Analysis
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max time kernel
101s -
max time network
88s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
25/02/2023, 04:13
Static task
static1
Behavioral task
behavioral1
Sample
sample2.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
sample2.exe
Resource
win10v2004-20230220-en
General
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Target
sample2.exe
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Size
959KB
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MD5
41687e58130c8bdca248e1403e565afb
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SHA1
6eda5da62e5073a67ff89dd89b85328dd2df73d1
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SHA256
fef1f9664fde9b23754c691b15a05fdc35a51a0ceb8a18fb9a5a0166e6377c69
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SHA512
6cd670e5f14a8d6fa1b5894a89cfe514d403f3f8dc82be9c83f86345be72d218844cd3f8c1c045deae6a292796d6d280efe49c8de724abda038c522407a14cde
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SSDEEP
24576:TLjr3s2nScu1i1tz3f++5kRzFxk7rMxNeR1R9qpdAF:Pjrc2So1Ff+B3k796W
Malware Config
Extracted
C:\Program Files\Java\jdk1.7.0_80\db\Restore-My-Files.txt
http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion
https://bigblog.at
http://lockbitsup4yezcd5enk5unncx3zcy7kw6wllyqmiyhvanjj352jayid.onion
http://lockbitsap2oaqhcun3syvbqt6n5nzt7fqosc6jdlmsfleu3ka4k2did.onion
https://decoding.at
Signatures
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Lockbit
Ransomware family with multiple variants released since late 2019.
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Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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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
pid Process 2968 bcdedit.exe 2252 bcdedit.exe -
Modifies extensions of user files 3 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\StepMeasure.png => C:\users\admin\pictures\stepmeasure.png.lockbit sample2.exe File renamed C:\Users\Admin\Pictures\SubmitExpand.raw => C:\users\admin\pictures\submitexpand.raw.lockbit sample2.exe File renamed C:\Users\Admin\Pictures\UnregisterTrace.crw => C:\users\admin\pictures\unregistertrace.crw.lockbit sample2.exe -
Deletes itself 1 IoCs
pid Process 2700 cmd.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run sample2.exe Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\{6E5E24E4-E8E8-78AC-0E52-0E6D43D0CFEE} = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sample2.exe\"" sample2.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\windows\SysWOW64\FB5EDC.ico sample2.exe File created C:\Windows\system32\spool\PRINTERS\00002.SPL sample2.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8A94.tmp.bmp" sample2.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 21 IoCs
pid Process 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\program files\java\jdk1.7.0_80\lib\visualvm\platform\config\modules\org-netbeans-modules-autoupdate-cli.xml sample2.exe File opened for modification C:\program files (x86)\microsoft office\office14\groove\tooldata\groove.net\grooveforms3\bg_country.gif sample2.exe File opened for modification C:\program files (x86)\microsoft office\office14\groove\tooldata\groove.net\grooveforms3\formsstyles\lime\tab_on.gif sample2.exe File created C:\program files\java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.help_2.0.102.v20141007-2301\Restore-My-Files.txt sample2.exe File opened for modification C:\program files\java\jre7\lib\zi\pacific\pago_pago sample2.exe File opened for modification C:\program files\videolan\vlc\lua\meta\art\03_lastfm.luac sample2.exe File opened for modification C:\program files (x86)\microsoft office\clipart\pub60cor\wb01734_.gif sample2.exe File opened for modification C:\program files\dvd maker\shared\dvdstyles\specialoccasion\specialnavigationleft_selectionsubpicture.png sample2.exe File opened for modification C:\program files\java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.equinox.p2.core.feature_1.3.0.v20140523-0116\meta-inf\eclipse_.rsa sample2.exe File opened for modification C:\program files\videolan\vlc\locale\ar\lc_messages\vlc.mo sample2.exe File opened for modification C:\program files (x86)\microsoft office\office14\1033\pubftscm\scheme08.css sample2.exe File opened for