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
19-01-2025 13:23
Behavioral task
behavioral1
Sample
91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe
Resource
win10v2004-20241007-en
General
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Target
91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe
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Size
29KB
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MD5
76dc64c4dd0e5784a3914d5679b39560
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SHA1
7b1a73b8adcf53377448eb593c6440d7e0958a5b
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SHA256
91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1
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SHA512
dc3d5b57121258679f852db56c7110c720cee758bea152ee7dffdc7647d073357318e1eed5a388020f199c0fe122c396fced8825b4a9b2ae7b5a85143d0d1116
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/Sg:AEwVs+0jNDY1qi/qZ
Malware Config
Signatures
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Detects MyDoom family 6 IoCs
resource yara_rule behavioral2/memory/2032-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2032-37-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2032-39-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2032-134-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2032-173-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2032-180-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 1848 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" 91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/2032-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x0007000000023c87-4.dat upx behavioral2/memory/1848-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2032-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1848-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1848-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1848-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1848-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1848-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1848-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2032-37-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1848-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2032-39-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1848-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0003000000021ed4-50.dat upx behavioral2/memory/2032-134-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1848-135-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2032-173-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1848-174-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1848-176-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2032-180-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1848-181-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe File opened for modification C:\Windows\java.exe 91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe File created C:\Windows\java.exe 91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.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 91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2032 wrote to memory of 1848 2032 91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe 83 PID 2032 wrote to memory of 1848 2032 91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe 83 PID 2032 wrote to memory of 1848 2032 91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe"C:\Users\Admin\AppData\Local\Temp\91a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032 -
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:1848
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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
MD576dc64c4dd0e5784a3914d5679b39560
SHA17b1a73b8adcf53377448eb593c6440d7e0958a5b
SHA25691a4609b21bbbecaac2f94b0073838e74e408209717e173f620eaf2343daa8b1
SHA512dc3d5b57121258679f852db56c7110c720cee758bea152ee7dffdc7647d073357318e1eed5a388020f199c0fe122c396fced8825b4a9b2ae7b5a85143d0d1116
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Filesize
352B
MD56e3790bcf2a2c6f94436f1678e15ada6
SHA141027d04458859f331df97e4d8f6fa7f68860d53
SHA2568dd33a506375879398a75e0bc9c0fe35c65392377ebc5be05c271bfc62959dae
SHA512cf53722ed70a86a3a96c1c9808e1485667905e03b801a86e115fb8f987dd6b296b8fec590df7881f63767204882b340529fa4282858fb06ca2581602d5512f9e
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Filesize
352B
MD5b2792b01522f5c293266045aeaa67233
SHA1180373522fb2827fb0771cfa5eb038e04370de14
SHA256aa76f35d1366d46610c0d12f4128adad4739b4bc64cb6f116e28ba1dd100cdb3
SHA51276eab81cf8b7a22d9d2e732c071338d943c9a658b664174a3842754f6c5b40b042803805a33aca34fc0ed196492215bf9a91a994725e837f9104616c0800002a
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Filesize
352B
MD59c6daf0146e37bedc5135760ad4a39e9
SHA10f94485c46b86bdf3194523017365d72d1641ccc
SHA256fa8d4d24c6bf0f6edf4e52547109e77bb964d8003fce4989afefeef6f78dec2c
SHA51287c26843625ef70ab9622ff290b0ecc52bfbd43dca09aaa8b857f29cce3fc80d3f2b8ab66b6ee468b5ebf95ce5dbf595cb8fa29448830a3b648f86bf6dd9690f
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2