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16-03-2023 09:24
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230113-lcgmxsfh22 9Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
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submitted
13-01-2023 09:23
General
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Target
Roseland.exe
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Size
807KB
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MD5
19944159dfa94a1b75effd85e6b906dc
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SHA1
250acf87366f4c0cf91679a0e93dfc79954f0f10
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SHA256
bff12a83b1fc2e0ad0000ad9b68abc8eada559bb1094caaf5b9f52887df23705
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SHA512
c791840f59c2fc906c197c43e0e1717b9504cf46177a3688ecbd4937cdbf95349d68cc1e63649b85f02df4e6990c4df4756dd8267b062ea5271dd61fc3e508b0
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SSDEEP
12288:0Z4s3rg9u/2/oT+NXtHLlP/O+OeO+OeNhBBhhBBAtHg9rjI+LXJ0ivlzkHBDsYA7:u4s+oT+NXBLi0rjFXvyHBlbnCZa8
Malware Config
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
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Modifies extensions of user files 10 IoCs
Ransomware generally changes the extension on encrypted files.
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Drops desktop.ini file(s) 1 IoCs
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Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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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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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Suspicious behavior: EnumeratesProcesses 7 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of WriteProcessMemory 26 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Roseland.exe"C:\Users\Admin\AppData\Local\Temp\Roseland.exe"1⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\cmd.execmd /c wmic shadowcopy delete /nointeractive2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete /nointeractive3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\cmd.execmd /c vssadmin.exe Delete Shadows /All /Quiet2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet3⤵
- Interacts with shadow copies
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C:\Windows\SYSTEM32\cmd.execmd /c bcdedit /set {default} recoveryenabled No2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled No3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\SYSTEM32\cmd.execmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\SYSTEM32\cmd.execmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "$a = [System.IO.File]::ReadAllText(\"C:\GET_YOUR_FILES_BACK.txt\");Add-Type -AssemblyName System.Drawing;$filename = \"$env:temp\$(Get-Random).png\";$bmp = new-object System.Drawing.Bitmap 1920,1080;$font = new-object System.Drawing.Font Consolas,10;$brushBg = [System.Drawing.Brushes]::Black;$brushFg = [System.Drawing.Brushes]::White;$format = [System.Drawing.StringFormat]::GenericDefault;$format.Alignment = [System.Drawing.StringAlignment]::Center;$format.LineAlignment = [System.Drawing.StringAlignment]::Center;$graphics = [System.Drawing.Graphics]::FromImage($bmp);$graphics.FillRectangle($brushBg,0,0,$bmp.Width,$bmp.Height);$graphics.DrawString($a,$font,$brushFg,[System.Drawing.RectangleF]::FromLTRB(0, 0, 1920, 1080),$format);$graphics.Dispose();$bmp.Save($filename);reg add \"HKEY_CURRENT_USER\Control Panel\Desktop\" /v Wallpaper /t REG_SZ /d $filename /f;Start-Sleep 1;rundll32.exe user32.dll, UpdatePerUserSystemParameters, 0, $false;"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.exe"C:\Windows\system32\reg.exe" add "HKEY_CURRENT_USER\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\302165477.png /f3⤵
- Sets desktop wallpaper using registry
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" user32.dll UpdatePerUserSystemParameters 0 False3⤵
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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
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Downloads
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Filesize
1011B
MD56d81ed40ba0a283e5483bfe6a448e9d7
SHA10c847a5f9df743b13e1aa11b4c24a4309e9a7119
SHA256b4464f61655ca584170694bedd52c6cff2b74c18a761b33cfb1387f017d2d57d
SHA5128956415f155f24852ac672aa06cc6a8819a2a0e44a9b940f8f3390c34ebb43ff10f4635722f104a5a9a94098d3f286362f507dc49d3f048e540f48c073eaf379
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Filesize
2KB
MD56cf293cb4d80be23433eecf74ddb5503
SHA124fe4752df102c2ef492954d6b046cb5512ad408
SHA256b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8
SHA5120f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00
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Filesize
64B
MD5fb88ced2c4ccde482413852902ecd0df
SHA16ad26dfaaa606e82710ad0712d8b1c4abec1d6dd
SHA2569cc249792c1a673ae90260e40d62521948daa94b01565a1c06b403cc86e39f5b
SHA5127c1adea6f5e286712759055c3d9026260c9619b3bcb651283d342aff2fe3db16ebf5d82d1d30329169cfd8490fc86853ccc93b12a97cb071b7a74747712ff285
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Filesize
136KB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
10.8MB