Analysis
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max time kernel
120s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
26-12-2024 13:09
Behavioral task
behavioral1
Sample
a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe
Resource
win10v2004-20241007-en
General
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Target
a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe
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Size
29KB
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MD5
46bd6eb85768617f425f34aaa3f67660
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SHA1
b965582e6ba55e7bd578874e5724c415c69d5328
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SHA256
a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6
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SHA512
ff610255738c29c91bafb2a6798e18dfc0aa2a111cd34742ec6dce4f1391f40585d8d5410281911f33c800c8bec320fa884db3803db11d17b90a0db2a7b380b1
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/4ht:AEwVs+0jNDY1qi/qQ/
Malware Config
Signatures
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Detects MyDoom family 3 IoCs
resource yara_rule behavioral2/memory/4076-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4076-51-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4076-56-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2036 services.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\JavaVM = "C:\\Windows\\java.exe" a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/4076-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x0007000000023c8d-4.dat upx behavioral2/memory/2036-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4076-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2036-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2036-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2036-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2036-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2036-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2036-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2036-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2036-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2036-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2036-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4076-51-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2036-52-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4076-56-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2036-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0004000000000705-70.dat upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe File opened for modification C:\Windows\java.exe a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe File created C:\Windows\java.exe a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 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 a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4076 wrote to memory of 2036 4076 a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe 83 PID 4076 wrote to memory of 2036 4076 a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe 83 PID 4076 wrote to memory of 2036 4076 a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe"C:\Users\Admin\AppData\Local\Temp\a338c6c0aff275516ef85a166cdef2b1616786ad056e3423c7ac7895aaec99c6N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4076 -
C:\Windows\services.exe"C:\Windows\services.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:2036
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
25B
MD58ba61a16b71609a08bfa35bc213fce49
SHA18374dddcc6b2ede14b0ea00a5870a11b57ced33f
SHA2566aa63394c1f5e705b1e89c55ff19eed71957e735c3831a845ff62f74824e13f1
SHA5125855f5b2a78877f7a27ff92eaaa900d81d02486e6e2ea81d80b6f6cf1fe254350444980017e00cdeecdd3c67b86e7acc90cd2d77f06210bdd1d7b1a71d262df1
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Filesize
29KB
MD5bbefe2e6dd097cd4c568c59a7d9e7627
SHA142f1747abb8c939fbcc61e91e7b143b242bd661a
SHA256b158d8501c85f852c1be0cc76db2664acb43660928a14fea9d1629649900f217
SHA51231e93a9fa1858ab19061442c701392098e01041df31fd712ed3366e95b7b67b037e0ab1582e89f839a2a8576980ba7f0f346a99baa9dff4a93b7183a44ce9f00
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Filesize
320B
MD5e0addcb55858fecd3cdb0bb79d35cff1
SHA1d24bfe61fdcd012c5cab68b30cc1d60228b88cd6
SHA256ef59857f0064d6035d08439627be21d31d08944010a40260a0c00c44f9b69133
SHA51212c1784d48ec07b65fc47e6bdc3bb909efdf6e7129d3e8389f1b6a4854ce66cff94ffbc3669a45ae5c0d97010375921165938f60ddf657ceed49c41ffa405cdc
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2