Analysis
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max time kernel
93s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-11-2024 00:51
Static task
static1
Behavioral task
behavioral1
Sample
615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe
Resource
win7-20240729-en
General
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Target
615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe
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Size
71KB
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MD5
57be52759311868699102199c2b94800
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SHA1
b71e730b4f07da4cf41a3f44cb9617e69b114cca
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SHA256
615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009c
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SHA512
3a2560e47c0e37ddc3fde64f9873411dc956d0a49544603ef316b3cff5eb47702f819e405baf3011aa404fb808e8e5434a266aa44738bf05a6c9fb6010c0b44e
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SSDEEP
1536:v6fqsAPQYGmPzmZDDZrV8sMQXGkfn33n7z5WeIuhCaraw:yLAYUzmdD0sMQl7d7IuhCae
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.
Processes:
615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation 615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid process 3228 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.
Processes:
615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exebiudfw.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.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
Processes:
615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exedescription pid process target process PID 228 wrote to memory of 3228 228 615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe biudfw.exe PID 228 wrote to memory of 3228 228 615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe biudfw.exe PID 228 wrote to memory of 3228 228 615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe biudfw.exe PID 228 wrote to memory of 4992 228 615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe cmd.exe PID 228 wrote to memory of 4992 228 615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe cmd.exe PID 228 wrote to memory of 4992 228 615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe"C:\Users\Admin\AppData\Local\Temp\615441dbd919e62416c21413f070c62d99581e09d5f82bf233c616df2642009cN.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:228 -
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:3228
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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:4992
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
71KB
MD58abc88c098699ff0eeafb6add1890497
SHA1bd7da3d9c9b0e75bf6166ae4a674c983b1a1185a
SHA25698df7265e328ae4e8f9bb5a5c2d1af1db0a46bb23ae956b7ff9c6b83c045cccc
SHA512d7e28a96291a22c2312cbcf81378ce1c13a8c19cbebe74c9c03228fd7c69469194713b79f6166788d8c0f21d105c54f4c3dc11505a45106336fe0599e138ba90
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Filesize
512B
MD51c9b2720af0ca9528b47898d9c7f4799
SHA180495f16e333f54ecc700252323c2a7cb7d751e1
SHA256d1ea9a17b5a635a121e82e7963d3b134f74050da9debcd40c9622f50c5d38fe5
SHA5125afe876f2cd887458656b1747bce08d03f26ef286bcc83efa93e0111be856d0564bee4d6ef5637c167626bac121f7371b69c7952502d47784ac9ad568bf53eac
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Filesize
340B
MD5900df2e0a7c87b276cf0e9c0cd704098
SHA13e364485f15437163c58817fe5d1aed5c1cd850e
SHA2561747340c046dc3adec6c17f3e8f66e7a74e85619149e3e989e840d7964bb82a1
SHA512c9cf4cca18715242a21d975c79b5d97f756cf27dfcc3ecf73e311f673ccd9d649cedf90c7b53f2f58bc156b4a70cd610b8cba01c35d5a9fdc348d2c3a8466cc2