Analysis
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max time kernel
90s -
max time network
94s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
30-10-2024 13:59
Static task
static1
Behavioral task
behavioral1
Sample
5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe
Resource
win7-20241010-en
General
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Target
5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe
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Size
57KB
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MD5
93168f2d91504f9a637add80fbdfca20
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SHA1
517a9ad20e16525fc51597787058ad7f585b5954
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SHA256
5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000
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SHA512
b79279717bb4085ed1fcd6b382521db662c982271ae8996983a692eefec93023012ee52e9ecfb623ad7274b7008983e80263246442792d87dedbc6a478fa8b48
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SSDEEP
1536:amZ+4hcuX5uZ79jmvFQTXnz9yQ/PFBhl1ls:amZ+luXwy2f9LDhDls
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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Deletes itself 1 IoCs
Processes:
cmd.exepid Process 3012 cmd.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 1640 biudfw.exe -
Loads dropped DLL 1 IoCs
Processes:
5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exepid Process 1968 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.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:
5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.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 8 IoCs
Processes:
5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exedescription pid Process procid_target PID 1968 wrote to memory of 1640 1968 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe 30 PID 1968 wrote to memory of 1640 1968 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe 30 PID 1968 wrote to memory of 1640 1968 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe 30 PID 1968 wrote to memory of 1640 1968 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe 30 PID 1968 wrote to memory of 3012 1968 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe 31 PID 1968 wrote to memory of 3012 1968 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe 31 PID 1968 wrote to memory of 3012 1968 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe 31 PID 1968 wrote to memory of 3012 1968 5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe"C:\Users\Admin\AppData\Local\Temp\5a9ca35bd38153ec5f69c4970b904aef4ea555aac3abbd821a61f55be8323000N.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968 -
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:1640
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:3012
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
512B
MD526625b4ca7658f7ba4dc7d982782323c
SHA1574aa314998c39e683675ccf457b0305341a4aaf
SHA256c494e0ffeee72023dac244366c08072f677ba328ba805f9e480abc2824e99283
SHA5125a9af4c6be10240dec0d33b37bc6f6836f1db5d0a2a9dd158d63848a8a97dad68e2d9217aca2b2d1cf122d9534aba0d23b247f6686c4ff934bd7035a927d9b9d
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Filesize
340B
MD58baef0e70ac285fca0bffd1d8168fd41
SHA1c2c71ef760a595d187afa95d53ecff70339b51c5
SHA256c8f286d3a7aef2594f3e759ce02704aa08c1f55a01429758bbac8f1c8896f56e
SHA512eeedd33e882b306d6f5cd434901dd6f137df9567c43a922562d5d1306ba8720986fc343f67487a7b0c563147dc6cdfa106989018a5705080f01edd5d808dac78
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Filesize
57KB
MD531ad7788f5d5996cab99b91b9c8318ce
SHA128c0d1ade2b25ad913907288c315d5461f643477
SHA2561a6a3473b6700c604af5bb1952fbd929ad3c7baa1bbbc12a0f1b7559aafb3948
SHA51205bcde1f0777d41b5834e65a6dac7efbfdce697f5925bd94e20abc0616d7391cfd768914e3f26847e09c23efef165534e1a3e53228c9a600947d6ff02347d49b