Analysis
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max time kernel
46s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01/10/2022, 10:54
Static task
static1
Behavioral task
behavioral1
Sample
eng-3.vtt
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
eng-3.vtt
Resource
win10v2004-20220901-en
windows10-2004-x64
3 signatures
150 seconds
General
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Target
eng-3.vtt
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Size
25KB
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MD5
aca8ac032298287914d29a537d15db77
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SHA1
9a464492ee54efbe8cd5a616ad2b5f11ff7a60ca
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SHA256
2b1af35dcf3b44496101c6170f7b96ca32034f3b3712f8f0b2e4535fdb7062b1
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SHA512
576f019d7bb4e4b082e68fd6ac158e2519e5b25d4923f789e346f3159f848df99e6744b90001d7ac2614e45525f27e019c71cd5311c63e8f88026e3fd093ff81
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SSDEEP
768:hIbbbuY7KexwIYJ5d/upgCtqqVnlUF5X1pX6JHs4etf:8vPWStqp24
Score
3/10
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier firefox.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature firefox.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\vtt_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\vtt_auto_file\shell\open\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\vtt_auto_file\shell\open\command\ = "\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\" -osint -url \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings firefox.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\vtt_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.vtt\ = "vtt_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\vtt_auto_file\shell\open rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\vtt_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.vtt rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1336 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1608 firefox.exe Token: SeDebugPrivilege 1608 firefox.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 1608 firefox.exe 1608 firefox.exe 1608 firefox.exe 1608 firefox.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 1608 firefox.exe 1608 firefox.exe 1608 firefox.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1764 wrote to memory of 1336 1764 cmd.exe 29 PID 1764 wrote to memory of 1336 1764 cmd.exe 29 PID 1764 wrote to memory of 1336 1764 cmd.exe 29 PID 1336 wrote to memory of 1772 1336 rundll32.exe 30 PID 1336 wrote to memory of 1772 1336 rundll32.exe 30 PID 1336 wrote to memory of 1772 1336 rundll32.exe 30 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1772 wrote to memory of 1608 1772 firefox.exe 31 PID 1608 wrote to memory of 1388 1608 firefox.exe 34 PID 1608 wrote to memory of 1388 1608 firefox.exe 34 PID 1608 wrote to memory of 1388 1608 firefox.exe 34 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1596 1608 firefox.exe 35 PID 1608 wrote to memory of 1724 1608 firefox.exe 36
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\eng-3.vtt1⤵
- Suspicious use of WriteProcessMemory
PID:1764 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\eng-3.vtt2⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1336 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "C:\Users\Admin\AppData\Local\Temp\eng-3.vtt"3⤵
- Suspicious use of WriteProcessMemory
PID:1772 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -url C:\Users\Admin\AppData\Local\Temp\eng-3.vtt4⤵
- Checks processor information in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1608 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1608.0.1687139101\756810168" -parentBuildID 20200403170909 -prefsHandle 1196 -prefMapHandle 1188 -prefsLen 1 -prefMapSize 220106 -appdir "C:\Program Files\Mozilla Firefox\browser" - 1608 "\\.\pipe\gecko-crash-server-pipe.1608" 1240 gpu5⤵PID:1388
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1608.3.1257586750\318282428" -childID 1 -isForBrowser -prefsHandle 1664 -prefMapHandle 1100 -prefsLen 156 -prefMapSize 220106 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 1608 "\\.\pipe\gecko-crash-server-pipe.1608" 1104 tab5⤵PID:1596
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1608.13.939873713\2032759176" -childID 2 -isForBrowser -prefsHandle 2680 -prefMapHandle 2676 -prefsLen 6938 -prefMapSize 220106 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 1608 "\\.\pipe\gecko-crash-server-pipe.1608" 2692 tab5⤵PID:1724
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1608.20.109736161\1590818418" -childID 3 -isForBrowser -prefsHandle 3232 -prefMapHandle 3236 -prefsLen 7643 -prefMapSize 220106 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 1608 "\\.\pipe\gecko-crash-server-pipe.1608" 3204 tab5⤵PID:2148
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