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Analysis
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max time kernel
152s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07/11/2022, 20:50
Static task
static1
Behavioral task
behavioral1
Sample
871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe
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Size
288KB
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MD5
008cc9458ab5b759970218c84497f640
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SHA1
1130fcd45a6bd8479b57c8b78012351fd0799258
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SHA256
871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03
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SHA512
c47d7ffa49d32ef8bae0292884ae86aaf0e6664ba347313b058a3c1c4e03b82bf4924a5df8711704866359e36441c271affe428cb6e069962c09f226464b6fc8
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SSDEEP
3072:AU0nFShQdibOZAksTCPkix7Fe7dEN8EXgNqf5cTrWi6ei2uiTbtTmH8Fe90p06tl:709iTbYJFsE0NMCP6wJYj8t/V3
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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" zchax.exe -
Executes dropped EXE 1 IoCs
pid Process 1740 zchax.exe -
Loads dropped DLL 2 IoCs
pid Process 1752 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe 1752 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /a" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /l" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /r" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /L" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /v" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /p" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /k" zchax.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /Q" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /d" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /R" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /K" 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /K" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /V" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /G" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /T" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /c" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /F" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /t" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /W" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /E" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /j" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /P" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /J" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /U" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /n" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /e" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /w" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /u" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /Y" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /M" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /S" zchax.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /s" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /m" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /C" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /z" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /I" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /Z" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /N" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /q" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /g" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /X" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /x" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /b" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /A" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /y" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /D" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /o" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /h" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /f" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /i" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /H" zchax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zchax = "C:\\Users\\Admin\\zchax.exe /B" zchax.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 1752 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe 1740 zchax.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1752 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe 1740 zchax.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1752 wrote to memory of 1740 1752 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe 28 PID 1752 wrote to memory of 1740 1752 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe 28 PID 1752 wrote to memory of 1740 1752 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe 28 PID 1752 wrote to memory of 1740 1752 871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe"C:\Users\Admin\AppData\Local\Temp\871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Users\Admin\zchax.exe"C:\Users\Admin\zchax.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:1740
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
288KB
MD5de47c2f3e62f438b792da87036e18232
SHA192802a51e3018572630e73dcee3e945f9b1cfc25
SHA256fa54d90bd0befe350c1a36ac4af7e05c50919b29a9abeb772fe4b4696207922c
SHA512431dbb5cd63ab2c0d492a459ea9a6a9a7e879074098ae3ef428828ad72a18bdb41aa8d25d3b7f0375a39a7216113064d7f2426c53e93fef785ebd16c70cfad69
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Filesize
288KB
MD5de47c2f3e62f438b792da87036e18232
SHA192802a51e3018572630e73dcee3e945f9b1cfc25
SHA256fa54d90bd0befe350c1a36ac4af7e05c50919b29a9abeb772fe4b4696207922c
SHA512431dbb5cd63ab2c0d492a459ea9a6a9a7e879074098ae3ef428828ad72a18bdb41aa8d25d3b7f0375a39a7216113064d7f2426c53e93fef785ebd16c70cfad69
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Filesize
288KB
MD5de47c2f3e62f438b792da87036e18232
SHA192802a51e3018572630e73dcee3e945f9b1cfc25
SHA256fa54d90bd0befe350c1a36ac4af7e05c50919b29a9abeb772fe4b4696207922c
SHA512431dbb5cd63ab2c0d492a459ea9a6a9a7e879074098ae3ef428828ad72a18bdb41aa8d25d3b7f0375a39a7216113064d7f2426c53e93fef785ebd16c70cfad69
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Filesize
288KB
MD5de47c2f3e62f438b792da87036e18232
SHA192802a51e3018572630e73dcee3e945f9b1cfc25
SHA256fa54d90bd0befe350c1a36ac4af7e05c50919b29a9abeb772fe4b4696207922c
SHA512431dbb5cd63ab2c0d492a459ea9a6a9a7e879074098ae3ef428828ad72a18bdb41aa8d25d3b7f0375a39a7216113064d7f2426c53e93fef785ebd16c70cfad69