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Analysis
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max time kernel
150s -
max time network
134s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
26/12/2023, 10:28
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
6755b66e4298af86a0ddfc688bacc94a.exe
Resource
win7-20231215-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
6755b66e4298af86a0ddfc688bacc94a.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
6755b66e4298af86a0ddfc688bacc94a.exe
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Size
260KB
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MD5
6755b66e4298af86a0ddfc688bacc94a
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SHA1
ccae9238dea807da87f71dffb56a373f3000776b
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SHA256
617af600c9ecf44b599afed0a0857a48f1687f4498dd7f4abd46c56e3e24727e
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SHA512
30eae77c076496d8ecfd77a1fbb7a7446d902107f5f9ac264fd9c4bb9a2bd0411dfeba4a2ec94fab18f3aac877e7aa36bb8dfec14a8f2854ee8ba23f1135d629
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SSDEEP
3072:8sgxOTiooHiUS41IGymUU5fkUehyB456J2Lw6BoiEx4PvsL2o5n33ygoe:n3ToHiUBiGyuT236J2deiEx4PvRo53Fv
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 6755b66e4298af86a0ddfc688bacc94a.exe Set value (int) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yuagac.exe -
Executes dropped EXE 1 IoCs
pid Process 2104 yuagac.exe -
Loads dropped DLL 2 IoCs
pid Process 3040 6755b66e4298af86a0ddfc688bacc94a.exe 3040 6755b66e4298af86a0ddfc688bacc94a.exe -
Adds Run key to start application 2 TTPs 52 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /f" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /O" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /p" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /w" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /l" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /n" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /S" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /Z" 6755b66e4298af86a0ddfc688bacc94a.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /j" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /G" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /B" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /U" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /Z" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /e" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /X" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /u" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /g" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /C" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /x" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /c" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /m" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /d" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /N" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /L" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /P" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /i" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /y" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /Y" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /k" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /r" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /A" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /J" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /K" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /b" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /z" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /h" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /a" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /Q" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /R" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /D" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /o" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /v" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /I" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /q" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /W" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /E" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /V" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /M" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /s" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /t" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /T" yuagac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuagac = "C:\\Users\\Admin\\yuagac.exe /F" yuagac.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3040 6755b66e4298af86a0ddfc688bacc94a.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe 2104 yuagac.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3040 6755b66e4298af86a0ddfc688bacc94a.exe 2104 yuagac.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3040 wrote to memory of 2104 3040 6755b66e4298af86a0ddfc688bacc94a.exe 28 PID 3040 wrote to memory of 2104 3040 6755b66e4298af86a0ddfc688bacc94a.exe 28 PID 3040 wrote to memory of 2104 3040 6755b66e4298af86a0ddfc688bacc94a.exe 28 PID 3040 wrote to memory of 2104 3040 6755b66e4298af86a0ddfc688bacc94a.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\6755b66e4298af86a0ddfc688bacc94a.exe"C:\Users\Admin\AppData\Local\Temp\6755b66e4298af86a0ddfc688bacc94a.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Users\Admin\yuagac.exe"C:\Users\Admin\yuagac.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2104
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
260KB
MD52f1e559af7c202a2759f73098238310a
SHA1321e1e7e1f4fa3a8107e9e8f60cc803511192dcd
SHA256722b5116e23326eb56639b9ca727c15b617fd5e513d2081d48c34da226ad9e94
SHA5129b60c52628568a7913cd8ee8ac0de842f72ec96e9804f7feba2024fc83a900410c0e32780b5ad20d10fc76e84b8579ed55d7f22b86db0c7acbed890e52333d48