f1a3907ed6ded5b58bf5b96c00eaa63f2aeb85df
SHA2566b64d4f6db3ee4bcebb4bbc7fbf2ed7f06d561521d8bdc1aaf1ab9b86b3c3ab8
SHA5124b8ec01db81b4ee04be814fd9b88d53d1fccb3782a8d6c96ac33e235830a22f56ff6bbf36ed0a56356920da5078e8dd01ca2b58f57c3ec8c3708ff20a4800817