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
10-12-2024 10:46
Behavioral task
behavioral1
Sample
ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe
Resource
win10v2004-20241007-en
General
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Target
ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe
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Size
29KB
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MD5
aa7c251819b3161833803391ee30f620
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SHA1
ef7d6c00c2b1c7d422d0dca84e2ac04082aea592
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SHA256
ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89
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SHA512
0e0de5483d1e5904bfbadef6c1ef6a8700bc3313c652dfb2ca84f3b7bc61e8f2bbeabb88f74585607a229eb71e06dc75e505bdac1f2ae938426515dc865fb918
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/0:AEwVs+0jNDY1qi/qM
Malware Config
Signatures
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Detects MyDoom family 4 IoCs
resource yara_rule behavioral2/memory/4872-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4872-51-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4872-56-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4872-145-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 3136 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" ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/4872-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x000b000000023b8e-4.dat upx behavioral2/memory/3136-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4872-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3136-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3136-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3136-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3136-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3136-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3136-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3136-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3136-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3136-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3136-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4872-51-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3136-52-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4872-56-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3136-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0004000000000709-70.dat upx behavioral2/memory/4872-145-0x0000000000500000-0x0000000000510200-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe File opened for modification C:\Windows\java.exe ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe File created C:\Windows\java.exe ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.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 ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4872 wrote to memory of 3136 4872 ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe 82 PID 4872 wrote to memory of 3136 4872 ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe 82 PID 4872 wrote to memory of 3136 4872 ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe"C:\Users\Admin\AppData\Local\Temp\ef96cce78c32e0be48ca55b6ec1bc41ecc9451bb03069d70b0e20b01e9889f89N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4872 -
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:3136
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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
MD58753b2211d436d97c9d9121a690d69f4
SHA125b5f7b0681a9190defb79e7ddc75f58ea3fbd21
SHA25672827cbf3df25e4d4b0c2fd4c29b9e3e354e23904f232f99157bb03827c31bf5
SHA51219e51f849e640d2344a8ebfd3700460509e1f0022b80c6d0ed56c2dcb19cd1a45e4a9c05c00ff81f9e146cb55021da423dd11f3e4689892ad7a6e468a9833206
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Filesize
352B
MD565ed9c26f11c8fe40ce8bc05cd7c205a
SHA1767b0a4cbd16403b9211f2ad73d7e326fede2639
SHA2569eb645572e77aa924e055beeb0004059401db702408aae7287492410a7ea1137
SHA5122c13b5c2f56c0795583036ca95e2ece70bbda0f118b61697f4a7751855eeea9a40d4194adb4cb925d9b23e2490bc213480872c12d350c18fdb4c0030758d7649
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2