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
12-01-2025 12:45
Behavioral task
behavioral1
Sample
401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe
Resource
win10v2004-20241007-en
General
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Target
401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe
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Size
29KB
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MD5
64a849f43bfb12c26b8d185aecdbe9b0
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SHA1
7e16d3c3db52cfb8dbd050a1a259552410f31818
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SHA256
401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9
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SHA512
935f70b81cdb0798c6d8126ad8e3744ea5ae6f77a29f431cb0b6ef11e9dc10a6daa1ac5fc94ebb4a73e41639f0ab29eb9befb7154cb7ecc8ac6399f206ce355f
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/GhP:AEwVs+0jNDY1qi/qu5
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral2/memory/2512-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2512-39-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2512-44-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2512-150-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2512-171-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2684 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" 401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/2512-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x0008000000023c61-6.dat upx behavioral2/memory/2684-7-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2512-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2684-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2684-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2684-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2684-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2684-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2684-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2684-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2512-39-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2684-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2512-44-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2684-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x000800000001e786-50.dat upx behavioral2/memory/2512-150-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2684-151-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2512-171-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2684-172-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2684-176-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe File opened for modification C:\Windows\java.exe 401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe File created C:\Windows\java.exe 401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.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 401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2512 wrote to memory of 2684 2512 401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe 83 PID 2512 wrote to memory of 2684 2512 401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe 83 PID 2512 wrote to memory of 2684 2512 401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe"C:\Users\Admin\AppData\Local\Temp\401881f4e77f077dfccec3fd57dc118767a953dfed24cbc3445cd9ffd28b76e9N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512 -
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:2684
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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
MD56de117073cfa3ec1b8c14987df812eee
SHA1e92cd6a824f3bd569f66c9141de986a12cec475c
SHA256502a75dd537c4f20f4039891b0f16cf67f9e443b97653b43b706b0ab003cd85c
SHA512428c99cac2e24a3885c737c09da4028f359d8e345ae043aa07f838d44a73b5c07af83681460e7ddf45141a6b283f9d5d160eefbfc297e5c751052c7564c57de9
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Filesize
320B
MD516254dbb755c27beed56356be75e24e5
SHA1c81d8af6d04be87071d6ce38b7d43d7711ac6f52
SHA256e16bb8dc1fa34dc9f7b7f2fffb667e6ac6d5b7205b848ea8a85818489570f4cf
SHA512f4435fc5e987b165877db982c3c09032147ef0305cf967ed415e133b8ffc3529dbe52df9fe5973a41aa8adc174c7ea0cd5a67f625c8b7fe123fa30a4cbed74d2
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Filesize
320B
MD589d1bdaa855c8b2e30212d107d7c05a6
SHA16b2dbe3eb9b8d71291c57c9bb4cc9dc85df7d407
SHA256d08e6aaad5ce4fd5e5cbe33900b4db4bf347236f608baf8754af58686e92b413
SHA5123e0e0fea7910c7ff480a0eafe6a6d432d54a693678f34812a49e63584d1e57a965caedf5a965413a2154494a73046894b55ffe55285621ee77ced5cdb87ba9db
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2