Analysis
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max time kernel
120s -
max time network
122s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
01-01-2025 15:57
Behavioral task
behavioral1
Sample
a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe
Resource
win10v2004-20241007-en
General
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Target
a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe
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Size
29KB
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MD5
d7bc7504e5a9e5038d8c3166a81ba5c0
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SHA1
1261005a91470831c491c779ffb5419c436eb56e
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SHA256
a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1
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SHA512
00f714ebfbd24b38bf2d5504065f5b55557892731f369164c3cfc14d3c18f48afedd62108734c231770bb97e77ec03932af7710ee9a97cad0be29de77c3abfb0
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/7h3:AEwVs+0jNDY1qi/qTV
Malware Config
Signatures
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Detects MyDoom family 4 IoCs
resource yara_rule behavioral2/memory/1936-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/1936-49-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/1936-51-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/1936-138-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 4292 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" a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/1936-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4292-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0008000000023ca1-4.dat upx behavioral2/memory/1936-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4292-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4292-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4292-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4292-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4292-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4292-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4292-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4292-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4292-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4292-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1936-49-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1936-51-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4292-52-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0003000000000707-57.dat upx behavioral2/memory/1936-138-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4292-143-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe File opened for modification C:\Windows\java.exe a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe File created C:\Windows\java.exe a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.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 a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1936 wrote to memory of 4292 1936 a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe 83 PID 1936 wrote to memory of 4292 1936 a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe 83 PID 1936 wrote to memory of 4292 1936 a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe"C:\Users\Admin\AppData\Local\Temp\a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1936 -
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:4292
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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
MD54ae7c9493f398cf4268b71762a967190
SHA1ee873fbe24e1b2d6780a4ceb23a48b5c8c3d2426
SHA256ac5c0359a82b088ff521513ed44473f74cff8fb3512ec3b915d1e89f9198e616
SHA512db04d037b4d48ba89081a987a696c1503c8d0f635102a83ee38f62033d683d4426ecd7f8f52b050ba4e27546cfa9c5dd67e371a23080f21b77f7aec16b50539d
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Filesize
320B
MD554d1b9305eab0dc16f0348f3c192e651
SHA17918bcdf63c0df6a9a96eb81d3e40e9a9caa59c1
SHA256341ab5821d400a6a7582ab163c3217f31cfe6f7005594b1bf6f613c9b2a696c5
SHA512af18f974abda067e69a19f276002c43f575e5e35a9c30aac55ebc4246b46c182313ba155c061c6802e6bb300f59461ea5b1917bdf522657d124d9d46ac9e13d5
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Filesize
320B
MD56008fa7639afede1ac769edcbe38db10
SHA15e9ed6a86ad5e56c32eb4f7e3ddf5c9126d3a0a3
SHA2568b546eb34dda8352462793e24b4242fcd00f6e435ac35553599e46c3304378b6
SHA5127852575ad8e4ee50f3f3457bdba4144927ec7e4d553b39e63c465d5be6ca5328f7cdc35dfa63a7028725abcf8be653cdd05dd5582247e9185d0c93cd09ecd91a
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2