Analysis
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max time kernel
89s -
max time network
89s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
22-11-2024 19:46
Behavioral task
behavioral1
Sample
a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe
Resource
win7-20240903-en
General
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Target
a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe
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Size
140KB
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MD5
911fcedac2288feb9b40d3d554a35c48
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SHA1
20049de78dbb85134a24ebcf63b4cbd340712339
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SHA256
a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5
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SHA512
065d6f220bce7aa4e91e74cea0baf85bf50da71bdc4f6c0f08725aefacdbeb20e465c15ea13431c7a2b3b4ca36a98c7137e906ad3fd3e8d94b04dd822cf1c8a7
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SSDEEP
1536:P/oEkqfCZ10zcT9Yh8AIXcjyz9cOXfiXGImcatMrsWjcdf6odgR5APfI9:P/5kqCxiXEcO3XfGf2tMUf6odgR5A49
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 1864 cmd.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 2308 biudfw.exe -
Loads dropped DLL 1 IoCs
Processes:
a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exepid Process 1292 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.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:
cmd.exea8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exebiudfw.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exedescription pid Process procid_target PID 1292 wrote to memory of 2308 1292 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe 30 PID 1292 wrote to memory of 2308 1292 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe 30 PID 1292 wrote to memory of 2308 1292 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe 30 PID 1292 wrote to memory of 2308 1292 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe 30 PID 1292 wrote to memory of 1864 1292 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe 31 PID 1292 wrote to memory of 1864 1292 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe 31 PID 1292 wrote to memory of 1864 1292 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe 31 PID 1292 wrote to memory of 1864 1292 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe"C:\Users\Admin\AppData\Local\Temp\a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1292 -
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:2308
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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:1864
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
512B
MD50ecda9ecaa423d5a8481985b7d3d5a77
SHA1ecc237c20c234cf9c0e20b39a39ab27244dc7971
SHA256caed69520592602de846673610507a47e22e0fb108e8e88ba1a85b314607f0a9
SHA51282ce4bfc411781d187b6151383064f18e22b37f5f03d783476fed1c8ba74ee38dc74b16badf96961e22d6b63ae31425ae785c17fa3bd5d767ae3b0bd9652fe3a
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Filesize
338B
MD55212edd3e13aac9b517160e4e6102f66
SHA1d24e4d01f5b4a09c03d04ec7b23fcf9c26d76a26
SHA256656ce2b575836ce46130998617a47fec152faa0af0852ab48244a4e0232de6cf
SHA5120d38e670ae688419e96006886280df975e5472bcb56d97584a629ff15f93f064508a2456fac9dbe056811acde8c8dff9ef15e655bb2493b66be04fc647e0e8a4
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Filesize
140KB
MD555573ca2a915e982499e0dbbb60ac58d
SHA1ea3ad805c62ae20d8317429b14213927355cc60b
SHA256839aa8bea22a8ce4959f267a2c58501dedd6b7cca2b3193b262932484a2a6375
SHA5123dc7ffdaaba649a4b1c80224b45547e91797a6e005d5c40be28c43ff829bc77c76da7eb49d86c7b64fd393f5d499fed8093857d0090c2df2a62b5c40b686dbde