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Analysis
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max time kernel
92s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2024, 23:26
Behavioral task
behavioral1
Sample
c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe
Resource
win7-20240729-en
General
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Target
c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe
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Size
135KB
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MD5
c4d388d5c665a255bfca5e23cfd64c64
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SHA1
ecea4051eb5b16bd2c9fd38bf63683b670036050
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SHA256
accf7142aadfa962d7d9b6429c187f947d4dfb18b1efce16ffc7bfd3a783243b
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SHA512
6bb24aafc815062039d7f4a80b2cd5237f07b511d35cb0bc0e5fcbb2e00233c1936fead32cf879b2a9f57d42795dbfb8d1cfaf9a20a00943af1d26427a9b0372
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SSDEEP
1536:P/oEkqfCZ10zcT9Yh8AIXcjyz9cOXfiXGImcatMrsWjcdf6odgR5APW:P/5kqCxiXEcO3XfGf2tMUf6odgR5AO
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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 4384 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 c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.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
description pid Process procid_target PID 2528 wrote to memory of 4384 2528 c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe 83 PID 2528 wrote to memory of 4384 2528 c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe 83 PID 2528 wrote to memory of 4384 2528 c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe 83 PID 2528 wrote to memory of 3136 2528 c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe 84 PID 2528 wrote to memory of 3136 2528 c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe 84 PID 2528 wrote to memory of 3136 2528 c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\c4d388d5c665a255bfca5e23cfd64c64_JaffaCakes118.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528 -
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:4384
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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:3136
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
136KB
MD5125d54a2b63df31ab0d212f996492aad
SHA1fd0cdf7bbe523021c42ff002c11e28926c0e58ba
SHA256090b4c6b4f3463f0ef05b8286d182d42842c1337619bf9f655a4a4baa43bff0f
SHA512c3be58cd5fd7648b168c6dd2a6050d79b21564dc091664c2e794c52e99e697cb188214d7f87c94f7a778b84b99c63daa0d622099adc306c0c84e00e19521428b
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Filesize
512B
MD50ecda9ecaa423d5a8481985b7d3d5a77
SHA1ecc237c20c234cf9c0e20b39a39ab27244dc7971
SHA256caed69520592602de846673610507a47e22e0fb108e8e88ba1a85b314607f0a9
SHA51282ce4bfc411781d187b6151383064f18e22b37f5f03d783476fed1c8ba74ee38dc74b16badf96961e22d6b63ae31425ae785c17fa3bd5d767ae3b0bd9652fe3a
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Filesize
302B
MD53ff7297904c42d484f2cb8967ae6e394
SHA1f65da51dc90d6dcfbf371de33d2e776e99a36536
SHA25600fbd9e6d871519842087de759d2a511c8e406cc09759e36339872f764b4cadb
SHA512a1ad7785ad5c305369c61ae5402ddd1520fc826631bfa2e0f08d421d98df373e2f51ab5a320ad2abec75efe67a9f5ce38a91ef394badb513cc02899514db6249