Analysis
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max time kernel
90s -
max time network
92s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
21-11-2024 10:05
Behavioral task
behavioral1
Sample
4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe
Resource
win7-20241010-en
General
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Target
4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe
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Size
109KB
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MD5
0d98dfa5f54bc8fb3c6587860609bf98
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SHA1
0d2f67f748e69ee62bee2f77ffc40ed984788305
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SHA256
4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87
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SHA512
42460ee0c20a6a9e0f8ebf716318fd91f077e75016d9475680a736b23ee7bad2010f86f941e476160003fd482d0efd8356adfc5734aa92232727fb7084b3828b
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SSDEEP
1536:3JoHHwAnTtIBcNCk+syhonfC3GNKcK7+sWjcd8sWL64TGFjI9g:4tCc+/h0fmSid81L64TGVI9g
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
pid Process 2128 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 2424 biudfw.exe -
Loads dropped DLL 1 IoCs
pid Process 2116 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.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 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.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
description pid Process procid_target PID 2116 wrote to memory of 2424 2116 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe 30 PID 2116 wrote to memory of 2424 2116 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe 30 PID 2116 wrote to memory of 2424 2116 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe 30 PID 2116 wrote to memory of 2424 2116 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe 30 PID 2116 wrote to memory of 2128 2116 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe 31 PID 2116 wrote to memory of 2128 2116 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe 31 PID 2116 wrote to memory of 2128 2116 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe 31 PID 2116 wrote to memory of 2128 2116 4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe"C:\Users\Admin\AppData\Local\Temp\4c596693a9ef3552bc3a6ab872cec32e4904f6d30e6dfc84713ec0eb21c84f87.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2116 -
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:2424
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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:2128
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
512B
MD5429d29b7501cff75ffd4e7af0b24db41
SHA153808fde744d4d65aa2f4c48e8644a65f81be038
SHA2568076fa1dc4b0ecf16960cc5c92abd9dc5c4542fb7ff92073e8b6a24ba1eea1c7
SHA51283516d410586a6224af7cfc232b65d36a0e74e8c75264c737c20a9956aec011f1bd6343ad5b573219804cc8f76697a98b287d7117669e9375947fcfe49bd4e07
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Filesize
338B
MD557b7110fe53331ea1f6bf56bbfcac5bc
SHA1da240e91fc97aa28f3700354f303d1a3f88ea7b0
SHA256710f16b1727ed7d25b68984d385bd3ab4629aa4f27d8956550088a1827e76861
SHA512831efd6c353dc7ecc134dc67de5196638197c02d6702891fd9501fba1bc74117830db44b48047491bfdf2d09ac229ef7a59ee232714b3e63294b5da008306883
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Filesize
109KB
MD58fe6d556ac5a5dc3a8bdbac85678b209
SHA1308a3de35138e0de56d2e2e15cace9e5b7157766
SHA2564ebb44b3d7d87a2b74a11561e9ce938e1a39777e9f380c45abb4d67072ccfbc0
SHA512fbfda09d5960737f79fc289df35ba83d0dea89cb78978d655b3004ea9ff3de72abee7310ebc6b891dcce05bd334f5736059f3b83a793fc9262abe8a3d2178fe9