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
13-11-2024 20:06
Behavioral task
behavioral1
Sample
b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe
Resource
win10v2004-20241007-en
General
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Target
b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe
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Size
29KB
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MD5
c54eb8ed81b43283f4ab4d11e6f1a538
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SHA1
df821b209e246bec57ea8cf18ff3437ccdb9d491
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SHA256
b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4
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SHA512
cafdc00b686b90246801694b93cc83e146daa21d64d9fbf83ad3464b8b13b5876083203bb25ae9202b6906ba7e98e74cb930adfd4e4664b91b74c250614b1491
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/hn3N:AEwVs+0jNDY1qi/qX
Malware Config
Signatures
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Detects MyDoom family 2 IoCs
resource yara_rule behavioral2/memory/1924-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/1924-56-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 4032 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\Services = "C:\\Windows\\services.exe" services.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\JavaVM = "C:\\Windows\\java.exe" b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe -
resource yara_rule behavioral2/memory/1924-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x000b000000023b4a-4.dat upx behavioral2/memory/4032-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1924-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4032-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4032-52-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1924-56-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4032-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0003000000000709-62.dat upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe File opened for modification C:\Windows\java.exe b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe File created C:\Windows\java.exe b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.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 b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1924 wrote to memory of 4032 1924 b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe 83 PID 1924 wrote to memory of 4032 1924 b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe 83 PID 1924 wrote to memory of 4032 1924 b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe"C:\Users\Admin\AppData\Local\Temp\b3b97abb41fa7b8efa8557f53f0bceb65da756f889a9c9dd3e91f33909f6a7d4.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924 -
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:4032
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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
MD5af58ddedb7d7b238c3ed2df4e85fea3e
SHA12e41ef16fb32c1c482a955153cd3edd9b31aa6dc
SHA2563cc3cff77db75d51ed3ce83ab09ea89a16f36d82347bd46847b46bbef6fc8657
SHA512f9c32c83c7360f82dd1e01a2c72484d09e8ac543680f7e9303d0f221a050beda73bd78ba031bd570677e87c9c86616071b4c2ec3a419865c1a1590300b9d5e53
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Filesize
352B
MD587fe0360b5e36957f7e703784ea7325b
SHA1482f6db1ab92af38e4a97e8dc782c2cbf9c55f2e
SHA25650a713b1790cd98eabf9762d267f805d2eebf8c33c73a9a383c56a408bd93842
SHA512f3e65a81fafdd9c3e35b49935a0abcfe0a6d79e72c5b72d2feffae4d16c6ed3f57b33477156298290689b6bfcda45090d8ab4cb0dfd3368bc88bf12bb93cc739
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2