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
02-01-2025 07:22
Behavioral task
behavioral1
Sample
ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe
Resource
win10v2004-20241007-en
General
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Target
ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe
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Size
29KB
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MD5
d065dd70a26782096977cc586a1dc3bb
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SHA1
ba370bd50508d779fc8af3cfeea9b487cbfa47e9
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SHA256
ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529
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SHA512
4b293726a1bab0d29b5d36f8d7bdc54f3b019788b9596d08327cdc3b964cfc2a4439225077c2621c6d53442ec419dd11bbbb9408161827c5712d8bf6243ae5c1
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/uhb:AEwVs+0jNDY1qi/qG5
Malware Config
Signatures
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Detects MyDoom family 3 IoCs
resource yara_rule behavioral2/memory/3400-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3400-51-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3400-56-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 5020 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" ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/3400-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x0007000000023c99-4.dat upx behavioral2/memory/5020-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3400-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/5020-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5020-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5020-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5020-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5020-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5020-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5020-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5020-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5020-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5020-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3400-51-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/5020-52-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3400-56-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/5020-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0004000000000705-67.dat upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe File opened for modification C:\Windows\java.exe ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe File created C:\Windows\java.exe ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.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 ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3400 wrote to memory of 5020 3400 ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe 82 PID 3400 wrote to memory of 5020 3400 ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe 82 PID 3400 wrote to memory of 5020 3400 ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe"C:\Users\Admin\AppData\Local\Temp\ef59b699dfb26b583db45131a1bacc2850ae735a305355743ce244fa1ff2e529.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3400 -
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:5020
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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
MD519cfbe40fe97449b8a56743e62201096
SHA14cb360f3e19fda83a6a16b7436f9d2d99338a0c0
SHA256d70aca123a5cfff5f2fe101533f1030b07d44a5c730fbfab540d183beacecb34
SHA512ad05d0c649af03bc30f2cd491587a8940d172afc68bf8ab525baf3a0fb5180cc7d49761a0c4475452c0bb6732918fc4ff8c2cd344c740ced7d69e7d338207ead
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Filesize
320B
MD57aa65a4c64c2bb957ffafba0300f2f9b
SHA191f26b1690810b00877c3ae32d32ecf44987bad2
SHA25679bc912d320f080ff2361a688194c6ca0e34ff73e2e9762c9b418ac23f159f81
SHA5123ca0262da073e9c378e9f8d6f158ccff04af81a66973926b9538e50a44089788719c4c1c74ff893227099e8fd05e590cb23ac29dc10a3e9c7e46524bc802e41a
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2