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Analysis
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max time kernel
176s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30/10/2022, 00:22
Static task
static1
Behavioral task
behavioral1
Sample
4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe
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Size
240KB
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MD5
8467034a13779a50eeb4e3cfd54cfe2a
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SHA1
0f50504fca0c9f58c2f4e9a9f319ec00ac28a137
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SHA256
4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e
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SHA512
77f0832159e175a9a73966d79ad308eb6c97233020540f1e12b066f1f590ae8cbcee955bf00e91d7f98d365a7212dddac8af83417ec5264ec7285eac79ea3a62
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SSDEEP
3072:FkBGyT8j6VlpvBd90i/SmWKLi7CjFSivnfu3fbMdozt5czEc:Fu0UGKGkFRKfeoztO
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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" fbkief.exe -
Executes dropped EXE 1 IoCs
pid Process 2456 fbkief.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /w" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /n" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /r" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /a" 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /l" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /m" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /z" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /c" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /d" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /i" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /x" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /a" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /k" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /h" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /u" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /y" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /o" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /q" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /f" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /p" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /j" fbkief.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /g" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /e" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /b" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /s" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /t" fbkief.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbkief = "C:\\Users\\Admin\\fbkief.exe /v" fbkief.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1156 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe 1156 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe 2456 fbkief.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1156 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe 2456 fbkief.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1156 wrote to memory of 2456 1156 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe 81 PID 1156 wrote to memory of 2456 1156 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe 81 PID 1156 wrote to memory of 2456 1156 4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe"C:\Users\Admin\AppData\Local\Temp\4548de159987b7cdcaeae483501bc9b0b6f0ebcb02da07587d76b7945d86627e.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Users\Admin\fbkief.exe"C:\Users\Admin\fbkief.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:2456
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
240KB
MD5d74d3ef3c73745bb11717a9363a04340
SHA13ac074af61612eba6a0e1eb58dc2b496348cae68
SHA256d8873ca007b0070ae681ad82b8388676e7feaf5f4409611f94b642ffce3aec85
SHA512b805c0a5bddc3000f03e111069ebdcf6905b686525687252b5d21a956e2b7ace1eaf5664c5fe57393fe713a36c32b11bdb086481b1eddc355689a6c3d157c25a
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Filesize
240KB
MD5d74d3ef3c73745bb11717a9363a04340
SHA13ac074af61612eba6a0e1eb58dc2b496348cae68
SHA256d8873ca007b0070ae681ad82b8388676e7feaf5f4409611f94b642ffce3aec85
SHA512b805c0a5bddc3000f03e111069ebdcf6905b686525687252b5d21a956e2b7ace1eaf5664c5fe57393fe713a36c32b11bdb086481b1eddc355689a6c3d157c25a