Analysis
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max time kernel
0s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
07/01/2024, 19:37
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a8bf8166c67cc2445b507916624dc2c9.exe
Resource
win7-20231215-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
a8bf8166c67cc2445b507916624dc2c9.exe
Resource
win10v2004-20231222-en
5 signatures
150 seconds
General
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Target
a8bf8166c67cc2445b507916624dc2c9.exe
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Size
260KB
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MD5
a8bf8166c67cc2445b507916624dc2c9
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SHA1
6ce3ceea9fd43f9b9f5519545dcd3dee84f1075e
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SHA256
4451d9d0075891bd96dc577628c0cfbf17a905cd7357e9e0038726c407ab576f
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SHA512
42579b291bb643b389bed051ec0045f9616856eaaa19f703dede3e0e382f60305279325974d0e6a5d6af321d1ace8f8219aca316a795ac034ec0f682887f2675
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SSDEEP
6144:0tX21Y7+PO6hIKxeYBy4GPIRMKFpIq7EbjkUvudrhTl:ChIhIKxeRHPI7FpwbjkMWhTl
Score
10/10
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\A8BF81~1.EXE," a8bf8166c67cc2445b507916624dc2c9.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\A8BF81~1.EXE" a8bf8166c67cc2445b507916624dc2c9.exe -
Modifies WinLogon 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\A8BF81~1.EXE" a8bf8166c67cc2445b507916624dc2c9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\a458c005 = "LL¡À¢Þ‡òË\x10z+Ë\x13nÌ'\u008d\x05ˆÞ2ûÕ`5Œ9\rç€ô·E„–" a8bf8166c67cc2445b507916624dc2c9.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2476 a8bf8166c67cc2445b507916624dc2c9.exe 2476 a8bf8166c67cc2445b507916624dc2c9.exe 2476 a8bf8166c67cc2445b507916624dc2c9.exe 2476 a8bf8166c67cc2445b507916624dc2c9.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeSecurityPrivilege 2476 a8bf8166c67cc2445b507916624dc2c9.exe Token: SeSecurityPrivilege 2476 a8bf8166c67cc2445b507916624dc2c9.exe Token: SeSecurityPrivilege 2476 a8bf8166c67cc2445b507916624dc2c9.exe Token: SeSecurityPrivilege 2476 a8bf8166c67cc2445b507916624dc2c9.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a8bf8166c67cc2445b507916624dc2c9.exe"C:\Users\Admin\AppData\Local\Temp\a8bf8166c67cc2445b507916624dc2c9.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2476