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
26-12-2024 06:36
Behavioral task
behavioral1
Sample
50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe
Resource
win10v2004-20241007-en
General
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Target
50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe
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Size
29KB
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MD5
2acfde5c15c7bd78297ee52fd49cf4c6
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SHA1
a9a014cf4ca7c6c29905f4bc10cc53bea6605d54
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SHA256
50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c
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SHA512
131ce94efa6cb81b79f4928ae2530bd2461bbb9ac8862915e2fb8bf3cdc9982bdb744bf407019bc1534c0f535050e24f543321c8b9fc6aecc7f9f97fd694fde2
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/G:AEwVs+0jNDY1qi/qO
Malware Config
Signatures
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Detects MyDoom family 2 IoCs
resource yara_rule behavioral2/memory/4576-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/4576-56-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 4160 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" 50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/4576-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x000b000000023b5b-4.dat upx behavioral2/memory/4160-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4576-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4160-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4160-52-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4576-56-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4160-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0004000000000703-67.dat upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe File opened for modification C:\Windows\java.exe 50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe File created C:\Windows\java.exe 50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.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 services.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4576 wrote to memory of 4160 4576 50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe 82 PID 4576 wrote to memory of 4160 4576 50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe 82 PID 4576 wrote to memory of 4160 4576 50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe"C:\Users\Admin\AppData\Local\Temp\50cf8a4532f1e8bad870cbecd2411fad5309bf51b26eba581be9a2785ccebc9c.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4576 -
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:4160
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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
MD5656ae51829148c4982db02ff21a421b9
SHA100c2fcb8cab35f1b470e6497444ab2f50b7f0339
SHA2561be1ae310cf8ad0ce29fdd28e8995d56736b978256b9aba233b41856612b31ab
SHA5122a25c6411f95956398cb038447901a12a9912322b12d49245eaac89e0eacbd3a5fcc78885a22b59efb8ed4d11a03162d96061a22f47816348c0b096a18a75894
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Filesize
320B
MD524c53e049614ad40f7213004d4bc22c3
SHA133dd46912fdd2138c7da3d0c81ee95c25b1de08f
SHA256724b2b4aeeff540438cbce462315bcac3afc66b1b8a91eb433cca2fec0be622a
SHA5121c370bd7dfabda1920d3a7335dfc5f8bf6c0c9da0039dd89d5c042f868fce52c472d1fadbbdadf752806fd23fe11689b55144b75d9cea7e63e83a5aea0f9cff5
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2