Analysis
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max time kernel
120s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07/09/2024, 04:06
Behavioral task
behavioral1
Sample
3fc6a8a2b3788af6e4ccfd400f94fa80N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
3fc6a8a2b3788af6e4ccfd400f94fa80N.exe
Resource
win10v2004-20240802-en
General
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Target
3fc6a8a2b3788af6e4ccfd400f94fa80N.exe
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Size
29KB
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MD5
3fc6a8a2b3788af6e4ccfd400f94fa80
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SHA1
60ded98c713299f5a38b4265d993e743f706ebb9
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SHA256
338303b639584e2eee6597fb47b9f726089afaf6283e63cca6dadd67c50feb11
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SHA512
bf99505897928e282b47ab0ea19cd04ddc051918d51feb1a538c75a0268263b0cc60a84722df5ba1666f4f5cf06978ff28a0ec749c15ce36c4b068f61b7926de
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/XJ:AEwVs+0jNDY1qi/qvJ
Malware Config
Signatures
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Detects MyDoom family 7 IoCs
resource yara_rule behavioral2/memory/3260-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3260-32-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3260-37-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3260-129-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3260-147-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3260-154-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3260-191-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Executes dropped EXE 1 IoCs
pid Process 1328 services.exe -
resource yara_rule behavioral2/memory/3260-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x0008000000023461-4.dat upx behavioral2/memory/1328-6-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3260-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1328-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1328-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1328-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1328-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1328-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3260-32-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1328-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3260-37-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1328-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x000d000000021a4a-48.dat upx behavioral2/memory/3260-129-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1328-130-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3260-147-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1328-148-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1328-153-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3260-154-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1328-155-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3260-191-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1328-192-0x0000000000400000-0x0000000000408000-memory.dmp upx -
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" 3fc6a8a2b3788af6e4ccfd400f94fa80N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 3fc6a8a2b3788af6e4ccfd400f94fa80N.exe File opened for modification C:\Windows\java.exe 3fc6a8a2b3788af6e4ccfd400f94fa80N.exe File created C:\Windows\java.exe 3fc6a8a2b3788af6e4ccfd400f94fa80N.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 3fc6a8a2b3788af6e4ccfd400f94fa80N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3260 wrote to memory of 1328 3260 3fc6a8a2b3788af6e4ccfd400f94fa80N.exe 82 PID 3260 wrote to memory of 1328 3260 3fc6a8a2b3788af6e4ccfd400f94fa80N.exe 82 PID 3260 wrote to memory of 1328 3260 3fc6a8a2b3788af6e4ccfd400f94fa80N.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\3fc6a8a2b3788af6e4ccfd400f94fa80N.exe"C:\Users\Admin\AppData\Local\Temp\3fc6a8a2b3788af6e4ccfd400f94fa80N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3260 -
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:1328
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
312B
MD5e5c2364375c0a8a786a9508a840b6299
SHA1bec1874db0d2348274b6656d1383e262f73e2bc6
SHA25651b67ae1066eb179562cf80a8a156bbd4b139b83072f610bf62c0b6d58ed17f3
SHA512ee19a8fa40bc7e991ac289eb30ceec8264d6071f124e99791022961c99f25b97def4f13fa96149eb52786d1104d85d20410e65a333304c0df6ba858472a557d3
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Filesize
25B
MD58ba61a16b71609a08bfa35bc213fce49
SHA18374dddcc6b2ede14b0ea00a5870a11b57ced33f
SHA2566aa63394c1f5e705b1e89c55ff19eed71957e735c3831a845ff62f74824e13f1
SHA5125855f5b2a78877f7a27ff92eaaa900d81d02486e6e2ea81d80b6f6cf1fe254350444980017e00cdeecdd3c67b86e7acc90cd2d77f06210bdd1d7b1a71d262df1
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Filesize
29KB
MD54e290b403028a214eecbc2661cd03b6d
SHA1a7a60214e0c46b09fd0e23ef7121511e790070a5
SHA256639b8e05abdca720e5d83cbef79b446113601a86cd0567502960061d6a9c95b8
SHA512467ab0848ce05d41d18d5ea79bb0f86bda677499bc0146f847dcc2c094f12ab67b59939f0233144fae98e2fb9dd11ab5086ed9ac4c3839aa56eb9be4c5e75f9e
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Filesize
352B
MD508ffbd13de3a30f0e80a1d818f212da4
SHA1da6539a26b92384cd2dc61d10e83757dffe23266
SHA256c964ac2a09643ba8fce7b4173dd02bd1430865b633993c538c6aa215ff514607
SHA5125b5ff960e14040ee1a26cf78f4d919993fb07e4ba89b4b2a39c07adb6a0e8035f40ba9b356423841f08558b890e693b7c2d14a2a4eb44e894bd0586e31918efe
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Filesize
352B
MD5e47973e40a104c36816b1484e0c0cb47
SHA1c6a28602f3e502d0541312a5f86588e9351d625f
SHA256c24cf3c1ba09225c22db751f042984ca6c3202ef7e054b6cd1726bc25b425bf7
SHA51279d3b427703af86fae40f7b96bda481e344e04d2d8e4f2405fd178d5a37b4775b84104652705a82d5dfb1c04ebb10d9d219b686173774efba3eb6a4183c51d9a
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2