Analysis
-
max time kernel
148s -
max time network
113s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
08/01/2024, 05:30
Behavioral task
behavioral1
Sample
4a8fa9f1e081650bc4257cf7005c9603.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4a8fa9f1e081650bc4257cf7005c9603.exe
Resource
win10v2004-20231222-en
General
-
Target
4a8fa9f1e081650bc4257cf7005c9603.exe
-
Size
680KB
-
MD5
4a8fa9f1e081650bc4257cf7005c9603
-
SHA1
2e196f7d0a92bccaf528a35800978d943ee5ae98
-
SHA256
a11b8771306f86dd52ae7a96fcfdd995e5b1af6ed976c0b2371537fa4f5696c6
-
SHA512
e311207c396951d1823753815870803ef72b502e3657b3f43b7c3d91501818beaad64528ffff63ff68593e9b0526805177b8f2fcb9ae15bbb656aee895023875
-
SSDEEP
12288:d3DAAw0jmgI7E8Gq2VvhxNOMfg33sUKpfcsFmcyouqa3wTQiph:d3DXw0agI7EjVvHXg33OpfPFmcyouqaC
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/4348-0-0x0000000000400000-0x00000000005B6000-memory.dmp upx behavioral2/memory/4348-61-0x0000000000400000-0x00000000005B6000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 1 IoCs
pid pid_target Process procid_target 3912 4348 WerFault.exe 15 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Internet Explorer\IESettingSync 4a8fa9f1e081650bc4257cf7005c9603.exe Set value (int) \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" 4a8fa9f1e081650bc4257cf7005c9603.exe Key created \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch 4a8fa9f1e081650bc4257cf7005c9603.exe Set value (str) \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" 4a8fa9f1e081650bc4257cf7005c9603.exe -
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ 4a8fa9f1e081650bc4257cf7005c9603.exe Key created \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ 4a8fa9f1e081650bc4257cf7005c9603.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4348 4a8fa9f1e081650bc4257cf7005c9603.exe 4348 4a8fa9f1e081650bc4257cf7005c9603.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4348 4a8fa9f1e081650bc4257cf7005c9603.exe 4348 4a8fa9f1e081650bc4257cf7005c9603.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\4a8fa9f1e081650bc4257cf7005c9603.exe"C:\Users\Admin\AppData\Local\Temp\4a8fa9f1e081650bc4257cf7005c9603.exe"1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4348 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4348 -s 28602⤵
- Program crash
PID:3912
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4348 -ip 43481⤵PID:3980
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
13KB
MD56eff35ce2d7c842fa8bcfc9468ed818d
SHA1227ed317b528d9f2d1c74092d235e99b9dec511b
SHA256f0e49725d556ff11b0c532412c923b74cfd0f4539045e845bd10212a536c3b24
SHA5125f31841b920dfa8f9807b6c2a80097af19c9380b6ccf23a33b6da7cc03e100456b6d6bdc3b8a89aece3115c1dd6a89082ab48690224d5c3c3dbfdd8b1442b6d9
-
Filesize
202KB
MD5a4fdd77e182bd2fabe300a47b5617a35
SHA1e002b335c75b5edefcd251962f61f53a2ab8e0f2
SHA2568b59592d67eadc703af6cdd5ba8d077f9f9485d01fb6405555614335f89be99b
SHA512ddcccde1c129f8f71fb39685abc615c4202b8b3dfc12cedd7d9cca2f97b308fc14b64497826421fa9df3d1cf54bdae9c085051af0a8d393cd3d556a6578d4085
-
Filesize
89KB
MD5219073097031d9c1a95a1291d66f3a10
SHA12b7996b01d90b7f424f2a2e6063947461db4b2b2
SHA256232066e3f6f1351afdaee1acb70c409766641fd5669e0b55ce7c77fac0a857ef
SHA5129ad2745f96cf79a4d59393cc3fbb3958b244013f6798c12abe41e37fca80df3c7cedab4b47cbd197645c86b31077388ec8f01ea8d67c5feacbef95b1ae7582b5