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Analysis
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max time kernel
149s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
31/08/2023, 19:00
Static task
static1
Behavioral task
behavioral1
Sample
c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Resource
win10v2004-20230703-en
General
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Target
c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
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Size
76KB
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MD5
39a69e2092379cae354b478923c444f6
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SHA1
d73d141828c245976fdc08daf7db0a5a1a9f838c
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SHA256
c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6
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SHA512
ae20c74bc497e0b09e349cfb51a8471a18d7dfa22d188a8ce9e03dfb53225981edb1852af9d6aa9094a19502b8204aa3ab22f179a06fe3731489c086c4250540
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOppz:GhfxHNIreQm+Hiepz
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2812 rundll32.exe -
Loads dropped DLL 2 IoCs
pid Process 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe File created C:\Windows\SysWOW64\¢«.exe c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe File created C:\Windows\SysWOW64\notepad¢¬.exe c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe File created C:\Windows\system\rundll32.exe c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1693508457" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1693508457" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2812 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 2812 rundll32.exe 2812 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2472 wrote to memory of 2812 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 28 PID 2472 wrote to memory of 2812 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 28 PID 2472 wrote to memory of 2812 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 28 PID 2472 wrote to memory of 2812 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 28 PID 2472 wrote to memory of 2812 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 28 PID 2472 wrote to memory of 2812 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 28 PID 2472 wrote to memory of 2812 2472 c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe"C:\Users\Admin\AppData\Local\Temp\c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe"1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2472 -
C:\Windows\system\rundll32.exeC:\Windows\system\rundll32.exe2⤵
- Executes dropped EXE
- Modifies system executable filetype association
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2812
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
81KB
MD5730ce8c75536bea2bc116ccad9661218
SHA133ab52d182fbe2b8e73a8297884df1cc2cdb395a
SHA25666b9077e535cf985e53e50bf02342a90207f3f5e31359bca7f11141497e215e1
SHA512d770a1eff803ca129be5a9cfa8a8ffccde6526b64ca6dab68816a742f987b841d244e098d5b9d2d2f36ed75f95769c4a2284cc69eb7065c38a314cd1625ab5bf
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Filesize
85KB
MD5b51c970cff1668ef44e358c5fc13659d
SHA1d34b379a210b201b05443a42565105f0b962f300
SHA25672bf26db6f4250309754fa9c0a374c770f7807d93c45174e90b0036f80294871
SHA51257439e0ae71af88d80a0dc5a8d1d42c5c73e018ffb0a9de0cd8a8dcbf6ddf98221d0b048e2ef2e6bdbdee53d06f3e1e508f4e171a900634d826dce47e06e8288
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Filesize
85KB
MD5b51c970cff1668ef44e358c5fc13659d
SHA1d34b379a210b201b05443a42565105f0b962f300
SHA25672bf26db6f4250309754fa9c0a374c770f7807d93c45174e90b0036f80294871
SHA51257439e0ae71af88d80a0dc5a8d1d42c5c73e018ffb0a9de0cd8a8dcbf6ddf98221d0b048e2ef2e6bdbdee53d06f3e1e508f4e171a900634d826dce47e06e8288
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Filesize
85KB
MD5b51c970cff1668ef44e358c5fc13659d
SHA1d34b379a210b201b05443a42565105f0b962f300
SHA25672bf26db6f4250309754fa9c0a374c770f7807d93c45174e90b0036f80294871
SHA51257439e0ae71af88d80a0dc5a8d1d42c5c73e018ffb0a9de0cd8a8dcbf6ddf98221d0b048e2ef2e6bdbdee53d06f3e1e508f4e171a900634d826dce47e06e8288
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Filesize
85KB
MD5b51c970cff1668ef44e358c5fc13659d
SHA1d34b379a210b201b05443a42565105f0b962f300
SHA25672bf26db6f4250309754fa9c0a374c770f7807d93c45174e90b0036f80294871
SHA51257439e0ae71af88d80a0dc5a8d1d42c5c73e018ffb0a9de0cd8a8dcbf6ddf98221d0b048e2ef2e6bdbdee53d06f3e1e508f4e171a900634d826dce47e06e8288