Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25-12-2024 18:55
Behavioral task
behavioral1
Sample
b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe
Resource
win10v2004-20241007-en
General
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Target
b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe
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Size
29KB
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MD5
b50ec30a22302a4c2fa1a9ce2c21b045
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SHA1
911ab0f8f2878cf90ff5e55daa7c7bad479ee312
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SHA256
b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec
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SHA512
a1eeebb061d3d2e3ed6f2dd24614ba69e8d51c1eebb265b96bde19cdd0a14934c96e5206e829b4883f496aa52d5bd9e02dc2d9b4bd9f0f8a8de24eb7da12c5cf
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/EhZ:AEwVs+0jNDY1qi/q8D
Malware Config
Signatures
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Detects MyDoom family 7 IoCs
resource yara_rule behavioral2/memory/5004-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5004-44-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5004-119-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5004-158-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5004-167-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5004-181-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5004-214-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 3560 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" b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/5004-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x000d000000023b9f-4.dat upx behavioral2/memory/3560-6-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5004-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3560-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3560-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3560-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3560-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3560-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3560-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3560-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3560-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5004-44-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3560-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0017000000023aee-55.dat upx behavioral2/memory/5004-119-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3560-120-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5004-158-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3560-159-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3560-163-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5004-167-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3560-168-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5004-181-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3560-182-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5004-214-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3560-215-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe File opened for modification C:\Windows\java.exe b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe File created C:\Windows\java.exe b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.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 b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5004 wrote to memory of 3560 5004 b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe 83 PID 5004 wrote to memory of 3560 5004 b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe 83 PID 5004 wrote to memory of 3560 5004 b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe"C:\Users\Admin\AppData\Local\Temp\b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5004 -
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:3560
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
312B
MD55431b34b55fc2e8dfe8e2e977e26e6b5
SHA187cf8feeb854e523871271b6f5634576de3e7c40
SHA2563d7c76daab98368a0dd25cd184db039cdd5d1bc9bd6e9bb91b289119047f5432
SHA5126f309dd924ba012486bcf0e3bafe64899007893ea9863b6f4e5428384ad23d9942c74d17c42a5cf9922a0e0fd8d61c287a2288a945a775586125d53376b9325c
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Filesize
25B
MD58ba61a16b71609a08bfa35bc213fce49
SHA18374dddcc6b2ede14b0ea00a5870a11b57ced33f
SHA2566aa63394c1f5e705b1e89c55ff19eed71957e735c3831a845ff62f74824e13f1
SHA5125855f5b2a78877f7a27ff92eaaa900d81d02486e6e2ea81d80b6f6cf1fe254350444980017e00cdeecdd3c67b86e7acc90cd2d77f06210bdd1d7b1a71d262df1
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Filesize
312B
MD5c15952329e9cd008b41f979b6c76b9a2
SHA153c58cc742b5a0273df8d01ba2779a979c1ff967
SHA2565d065a88f9a1fb565c2d70e87148d469dd9dcbbefea4ccc8c181745eda748ab7
SHA5126aecdd949abcd2cb54e2fe3e1171ee47c247aa3980a0847b9934f506ef9b2d3180831adf6554c68b0621f9f9f3cd88767ef9487bc6e51cecd6a8857099a7b296
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Filesize
29KB
MD59967a1ae6595125d4e4d87c38ed030ae
SHA1779a43973cb74567f72a5419f2706dc5338d646c
SHA25666113184094e1dd2394b460d872675b6e5472d630ed3e059bad1a019ed980c51
SHA512ff466508bbca787d94d236e93c17352a323634cae6c867d065547347c78d7747a723f1e6bbbe124049cd4b7d7a286d0462f263ddab39b6b5afd3ac976eabc464
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Filesize
320B
MD5f9d87577401c6cf6303d7a5274e9be1d
SHA1d028924973b3eee013b97d4661249c024326fefd
SHA25696793e9c1ae32d9225922816f82274202eb7d2a2945c9e8889dafed2bf4bbd69
SHA512b6882f6e60089101a14803fda624a890a27ac1774c739da5ea9c34d5d75095bd8c10d8f7d4c17a5a4389418a62ec82712d6397df73afd2fd1e2d3a422397bfb7
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Filesize
320B
MD54c4581ce27e9b63fc0eab1f13e43502b
SHA1827523e2192efb05163267dda4ee5d4a84d28ae7
SHA256a4ead9235cc8775a259daaeb1d1b67eda3cdd1c840b63293fbd776966ad6f525
SHA512bc636975fe226eb6ff292881dd8792118864801f858fc79454e8346b6efb50c05daa4c7947cad8c518602c69218b8b8b81de4136d7294be36e7df31e960e3462
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Filesize
320B
MD5aae69a426d296057ae833f150a26cec8
SHA11b6b7a637a9ec5c1fd6b54a78a87ca93ec8d0b4e
SHA256fcd37ecbf07e14f200d34599652d7657006be1a39d85010609f9a27d2a7b7f45
SHA51247929a6fc0a9e0c3e4afe0e422267545adcbd8906124502bda62175be32c5bf371c3689727009f11fa9d921a279ac165cfd41044776d61255b3be69182fb5d11
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2