Resubmissions
20-09-2020 09:53
200920-9rh6v6y6ga 1020-09-2020 09:09
200920-94a3wvdaln 1020-09-2020 07:26
200920-gyqrj2hcqj 1020-09-2020 07:11
200920-xak2q5j4ha 10Analysis
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max time kernel
301s -
max time network
303s -
platform
windows7_x64 -
resource
win7v200722 -
submitted
20-09-2020 09:09
General
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Target
ioxyfx.dat.exe
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Size
7.1MB
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MD5
d5f9fa1a8dca5319432f51a5891f7794
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SHA1
2a937328f5b99eccb9b8c13ed71d6ffb9dff4521
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SHA256
18f4123ee42f5a29f8df7bd1cf95ab73441f082584f390aa218c2dd1134f4055
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SHA512
87013b63a9b153c5268784928394dfbf1eeff1b91eea6bdf187025e63d25c535e468e59a33f47d23682a386605bb314311e50a7edd1d6deb1b60f5008237a7d0
Malware Config
Signatures
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Deletes Windows Defender Definitions 2 TTPs 1 IoCs
Uses mpcmdrun utility to delete all AV definitions.
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Zhen Executable 6 IoCs
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Zhen Ransomware
First seen in September 2020. Drops ransomnote as .ini file.
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Executes dropped EXE 2 IoCs
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Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
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Possible privilege escalation attempt 2 IoCs
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Loads dropped DLL 13 IoCs
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Modifies file permissions 1 TTPs 2 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
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Drops file in Program Files directory 64 IoCs
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Drops file in Windows directory 1 IoCs
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Detects Pyinstaller 6 IoCs
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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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Program crash 1 IoCs
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Kills process with taskkill 7 IoCs
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Modifies Control Panel 4 IoCs
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Modifies data under HKEY_USERS 17 IoCs
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Modifies registry class 64 IoCs
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Suspicious behavior: EnumeratesProcesses 18 IoCs
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Suspicious use of AdjustPrivilegeToken 12 IoCs
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Suspicious use of SetWindowsHookEx 2 IoCs
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Suspicious use of WriteProcessMemory 51 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\ioxyfx.dat.exe"C:\Users\Admin\AppData\Local\Temp\ioxyfx.dat.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\ProgramData\ioxyfx.dat.exeC:\ProgramData\ioxyfx.dat.exe2⤵
- Executes dropped EXE
- Modifies extensions of user files
- Loads dropped DLL
- Adds Run key to start application
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies Control Panel