modification C:\program files (x86)\windows sidebar\gadgets\currency.gadget\logo.png sample2.exe File opened for modification C:\program files (x86)\windows sidebar\gadgets\weather.gadget\images\docked_black_moon-waning-crescent.png sample2.exe File opened for modification C:\program files (x86)\microsoft office\clipart\pub60cor\j0101862.bmp sample2.exe File opened for modification C:\program files (x86)\microsoft office\media\office14\bullets\bd21344_.gif sample2.exe File opened for modification C:\program files (x86)\microsoft office\office14\1033\grooveforms5\formsstyles\sts2\tab_off.gif sample2.exe File opened for modification C:\program files\windows sidebar\gadgets\weather.gadget\images\144dpi\(144dpi)notconnectedstateicon.png sample2.exe File opened for modification C:\program files (x86)\windows sidebar\gadgets\clock.gadget\images\settings_box_divider_right.png sample2.exe File opened for modification C:\program files\dvd maker\shared\dvdstyles\huecycle\navigationup_buttongraphic.png sample2.exe File opened for modification C:\program files\dvd maker\shared\dvdstyles\layeredtitles\layers.png sample2.exe File opened for modification C:\program files\java\jdk1.7.0_80\jre\lib\zi\america\cambridge_bay sample2.exe File opened for modification C:\program files (x86)\microsoft office\clipart\pub60cor\bs00200_.wmf sample2.exe File opened for modification C:\program files (x86)\microsoft office\clipart\pub60cor\j0382962.jpg sample2.exe File opened for modification C:\program files\java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.rcp.product_5.5.0.165303\feature.xml sample2.exe File opened for modification C:\program files\java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-autoupdate-cli_zh_cn.jar sample2.exe File opened for modification C:\program files\java\jdk1.7.0_80\lib\visualvm\visualvm\modules\com-sun-tools-visualvm-profiling.jar sample2.exe File created C:\program files\videolan\vlc\locale\pt_pt\lc_messages\Restore-My-Files.txt sample2.exe File opened for modification C:\program files\videolan\vlc\lua\http\css\ui-lightness\images\ui-icons_228ef1_256x240.png sample2.exe File opened for modification C:\program files\windows sidebar\gadgets\calendar.gadget\fr-fr\js\calendar.js sample2.exe File opened for modification C:\program files\windows sidebar\gadgets\weather.gadget\images\5.png sample2.exe File opened for modification C:\program files (x86)\microsoft office\clipart\pub60cor\j0106572.wmf sample2.exe File opened for modification C:\program files (x86)\microsoft office\media\office14\autoshap\bd18239_.wmf sample2.exe File opened for modification C:\program files\dvd maker\shared\dvdstyles\pets\pets_frame-highlight.png sample2.exe File opened for modification C:\program files\java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.di.nl_zh_4.4.0.v20140623020002.jar sample2.exe File opened for modification C:\program files (x86)\adobe\reader 9.0\resource\font\zy______.pfb sample2.exe File opened for modification C:\program files\java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-swing-plaf.xml sample2.exe File created C:\program files\videolan\vlc\locale\cgg\lc_messages\Restore-My-Files.txt sample2.exe File opened for modification C:\program files (x86)\microsoft office\office14\1033\outlook.dev_col.hxt sample2.exe File opened for modification C:\program files (x86)\microsoft office\office14\groove\tooldata\groove.net\grooveforms\viewdblclick.js sample2.exe File created C:\program files (x86)\microsoft office\office14\groove\tooldata\groove.net\grooveforms3\formsstyles\biscay\Restore-My-Files.txt sample2.exe File opened for modification C:\program files (x86)\windows sidebar\gadgets\weather.gadget\images\docked_gray_foggy.png sample2.exe File opened for modification C:\program files\java\jdk1.7.0_80\jre\lib\zi\america\guyana sample2.exe File opened for modification C:\program files\windows sidebar\gadgets\weather.gadget\images\14.png sample2.exe File opened for modification C:\program files (x86)\microsoft office\clipart\pub60cor\parnt_09.mid sample2.exe File opened for modification C:\program files (x86)\microsoft office\media\office14\autoshap\bd18215_.wmf sample2.exe File created C:\program files (x86)\microsoft office\office14\1033\grooveforms5\formsstyles\graycheck\Restore-My-Files.txt sample2.exe File opened for modification