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
24-11-2024 00:42
Static task
static1
Behavioral task
behavioral1
Sample
f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe
Resource
win7-20240729-en
General
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Target
f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe
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Size
60KB
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MD5
56c634314b0075f8a279f1e5d1288548
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SHA1
e5c70985f7e3d3dd0a6b5fe2cae786c6b88b2b09
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SHA256
f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4
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SHA512
45e72e435cfd3db2e85a14868dee11a58f21fe4c8707227376fed06a3c5c3bf59da6430e96290970eb03ff5a7299a95646301eef389c4140e20648202df12180
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxP7:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdr6
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:
f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 2976 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:
f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.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:
f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exedescription pid Process procid_target PID 4944 wrote to memory of 2976 4944 f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe 85 PID 4944 wrote to memory of 2976 4944 f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe 85 PID 4944 wrote to memory of 2976 4944 f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe 85 PID 4944 wrote to memory of 2248 4944 f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe 87 PID 4944 wrote to memory of 2248 4944 f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe 87 PID 4944 wrote to memory of 2248 4944 f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.exe"C:\Users\Admin\AppData\Local\Temp\f10929b3881e1d766d1b834debecd51cb74b3e362f7dac0ce4368f137ed7e0c4.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:2976
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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:2248
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD56d8dc526e12e16481ddf1f37681797dd
SHA1bc38daa35de00eb4f1d9cd5a6789d7a3b856ddf7
SHA256f36482377f99a18d8fb77541964f5c62bbfee5374b9cbad934f8fa018147a37c
SHA5120b70f6caadad159bba72328cc402c9c4e801346f220684d4b79ee29da7a94d402e326c94a1d94269dea461d6eab1a8a5ce7e887d52571c648549040488ac0704
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD5de8e864b5a453df97f8d50199967ef65
SHA19de8770c063980f718d7cd5205e448cc8ce1053e
SHA256dad0f92b08f1cb8738a0f9ebaae83ac94c62aae17323bf27c40bf59108f5ed9f
SHA512e73dafc80314990fc4008d736b1d7a657fc007f5efb49d83df94e939219f697f686cb6d4f40d14c41e03b2cf616a77682ec54cc9835556e3821c002c2ab8aa2f