Analysis
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max time kernel
156s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20/10/2022, 22:43
Static task
static1
Behavioral task
behavioral1
Sample
2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe
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Size
248KB
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MD5
6a7836e7c73d3f27b8fe2a66cde9b982
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SHA1
1d34d33dd16ffa656ae842453cc9c929f73bde3d
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SHA256
2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d
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SHA512
37255b702cf11c5678c5722cb156d9b5a739e3aa33a92902d1f185964ae5ae45bae72b1e67faf0ee540b7ed55202cee785d8fbf501bcdff06477bf4b5cf08e88
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SSDEEP
6144:toULTn7wfoEBRwwCQeqG6dQ+hP3v/eO2mbW0MtYN3fdhpUHvNlbapUutj:tUVBRYlL6dnhP3v/eO2mbW0MtYN3fdhP
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" 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" reojac.exe -
Executes dropped EXE 1 IoCs
pid Process 4928 reojac.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 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /E" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /p" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /z" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /P" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /R" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /Y" 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /j" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /W" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /Y" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /Z" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /U" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /a" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /t" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /k" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /G" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /b" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /J" reojac.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /f" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /I" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /o" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /h" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /B" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /Q" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /O" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /A" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /i" reojac.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /M" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /l" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /n" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /w" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /d" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /H" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /x" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /q" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /V" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /X" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /e" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /F" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /v" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /m" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /r" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /y" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /L" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /c" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /s" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /S" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /D" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /K" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /u" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /N" reojac.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reojac = "C:\\Users\\Admin\\reojac.exe /g" reojac.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 2296 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe 2296 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe 4928 reojac.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2296 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe 4928 reojac.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2296 wrote to memory of 4928 2296 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe 80 PID 2296 wrote to memory of 4928 2296 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe 80 PID 2296 wrote to memory of 4928 2296 2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.exe"C:\Users\Admin\AppData\Local\Temp\2e71bb5bdadccefa65bae2dd4baa571540520b6655014c23a4b8675214793a1d.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:2296 -
C:\Users\Admin\reojac.exe"C:\Users\Admin\reojac.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:4928
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
248KB
MD5513b6e36607534a60321008bb2427733
SHA11c6c5dfcd1a7bb43dea15a571152ccd4d3507aa7
SHA256707870a8fd935fdcd82a796bf5a02fc6bbeffea1d5a47540efa613f7f26e3b7d
SHA51288fcdf0b69bdf6ea4ef363cbe88aa842f8d997d02bd30ff1c59587fe95df556ef6b864e74f12b1ac909313e1f39f0c72c2626f822a852a872631325fe9c6db65
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Filesize
248KB
MD5513b6e36607534a60321008bb2427733
SHA11c6c5dfcd1a7bb43dea15a571152ccd4d3507aa7
SHA256707870a8fd935fdcd82a796bf5a02fc6bbeffea1d5a47540efa613f7f26e3b7d
SHA51288fcdf0b69bdf6ea4ef363cbe88aa842f8d997d02bd30ff1c59587fe95df556ef6b864e74f12b1ac909313e1f39f0c72c2626f822a852a872631325fe9c6db65