Analysis
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max time kernel
120s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
11/01/2025, 16:58
Behavioral task
behavioral1
Sample
a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe
Resource
win10v2004-20241007-en
General
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Target
a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe
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Size
29KB
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MD5
5c99b380f17e389ee4a50b1b79a8c45f
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SHA1
bc037b40c11d23623f9c42a33aa2a8b20a597310
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SHA256
a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0
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SHA512
4c0e4ae9ee9b2e7162f4ebe4d4416c134e6929b10c1d515fd3203a1f0e94ef7baa9fae80494618cbd0bacc435a219e2c1eca40e156ce0af544df57c98e4fa27f
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/sh/:AEwVs+0jNDY1qi/q0J
Malware Config
Signatures
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Detects MyDoom family 2 IoCs
resource yara_rule behavioral1/memory/2624-17-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2624-57-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2876 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" a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2624-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/files/0x0008000000015d75-6.dat upx behavioral1/memory/2876-11-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2624-17-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2624-18-0x0000000000220000-0x0000000000228000-memory.dmp upx behavioral1/memory/2876-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-22-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-27-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-34-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-39-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-44-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-46-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-51-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-56-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2876-58-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2624-57-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2876-63-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0008000000015e47-73.dat upx -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\java.exe a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe File created C:\Windows\java.exe a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe File created C:\Windows\services.exe a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.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 a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2624 wrote to memory of 2876 2624 a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe 30 PID 2624 wrote to memory of 2876 2624 a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe 30 PID 2624 wrote to memory of 2876 2624 a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe 30 PID 2624 wrote to memory of 2876 2624 a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe"C:\Users\Admin\AppData\Local\Temp\a177a27023d435cd8caf075b22656406bf3e3ecef80fa5f8339e3cb804e392a0.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2624 -
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:2876
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD5cab810a01f5fc72ee401e5a40232d8dc
SHA1cb69017fd8c972a0775d10f60db68d96c7996ee6
SHA256cf5e2694b087db7ad50aab3ebcdd6d336fbb8eb10afb8fde6a0fe367495e9ba2
SHA512aff3526a559d9f82c9687d0c1972626dacaa6ea23122147a0c9ae9042d557f829856b153b6f2a606cb731ae2d0a0618d3a4ea0a8f12945e30379c2e8eb52a593
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Filesize
320B
MD56f120caca86b4c1de74d51a7da6d445a
SHA1c4c8ff6d7d5664b70edba939266f90666964f9d8
SHA256ffd80e370e17e2da258ef3f07a7aefa90bac4590e5ee72bcb007aa81aeea0913
SHA5126f69dbc20a7e5b99bf008c527e61b244d0d1f1e24b5f11ebe4acc148291077524bd070396a0904388065da41b10bd54ad21b2efc325390de357d4725faecdb3a
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2