Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
23-11-2024 11:13
Static task
static1
Behavioral task
behavioral1
Sample
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe
Resource
win7-20240903-en
General
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Target
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe
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Size
60KB
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MD5
7d77b4d63a4ccbece37974800633e7e5
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SHA1
53408b5932808d2617e2bd8d1dbf3283ea4bf33f
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SHA256
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f
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SHA512
90e543ba2ac81284680ca74526be7a0b35db31fd50de77cfb457af04ea8533097968369276764508bc5ec02ac8e89981d559a8eca52d89a13fce77e03cb3f439
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SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPa:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdJ
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 1804 cmd.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 2980 biudfw.exe -
Loads dropped DLL 1 IoCs
Processes:
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exepid Process 300 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.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:
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.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
Processes:
4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exedescription pid Process procid_target PID 300 wrote to memory of 2980 300 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 31 PID 300 wrote to memory of 2980 300 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 31 PID 300 wrote to memory of 2980 300 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 31 PID 300 wrote to memory of 2980 300 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 31 PID 300 wrote to memory of 1804 300 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 32 PID 300 wrote to memory of 1804 300 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 32 PID 300 wrote to memory of 1804 300 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 32 PID 300 wrote to memory of 1804 300 4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe"C:\Users\Admin\AppData\Local\Temp\4481a0b60dd2265f4e3cdcbbdd49f3df70a388ae870c2bda44d65c3440a4d90f.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:300 -
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:2980
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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:1804
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
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Filesize
338B
MD5bdfa6b02f03266c08d0d82392f9565c8
SHA1b29b512cd30f1aec50a0fd01635fc7936d0311a6
SHA256a1941bcd4e253b697f04109713de086b516bb07d90156ad5fbce24f4c3f6a4ae
SHA512c5443eab2fc71540432c1423a7212c5336372134217af8b708c6862e93ec64e09837ea1510e30d9096bcf4383be85677320a3aceff0d335c9bce325024e67f18
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Filesize
60KB
MD582361be666155eb5097f3000a52c9f9c
SHA1a3b8450d7af75a7d338235231b188965e2c8f81e
SHA2561de6119be72374c726692f1d7ce52629c655f5cec1522108cd353dded1766aeb
SHA5123eee3f6d37a378564a1828518d411f3d7c869efa2b4fe673dd76eb827d00eee95f9a7aaabf156e614d872435cfcfe710f0e5c20eda41cb5eb5d903b271322c56