Analysis
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max time kernel
1200s -
max time network
839s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
22-11-2024 02:43
General
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Target
98aadc95c589e064a542802bbf0ef01ef00595c34d195f1a1e6443909846d2e7.exe
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Size
151KB
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MD5
993135dacbff2607839ee5a76ca06c61
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SHA1
c1a9a8cdad293887214605ca0e47f3ddfa4e1a52
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SHA256
98aadc95c589e064a542802bbf0ef01ef00595c34d195f1a1e6443909846d2e7
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SHA512
69472dc86d5d3c44742b209fb0a57ab3afd8f93d0c5adfdcd48c2e4828828309101fcb9500813044712b1bc3e85e6a2ad3e5dde5f3818fb8772f0ff5d0b873ea
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SSDEEP
3072:aMAr2Q8LH/r1GgDwheOj9Pm4uX2QZJiU8ypfoAWe:aMAaQ0D1VDwheuhJmJiU8y90
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\How to restore files.hta
class="mark">[email protected]</span>.In
Signatures
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Renames multiple (4603) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 6 IoCs
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Reads user/profile data of web browsers 3 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 3 IoCs
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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UPX packed file 44 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Drops file in Program Files directory 64 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 10 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Kills process with taskkill 1 IoCs
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Modifies Control Panel 3 IoCs
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Modifies Internet Explorer settings 1 TTPs 4 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 36 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\98aadc95c589e064a542802bbf0ef01ef00595c34d195f1a1e6443909846d2e7.exe"C:\Users\Admin\AppData\Local\Temp\98aadc95c589e064a542802bbf0ef01ef00595c34d195f1a1e6443909846d2e7.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\msiscan.exe"C:\Users\Admin\AppData\Local\msiscan.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mshta.exemshta.exe "javascript:o=new ActiveXObject('WScript.Shell');setInterval(function(){try{o.RegWrite('HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\RunOnce\\{7EE83558-92B4-4741-8714-1DE414DEA489}','C:\\Users\\Admin\\AppData\\Local\\msiscan.exe');}catch(e){}},10);"3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exemshta.exe "C:\Users\Admin\How to restore files.hta"3⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
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C:\Users\Admin\AppData\Local\Temp\~wtmp001.exeC:\Users\Admin\AppData\Local\Temp\~wtmp001.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\wmon.exe"C:\Users\Admin\AppData\Local\wmon.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mshta.exemshta.exe "javascript:o=new ActiveXObject('WScript.Shell');setInterval(function(){try{o.RegWrite('HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\RunOnce\\wmon','C:\\Users\\Admin\\AppData\\Local\\wmon.exe');}catch(e){}},10);"5⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exemshta.exe "javascript:o=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{o.DeleteFile('C:\\Users\\Admin\\AppData\\Local\\Temp\\~wtmp001.exe');close()}catch(e){}},10);"4⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C taskkill /PID 2620 /F3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /PID 2620 /F4⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
405KB
MD562b8f4566bf68bab6db8d110ddb0cef6
SHA156812afca274e27bdb22d6a59f0e8dfddd585c17
SHA2563cf6e420e9251f1505d1b999d981f488c4f7aa83e9c4ae360026cc9ee62c003a
SHA51275dd30956cd45c47d1b0f2e06d94d577830cadd7420748d8e389725cf43e17d597ae3b1ae2e0ab01e8924cec36ce24500f24fa34dcc94140798f5f6d931c0d3a
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Filesize
4KB
MD5501901da96ea73075c3cb2ce15f97d6d
SHA11bf1cc4f8739e59505b97762b95bc2d589fd015a
SHA256ac1059b9d881d5e66934fb4e1d1d625647b30559e9694e963633935408a00221
SHA51253e9b0bb3556aa96b2f3d47423e2f414e0c767c05fab8d0e6b68ee932443bfbfde317307d1da846655cded63e1bb94281c5a41978ff64d0e8cf1c226db7bf8d1
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Filesize
26KB
MD50f619a859872cee5c1fac8594f2ce9ad
SHA1fae9e83196477b9fa770916026427c6e0a4438be
SHA256866a90a9f3db2fde0311fdd46e69f54cf761c845e06ab73468ede4fe466ce2bd
SHA512cb612d9d0b2c7ecca4379146076bd90d0ad374fea65e622883386455ef388d7957d48c537d3b0c0b4b965c99c3277bd6edfd11cf8cb5aedb460903e8956c5104
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Filesize
151KB
MD5993135dacbff2607839ee5a76ca06c61
SHA1c1a9a8cdad293887214605ca0e47f3ddfa4e1a52
SHA25698aadc95c589e064a542802bbf0ef01ef00595c34d195f1a1e6443909846d2e7
SHA51269472dc86d5d3c44742b209fb0a57ab3afd8f93d0c5adfdcd48c2e4828828309101fcb9500813044712b1bc3e85e6a2ad3e5dde5f3818fb8772f0ff5d0b873ea
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Filesize
52KB
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Filesize
52KB
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Filesize
52KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB
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Filesize
300KB