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
04-01-2025 15:44
Behavioral task
behavioral1
Sample
99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe
Resource
win10v2004-20241007-en
General
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Target
99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe
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Size
29KB
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MD5
fca4d8593e6c9ccbd2fbf82e8412fe10
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SHA1
f6f277966bff039801133a54f43608c180022dd8
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SHA256
99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4
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SHA512
a1fc9c58bfd80bc1b1db27b9163e2ccf8f9c37a67d27113945ce0a0982a62db595dbe5ad90fe476ab762bf1281ac57f801dfb8c7d9bde51ba23e84e05f0d7aec
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/NX:AEwVs+0jNDY1qi/ql
Malware Config
Signatures
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Detects MyDoom family 7 IoCs
resource yara_rule behavioral2/memory/5080-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5080-32-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5080-37-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5080-127-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5080-152-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5080-159-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/5080-192-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 4540 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" 99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/5080-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x0009000000023bac-4.dat upx behavioral2/memory/4540-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5080-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4540-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4540-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4540-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4540-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4540-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5080-32-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4540-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5080-37-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4540-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x000600000001e5bc-51.dat upx behavioral2/memory/5080-127-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4540-128-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5080-152-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4540-153-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4540-158-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5080-159-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4540-160-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/5080-192-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4540-193-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe File opened for modification C:\Windows\java.exe 99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe File created C:\Windows\java.exe 99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.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 99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5080 wrote to memory of 4540 5080 99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe 83 PID 5080 wrote to memory of 4540 5080 99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe 83 PID 5080 wrote to memory of 4540 5080 99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe"C:\Users\Admin\AppData\Local\Temp\99df870c5eb74b0edf5aea83009605ad24062bf0bc3d118f7439d9ced0f7b7b4N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5080 -
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:4540
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
303B
MD5716cb7f5b783829c36e49996fc0bf627
SHA163471c20af48dd7052d63a695a12d86e2fc6871d
SHA2566ad9b32ca3ec43c9017ab8f11b6f82e7ed43083efddf1ef74a3165f778312b40
SHA512c3d126513cad64785ae5a16c5564cee6d7da1d26682d93d00a04937d9f98a89f54c74f5dda0c200c77f092fd8092db4f4f7a7a8544057eeb83d058f28fdf0346
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Filesize
312B
MD5c15952329e9cd008b41f979b6c76b9a2
SHA153c58cc742b5a0273df8d01ba2779a979c1ff967
SHA2565d065a88f9a1fb565c2d70e87148d469dd9dcbbefea4ccc8c181745eda748ab7
SHA5126aecdd949abcd2cb54e2fe3e1171ee47c247aa3980a0847b9934f506ef9b2d3180831adf6554c68b0621f9f9f3cd88767ef9487bc6e51cecd6a8857099a7b296
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Filesize
25B
MD58ba61a16b71609a08bfa35bc213fce49
SHA18374dddcc6b2ede14b0ea00a5870a11b57ced33f
SHA2566aa63394c1f5e705b1e89c55ff19eed71957e735c3831a845ff62f74824e13f1
SHA5125855f5b2a78877f7a27ff92eaaa900d81d02486e6e2ea81d80b6f6cf1fe254350444980017e00cdeecdd3c67b86e7acc90cd2d77f06210bdd1d7b1a71d262df1
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Filesize
312B
MD55431b34b55fc2e8dfe8e2e977e26e6b5
SHA187cf8feeb854e523871271b6f5634576de3e7c40
SHA2563d7c76daab98368a0dd25cd184db039cdd5d1bc9bd6e9bb91b289119047f5432
SHA5126f309dd924ba012486bcf0e3bafe64899007893ea9863b6f4e5428384ad23d9942c74d17c42a5cf9922a0e0fd8d61c287a2288a945a775586125d53376b9325c
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Filesize
29KB
MD5a8a672f47850a26155491d134f05d182
SHA10b6a592ca0c98c6f5e809e0e7e451fa7aa5ff4b5
SHA256a0a3b000fa47525f3ff3580d3f99d34556be496091b57565af5dbc730ce8081c
SHA512375daad2e3cb3271f9de0a459786555381154f647c4ed8c7c376b325655ab2060dd34282e19649170fe505715ccb20262cb0792f0cafbfaf437ef9f77ec247a6
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Filesize
352B
MD5331e845fae926a9ec9a34666a0f0acad
SHA1425fc671f9b1225ae830278fd0404546dcb91854
SHA256064e4a602dc3051b7263f0be010cd614630117e042203561408ac81272f3b707
SHA5128e54b68a0c971905156e5046dbe41ae48cb462d1c940810d3b6e363ee8eec89d3598126ee662aa81ccdc26b412af3716930cbd8dd9ca47b2e1595819102963cb
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Filesize
352B
MD574f6007ee3ed8ebdd0ccdb1027ceefc1
SHA1289183c7c8caa781a30c4c679d19013c7d48330e
SHA256a33c13beb12d04172c1dec784b8a98561683fe6c662f5b34dacbc21558fab8b1
SHA512db4a4519d1175a9e1f751c38840528e3943413728ab3345b5e56c689e6928d2c80305290e8af9ca1d9b19a3ae06355d823a42c6e859d00537ee63b6515ddac9b
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2