Analysis
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max time kernel
150s -
max time network
38s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
30-09-2021 01:02
Static task
static1
Behavioral task
behavioral1
Sample
D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe
Resource
win10-en-20210920
General
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Target
D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe
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Size
472KB
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MD5
39aa03c8bedfeb3ffec83ea5dff33e47
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SHA1
52fcffd16126dfe192f5956edccb5259eb8c5b91
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SHA256
d8043d746dc108ac0966b502b68ddeaba575e841edfa269e8392a747c6d63015
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SHA512
fa9de9d657fcb8ca63aaf3180c7cdcf6c4053b4bbab0a43365ad5fc0104d7f20aa0d49021aaad7b25eb8c3a07c8343ffd7f2f4f684b9aa875771fd1df32ffa7c
Malware Config
Extracted
azorult
http://www.11n.us/robin/index.php
Signatures
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Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
reg.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce reg.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Udmattelsens7 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ovennvnt.exe" reg.EXE -
Drops file in Windows directory 1 IoCs
Processes:
D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exedescription ioc process File opened for modification C:\Windows\畓潲敦据敥n D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies registry key 1 TTPs 1 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exepid process 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exepid process 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exetaskeng.exedescription pid process target process PID 1080 wrote to memory of 1660 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe schtasks.exe PID 1080 wrote to memory of 1660 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe schtasks.exe PID 1080 wrote to memory of 1660 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe schtasks.exe PID 1080 wrote to memory of 1660 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe schtasks.exe PID 1080 wrote to memory of 1856 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe schtasks.exe PID 1080 wrote to memory of 1856 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe schtasks.exe PID 1080 wrote to memory of 1856 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe schtasks.exe PID 1080 wrote to memory of 1856 1080 D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe schtasks.exe PID 1996 wrote to memory of 1212 1996 taskeng.exe reg.EXE PID 1996 wrote to memory of 1212 1996 taskeng.exe reg.EXE PID 1996 wrote to memory of 1212 1996 taskeng.exe reg.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe"C:\Users\Admin\AppData\Local\Temp\D8043D746DC108AC0966B502B68DDEABA575E841EDFA2.exe"1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC HOURLY /MO 23 /TN "Udmattelsens7" /TR "reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce" /v "\""Udmattelsens7"\"" /f /t REG_SZ /d "\""C:\Users\Admin\AppData\Local\Temp\ovennvnt.exe\""2⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /run /tn "Udmattelsens7"2⤵
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C:\Windows\system32\taskeng.exetaskeng.exe {0AC4DE90-EAE6-47BA-B2FD-499696C47945} S-1-5-21-2455352368-1077083310-2879168483-1000:QWOCTUPM\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.EXEC:\Windows\system32\reg.EXE add HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce /v "Udmattelsens7" /f /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\ovennvnt.exe"2⤵
- Adds Run key to start application
- Modifies registry key
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1080-62-0x0000000075D11000-0x0000000075D13000-memory.dmpFilesize
8KB
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memory/1080-65-0x0000000077BB0000-0x0000000077D30000-memory.dmpFilesize
1.5MB
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memory/1080-64-0x00000000779D0000-0x0000000077B79000-memory.dmpFilesize
1.7MB
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memory/1080-67-0x0000000000400000-0x0000000000476000-memory.dmpFilesize
472KB
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memory/1212-68-0x0000000000000000-mapping.dmp
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memory/1660-63-0x0000000000000000-mapping.dmp
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memory/1856-66-0x0000000000000000-mapping.dmp