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM MSExchange*3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM Microsoft*3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM ora*3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM tns*3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM mysql*3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM sql*3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM postgres*3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\takeown.exe"C:\Windows\System32\takeown.exe" /F C:\Windows\Web\Wallpaper\Windows\img0.jpg3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\icacls.exe"C:\Windows\System32\icacls.exe" C:\Windows\Web\Wallpaper\Windows\img0.jpg /grant Users:F3⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Program Files\Windows Defender\mpcmdrun.exe"C:\Program Files\Windows Defender\mpcmdrun.exe" -removedefinitions -all3⤵
- Deletes Windows Defender Definitions
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C:\ProgramData\x64.exeC:\ProgramData\x64.exe 04298718c4ed4c0a282605560f30b8f0::72a50cf6d7d1042c8b2514f9768fa499 cfad00e8748eaea::7e9372bd97ed3aec6 25427320e7f946c9::7c3a5807a37a26a9 39d6c0440ea63b::33854dce8ddd35e877 exit3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 208 -s 5564⤵
- Loads dropped DLL
- Program crash
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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MD5
d5f9fa1a8dca5319432f51a5891f7794
SHA12a937328f5b99eccb9b8c13ed71d6ffb9dff4521
SHA25618f4123ee42f5a29f8df7bd1cf95ab73441f082584f390aa218c2dd1134f4055
SHA51287013b63a9b153c5268784928394dfbf1eeff1b91eea6bdf187025e63d25c535e468e59a33f47d23682a386605bb314311e50a7edd1d6deb1b60f5008237a7d0
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MD5
d5f9fa1a8dca5319432f51a5891f7794
SHA12a937328f5b99eccb9b8c13ed71d6ffb9dff4521
SHA25618f4123ee42f5a29f8df7bd1cf95ab73441f082584f390aa218c2dd1134f4055
SHA51287013b63a9b153c5268784928394dfbf1eeff1b91eea6bdf187025e63d25c535e468e59a33f47d23682a386605bb314311e50a7edd1d6deb1b60f5008237a7d0
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MD5
1fc80528461d08dad2d9f234fa971add
SHA11c45209056da5f783cd707e7002597a31befb1c0
SHA25617f606594427c58ff6cdf1270f83aa2595e9168b6cc1618665a1548650a40637
SHA5120a71fd620ac01b031a240450a01af3ce592a228dbfcc74136a680946e36753e5107e8d45bc382baa3f5f30985321f1179fae504e59d13d8f469705b124b96156
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MD5
1fc80528461d08dad2d9f234fa971add
SHA11c45209056da5f783cd707e7002597a31befb1c0
SHA25617f606594427c58ff6cdf1270f83aa2595e9168b6cc1618665a1548650a40637
SHA5120a71fd620ac01b031a240450a01af3ce592a228dbfcc74136a680946e36753e5107e8d45bc382baa3f5f30985321f1179fae504e59d13d8f469705b124b96156
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MD5
9484c04258830aa3c2f2a70eb041414c
SHA1b242a4fb0e9dcf14cb51dc36027baff9a79cb823
SHA256bf7e47c16d7e1c0e88534f4ef95e09d0fd821ed1a06b0d95a389b35364b63ff5
SHA5129d0e9f0d88594746ba41ea4a61a53498619eda596e12d8ec37d01cfe8ceb08be13e3727c83d630a6d9e6d03066f62444bb94ea5a0d2ed9d21a270e612db532a0
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MD5
9484c04258830aa3c2f2a70eb041414c
SHA1b242a4fb0e9dcf14cb51dc36027baff9a79cb823
SHA256bf7e47c16d7e1c0e88534f4ef95e09d0fd821ed1a06b0d95a389b35364b63ff5
SHA5129d0e9f0d88594746ba41ea4a61a53498619eda596e12d8ec37d01cfe8ceb08be13e3727c83d630a6d9e6d03066f62444bb94ea5a0d2ed9d21a270e612db532a0
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MD5
9484c04258830aa3c2f2a70eb041414c
SHA1b242a4fb0e9dcf14cb51dc36027baff9a79cb823
SHA256bf7e47c16d7e1c0e88534f4ef95e09d0fd821ed1a06b0d95a389b35364b63ff5
SHA5129d0e9f0d88594746ba41ea4a61a53498619eda596e12d8ec37d01cfe8ceb08be13e3727c83d630a6d9e6d03066f62444bb94ea5a0d2ed9d21a270e612db532a0
