Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25-12-2024 19:20
Behavioral task
behavioral1
Sample
40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe
Resource
win10v2004-20241007-en
General
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Target
40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe
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Size
29KB
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MD5
e71203097fe5dd932255489e81e2755b
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SHA1
214f05e8d4a09aa5f2de1d738c8f1b4ad4d8b967
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SHA256
40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e
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SHA512
fbd0c2963baf801b986c62360e163dcff7bec1b43076f99461a58bddc539b3fbef6015c514f18ec27e5a1955c4866b5e47788fcc777a0089b30e9561f8f8a050
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/5hp:AEwVs+0jNDY1qi/qRT
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral2/memory/2136-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2136-56-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2136-61-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2136-150-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2136-176-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 4196 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" 40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe -
resource yara_rule behavioral2/memory/2136-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4196-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0008000000023c9f-4.dat upx behavioral2/memory/2136-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4196-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4196-52-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2136-56-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4196-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2136-61-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4196-62-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0004000000000707-72.dat upx behavioral2/memory/2136-150-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4196-151-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2136-176-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4196-177-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\java.exe 40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe File created C:\Windows\services.exe 40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe File opened for modification C:\Windows\java.exe 40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.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 40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2136 wrote to memory of 4196 2136 40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe 84 PID 2136 wrote to memory of 4196 2136 40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe 84 PID 2136 wrote to memory of 4196 2136 40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe"C:\Users\Admin\AppData\Local\Temp\40b1a8c22cf69a4cecce1c2fee1f5a5f29a7340cf28bf5076fe79e645d29e28e.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2136 -
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:4196
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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
MD52e8e552f8e878bc34b55f28f1537ac1b
SHA1311d80e58aa439d8a479115c31ad5d0a1960946d
SHA256c1234bbb9b6c2bdb47e0aa3663ac4a496e3ba5b3a995c32a3cec05bf17eaa057
SHA51271e9f06cade57a0d4143ed15f19dcd46a9a43c8706c9c2d52aefed8360f238c7f8a29e4f1b491739ea135b436186e0fa3826f5ab06294b518d9211588368c585
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Filesize
320B
MD5e52ae741ec8bde4f665cafd12f0b63a0
SHA12b0d7a5fc9e4e714bca7297cddca7444dc6b48ec
SHA256a0bf95e04df2300a42ec95f4ea0906cfd8e0641e9991fb3e41bbdf490e6276c7
SHA5121d97ca2dac5e9bd605530273f20f7acec9fbab573abd775b62f7380dda17134189b4912462ef9c50383dda75fe8967889e97842b5f568f3bec23d84620ea1509
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2