Analysis
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max time kernel
95s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
08-11-2024 21:45
Behavioral task
behavioral1
Sample
3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe
Resource
win7-20241010-en
General
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Target
3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe
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Size
169KB
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MD5
a48ec8742c239425eb97f1976946de02
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SHA1
e8b55b254d54e5a602b389f3cd13cacd20dc3f52
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SHA256
3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc
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SHA512
2737187742a75f8382cfc09055474faba9d3652f306791d8fd04d6920b8a745f62a5c29759c711a68eb91ea301057ec5d74767b1780ec521a53b8eef7585a9f7
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SSDEEP
3072:yp56zRJ83+OJ7NoGvdwWy6k04yW/KR0Yx4BXP1:yOzRWu27dlOd5/YWV9
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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe -
Executes dropped EXE 1 IoCs
pid Process 3652 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4544 wrote to memory of 3652 4544 3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe 87 PID 4544 wrote to memory of 3652 4544 3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe 87 PID 4544 wrote to memory of 3652 4544 3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe 87 PID 4544 wrote to memory of 1816 4544 3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe 88 PID 4544 wrote to memory of 1816 4544 3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe 88 PID 4544 wrote to memory of 1816 4544 3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe"C:\Users\Admin\AppData\Local\Temp\3b23e01ccddcce6ea19bbfd03a139ff40971d0fbae1838a810fc974067618bfc.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4544 -
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:3652
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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:1816
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
169KB
MD563139c0611f863ebcc179f784d753cb2
SHA17a32b77d7bd9940b0d2a0efc2bd7ad5d9a50d5b2
SHA256b6bd7d8099afc6f79dd71f346c0a37b03a58dbf479c2aee94a4c12829e95b492
SHA512cb98df28ee0c12f95b98bdd67b2364b82454ca982272be4586213a1be6caee914ff53d33db10032ef352751c6bef32979957bc6edda25f994e42628a8bd40cc0
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Filesize
512B
MD5ac5e84ed8031d66a9fcd5e472ba8091b
SHA106303add604104d6abbb69458f89773c066b470c
SHA2563a3cfa6f4786dab0ac8bc76204948f32a3a2cbd094922f87c251ec80d22baae5
SHA5127bf829102a70a1304dae435b8ae3c9ef9a925af7e995fe381d80730f4f702e1fd2a0a1b6a3a4b4667925f5bb95c897166a8fc0f52d3171d9cdba0bf09b53f152
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Filesize
338B
MD54a07adf202e5d7e360ca60d39a584aed
SHA12c9e9076627cae02074cff57495cb2ee1243a581
SHA2564888cc3f32ccbc16dfb9825a0460a26abfb20e39ec7eb92a86934558d70ed38f
SHA512f46234b7cfbde062104d7eb42524191a901b9c98274753e5bf61fa9737590402d0b23a6d325fd4d88a70b8983b379b17e6c1c7f16039a3a404835901138385e7