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MD5
9484c04258830aa3c2f2a70eb041414c
SHA1b242a4fb0e9dcf14cb51dc36027baff9a79cb823
SHA256bf7e47c16d7e1c0e88534f4ef95e09d0fd821ed1a06b0d95a389b35364b63ff5
SHA5129d0e9f0d88594746ba41ea4a61a53498619eda596e12d8ec37d01cfe8ceb08be13e3727c83d630a6d9e6d03066f62444bb94ea5a0d2ed9d21a270e612db532a0
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MD5
d5f9fa1a8dca5319432f51a5891f7794
SHA12a937328f5b99eccb9b8c13ed71d6ffb9dff4521
SHA25618f4123ee42f5a29f8df7bd1cf95ab73441f082584f390aa218c2dd1134f4055
SHA51287013b63a9b153c5268784928394dfbf1eeff1b91eea6bdf187025e63d25c535e468e59a33f47d23682a386605bb314311e50a7edd1d6deb1b60f5008237a7d0
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MD5
d5f9fa1a8dca5319432f51a5891f7794
SHA12a937328f5b99eccb9b8c13ed71d6ffb9dff4521
SHA25618f4123ee42f5a29f8df7bd1cf95ab73441f082584f390aa218c2dd1134f4055
SHA51287013b63a9b153c5268784928394dfbf1eeff1b91eea6bdf187025e63d25c535e468e59a33f47d23682a386605bb314311e50a7edd1d6deb1b60f5008237a7d0
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MD5
d5f9fa1a8dca5319432f51a5891f7794
SHA12a937328f5b99eccb9b8c13ed71d6ffb9dff4521
SHA25618f4123ee42f5a29f8df7bd1cf95ab73441f082584f390aa218c2dd1134f4055
SHA51287013b63a9b153c5268784928394dfbf1eeff1b91eea6bdf187025e63d25c535e468e59a33f47d23682a386605bb314311e50a7edd1d6deb1b60f5008237a7d0
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MD5
d5f9fa1a8dca5319432f51a5891f7794
SHA12a937328f5b99eccb9b8c13ed71d6ffb9dff4521
SHA25618f4123ee42f5a29f8df7bd1cf95ab73441f082584f390aa218c2dd1134f4055
SHA51287013b63a9b153c5268784928394dfbf1eeff1b91eea6bdf187025e63d25c535e468e59a33f47d23682a386605bb314311e50a7edd1d6deb1b60f5008237a7d0
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MD5
1fc80528461d08dad2d9f234fa971add
SHA11c45209056da5f783cd707e7002597a31befb1c0
SHA25617f606594427c58ff6cdf1270f83aa2595e9168b6cc1618665a1548650a40637
SHA5120a71fd620ac01b031a240450a01af3ce592a228dbfcc74136a680946e36753e5107e8d45bc382baa3f5f30985321f1179fae504e59d13d8f469705b124b96156
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MD5
1fc80528461d08dad2d9f234fa971add
SHA11c45209056da5f783cd707e7002597a31befb1c0
SHA25617f606594427c58ff6cdf1270f83aa2595e9168b6cc1618665a1548650a40637
SHA5120a71fd620ac01b031a240450a01af3ce592a228dbfcc74136a680946e36753e5107e8d45bc382baa3f5f30985321f1179fae504e59d13d8f469705b124b96156
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MD5
1fc80528461d08dad2d9f234fa971add
SHA11c45209056da5f783cd707e7002597a31befb1c0
SHA25617f606594427c58ff6cdf1270f83aa2595e9168b6cc1618665a1548650a40637
SHA5120a71fd620ac01b031a240450a01af3ce592a228dbfcc74136a680946e36753e5107e8d45bc382baa3f5f30985321f1179fae504e59d13d8f469705b124b96156
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MD5
1fc80528461d08dad2d9f234fa971add
SHA11c45209056da5f783cd707e7002597a31befb1c0
SHA25617f606594427c58ff6cdf1270f83aa2595e9168b6cc1618665a1548650a40637
SHA5120a71fd620ac01b031a240450a01af3ce592a228dbfcc74136a680946e36753e5107e8d45bc382baa3f5f30985321f1179fae504e59d13d8f469705b124b96156
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MD5
1fc80528461d08dad2d9f234fa971add
SHA11c45209056da5f783cd707e7002597a31befb1c0
SHA25617f606594427c58ff6cdf1270f83aa2595e9168b6cc1618665a1548650a40637
SHA5120a71fd620ac01b031a240450a01af3ce592a228dbfcc74136a680946e36753e5107e8d45bc382baa3f5f30985321f1179fae504e59d13d8f469705b124b96156
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Filesize
68KB
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Filesize
68KB
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