Analysis
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max time kernel
120s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
07-12-2024 20:39
Behavioral task
behavioral1
Sample
873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe
Resource
win10v2004-20241007-en
General
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Target
873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe
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Size
29KB
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MD5
bd5eac6a4a34db2ce0a01611c358b530
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SHA1
1f1cc737c8fade4a71bbb7db84b19500554ce79e
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SHA256
873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66
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SHA512
15bd3292516f1d16480b3f20bf19240ba6b9f7678e7ac8fde6743de299b5458ea50fe1c3756f8cdc87c7aeb7fb8695c8f01d59c2511f8df52294515a34089fab
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/I:AEwVs+0jNDY1qi/qA
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral2/memory/4024-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4024-39-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4024-44-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4024-144-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4024-164-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 4896 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" 873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/4024-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x000d000000023b6c-4.dat upx behavioral2/memory/4896-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4024-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4896-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4896-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4896-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4896-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4896-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4896-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4896-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4024-39-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4896-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4024-44-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4896-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x000e000000021a70-58.dat upx behavioral2/memory/4024-144-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4896-145-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4024-164-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4896-165-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4896-169-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe File opened for modification C:\Windows\java.exe 873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe File created C:\Windows\java.exe 873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.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 873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4024 wrote to memory of 4896 4024 873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe 83 PID 4024 wrote to memory of 4896 4024 873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe 83 PID 4024 wrote to memory of 4896 4024 873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe"C:\Users\Admin\AppData\Local\Temp\873a3da740736d9847d4f5ef4bbea455dcd65e2051206270ea931c9f39007d66N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4024 -
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:4896
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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
MD5a8df6adff449c94e3a375653e1377427
SHA12690b8d6272351a82e2ad5fee2216b190e3e3dbf
SHA256efa28c256cf100aa98d76f7afbafdaa94384a01418d4de2229be326c20336b46
SHA512dd710ac2f54ae498eccfe8f81bf9aaffeb1ab5df00c4b97c6ea8bf985765d929bb3f5817f80d788154bb70d109086ab70f9c0746a53cc358b48eef6889af30f6
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Filesize
352B
MD5267f95155cb1ba180b645162b783a82d
SHA1516d72fbbab57b3dbc07e81448ed4bd5898332e3
SHA256b8d4dc21da334e510b4dceeacad16f93f52e0de555f1ec38dd3dca575b45165b
SHA512f54afa0ef446e407e1750c96f76908255e2222502f4faae7528932c06bdaefaa9e402e11374558a9226a019fe8d2d4fbc7ff3323f4fbbc5ac8087c4cc42fcde7
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Filesize
352B
MD52c1d4165530ea5c1ac2beea5c88efa4a
SHA110aa9ef7402cfc5e63d3891b10fec4f05a4b6592
SHA256da29c132656beea14531c7bdfc9661064331112f3dc9e83b4a536c9f644a8c95
SHA51284f7aa19684464b9310e33d929793b13d8d72bdc492016c8b50f438cffb2579d4a6754cb255afb5c138f4ab1e1170030c7854d74e48b86d0de1d88be2f15be13
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2