Analysis
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max time kernel
120s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
10-12-2024 18:20
Behavioral task
behavioral1
Sample
8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe
Resource
win10v2004-20241007-en
General
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Target
8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe
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Size
29KB
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MD5
3b8b289a10533505a4bf0b71914d11b0
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SHA1
738fa3b3b0d43dbacbf2c2777f0ec6f1c28c9318
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SHA256
8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7
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SHA512
71a6de4fe30b82466626e01193468375ff50e3754cab8e85624194aefcde14781a7e9adc4ce5eb04456d5c3f09835d5e306836f1562ad2e25a9c7b712d077d22
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/ghr:AEwVs+0jNDY1qi/q4J
Malware Config
Signatures
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Detects MyDoom family 3 IoCs
resource yara_rule behavioral1/memory/2500-17-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2500-57-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2500-79-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2544 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" 8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2500-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/files/0x0008000000016d4a-6.dat upx behavioral1/memory/2544-11-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2500-17-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2500-18-0x00000000001B0000-0x00000000001B8000-memory.dmp upx behavioral1/memory/2544-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-22-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-27-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-34-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-39-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-44-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-46-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-51-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-56-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2544-58-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2500-57-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/files/0x0008000000016d71-71.dat upx behavioral1/memory/2544-80-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2500-79-0x0000000000500000-0x0000000000510200-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe File opened for modification C:\Windows\java.exe 8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe File created C:\Windows\java.exe 8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.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 8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2500 wrote to memory of 2544 2500 8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe 30 PID 2500 wrote to memory of 2544 2500 8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe 30 PID 2500 wrote to memory of 2544 2500 8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe 30 PID 2500 wrote to memory of 2544 2500 8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe"C:\Users\Admin\AppData\Local\Temp\8940d97cac71ebc2d5a8b353b39ab56103ace09a2f54db282b611f4d24d221e7.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500 -
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:2544
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD50a1bd28fc6b935557347e812c068d625
SHA14b12eb8a5f990b00dce594e7493102e5e953ce88
SHA25660185ca0b510d7de5e418fba33ef7d7c9003ba9b096e38ab1ee9da2c0d1ace14
SHA512f20ef806e64466ab550b1a192d4d170b4f7f46068d6507e2ae7befd8595d6cceda442cc2efade4bbdd859782ef27eb3884f315495b24e62ccaef635a6bbea90d
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Filesize
320B
MD5ed382cf301ac5efcb7b2e5692097ed4e
SHA126477f10cd692181207bdb4d555a7942160ce85a
SHA2564ee5efb222a02929f519ea7853b160ada79dcd7fdb191d51f534e4af0ab8a0f2
SHA5120b656793bc39aeab8084e88dd3ef0b73a25733553b640f942115f6f672b4b5b1d8d094edc7968bc78818b996775cde27a92d782d370503b209973e688d252b64
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2