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 08:42
Behavioral task
behavioral1
Sample
c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe
Resource
win10v2004-20241007-en
General
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Target
c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe
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Size
29KB
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MD5
bb2a7b59bbf9cfc488fc204488b4d9a0
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SHA1
ae84343d3d045540de7d56a25178a5abd59e7ebf
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SHA256
c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebd
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SHA512
1d2f5473167e568bbccd9d7621331df275781be0a49d64431f3051b6b12888e5e2b4fd6417a5fbd5bb4f855cf711c2230ac9d443ee43162046ca94970c978ff9
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/RhQ:AEwVs+0jNDY1qi/qZm
Malware Config
Signatures
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Detects MyDoom family 4 IoCs
resource yara_rule behavioral2/memory/2968-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2968-49-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2968-136-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2968-186-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 1668 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" c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/2968-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x000b000000023b9c-4.dat upx behavioral2/memory/1668-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2968-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1668-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1668-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1668-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1668-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1668-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1668-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1668-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1668-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1668-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2968-49-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1668-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0006000000000034-60.dat upx behavioral2/memory/2968-136-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1668-137-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2968-186-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1668-187-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe File opened for modification C:\Windows\java.exe c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe File created C:\Windows\java.exe c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.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 c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2968 wrote to memory of 1668 2968 c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe 82 PID 2968 wrote to memory of 1668 2968 c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe 82 PID 2968 wrote to memory of 1668 2968 c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe"C:\Users\Admin\AppData\Local\Temp\c921bcdba01bc7e3fea159c203a157b74733978ab738378571e100e769f6aebdN.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2968 -
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:1668
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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
MD5fb4e2b784b261fc1be1629d900bf09d5
SHA155ad20b27066d0b59bc75aff795009990373028f
SHA256f11f405a745fa36eeac1601ea69ee2266b346333a5732cb2c0e13a401587d9d8
SHA5126948d4b33dfcd77499251851230e53068de4783da65b0739f67087a835428b956ee572fb2c03953bb393e933982e383b0086cb5664332f41b400693ca9eed60d
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Filesize
320B
MD55d70817257bdf71a3b251cd736619252
SHA1f58ce4d191def12526a0faa1e438f558b2087436
SHA2560b91c7fb448cb069ec7693d1d8d0544fe5cf6e5d577a36b9711d84feda4a3687
SHA512cf863aa29cac323fae8f7ecfcd26d895899c97e6f2029e74637faeaa99453717b6e7fae28eaba65f3bf3458ff06d26ed80eb62820bf678773a6167bffec9d016
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Filesize
320B
MD56f8c7b751ed29867aa95d27a443e2264
SHA1b679863e302f72c540732babbfbc8979ba4e9ae6
SHA2561c799c8f7ba288654dd01befdc9b9d03b33ae18a88429f447990d90ca59c6007
SHA5123ca69f46b56ac9212243a739e9a3e23a093b5e5505e1c8fc8dbb23d46847473371780fbd15d63caecb22b1dfd2e965924ddd677766152f7d5726fa5c2fa6b69b
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2