C:\program files (x86)\microsoft office\stationery\1033\pinelumb.jpg sample2.exe File opened for modification C:\program files\7-zip\lang\kab.txt sample2.exe File opened for modification C:\program files (x86)\microsoft office\clipart\pub60cor\an01251_.wmf sample2.exe File opened for modification C:\program files (x86)\adobe\reader 9.0\resource\typesupport\unicode\mappings\mac\romanian.txt sample2.exe File created C:\program files (x86)\microsoft office\office14\groove\tooldata\groove.net\documentshare\Restore-My-Files.txt sample2.exe File opened for modification C:\program files (x86)\windows sidebar\gadgets\rssfeeds.gadget\de-de\css\settings.css sample2.exe File opened for modification C:\program files\java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.databinding.nl_ja_4.4.0.v20140623020002.jar sample2.exe File opened for modification C:\program files\videolan\vlc\lua\http\requests\playlist_jstree.xml sample2.exe File opened for modification C:\program files (x86)\microsoft office\media\office14\lines\bd14595_.gif sample2.exe File opened for modification C:\program files (x86)\microsoft office\office14\groove\toolbmps\logindialogbackground.jpg sample2.exe File opened for modification C:\program files (x86)\microsoft office\office14\groove\tooldata\groove.net\calendar\globebuttonimage.jpg sample2.exe File opened for modification C:\program files (x86)\microsoft office\office14\groove\tooldata\groove.net\grooveforms\menus.js sample2.exe File opened for modification C:\program files (x86)\windows sidebar\gadgets\currency.gadget\images\delete_down.png sample2.exe File opened for modification C:\program files\windows sidebar\de-de\sidebar.exe.mui sample2.exe File opened for modification C:\program files\windows sidebar\gadgets\picturepuzzle.gadget\fr-fr\css\picturepuzzle.css sample2.exe File opened for modification C:\program files (x86)\windows sidebar\gadgets\weather.gadget\images\undocked_gray_snow.png sample2.exe File opened for modification C:\program files (x86)\microsoft office\clipart\pub60cor\hh02282_.wmf sample2.exe File opened for modification C:\program files (x86)\microsoft office\media\office14\bullets\bd21297_.gif sample2.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1504 vssadmin.exe -
Modifies Control Panel 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Control Panel\Desktop\WallpaperStyle = "2" sample2.exe Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Control Panel\Desktop\TileWallpaper = "0" sample2.exe -
Modifies registry class 3 IoCs
description ioc Process Key created \Registry\Machine\Software\Classes\.lockbit sample2.exe Key created \Registry\Machine\Software\Classes\.lockbit\DefaultIcon sample2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.lockbit\DefaultIcon\ = "C:\\windows\\SysWow64\\FB5EDC.ico" sample2.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2184 PING.EXE -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe 1084 sample2.exe -
Suspicious use of AdjustPrivilegeToken 45 IoCs
description pid Process Token: SeTakeOwnershipPrivilege 1084 sample2.exe Token: SeDebugPrivilege 1084 sample2.exe Token: SeBackupPrivilege 2440 vssvc.exe Token: SeRestorePrivilege 2440 vssvc.exe Token: SeAuditPrivilege 2440 vssvc.exe Token: SeIncreaseQuotaPrivilege 2988 WMIC.exe Token: SeSecurityPrivilege 2988 WMIC.exe Token: SeTakeOwnershipPrivilege 2988 WMIC.exe Token: SeLoadDriverPrivilege 2988 WMIC.exe Token: SeSystemProfilePrivilege 2988 WMIC.exe Token: SeSystemtimePrivilege 2988 WMIC.exe Token: SeProfSingleProcessPrivilege 2988 WMIC.exe Token: SeIncBasePriorityPrivilege 2988 WMIC.exe Token: SeCreatePagefilePrivilege 2988 WMIC.exe Token: SeBackupPrivilege 2988 WMIC.exe Token: SeRestorePrivilege 2988 WMIC.exe Token: SeShutdownPrivilege 2988 WMIC.exe Token: SeDebugPrivilege 2988 WMIC.exe Token: SeSystemEnvironmentPrivilege 2988 WMIC.exe Token: SeRemoteShutdownPrivilege 2988 WMIC.exe Token: SeUndockPrivilege 2988 WMIC.exe Token: SeManageVolumePrivilege 2988 WMIC.exe Token: 33 2988 WMIC.exe Token: 34 2988 WMIC.exe Token: 35 2988 WMIC.exe Token: SeIncreaseQuotaPrivilege 2988 WMIC.exe Token: SeSecurityPrivilege 2988 WMIC.exe Token: SeTakeOwnershipPrivilege 2988 WMIC.exe Token: SeLoadDriverPrivilege 2988 WMIC.exe Token: SeSystemProfilePrivilege 2988 WMIC.exe Token: SeSystemtimePrivilege 2988 WMIC.exe Token: SeProfSingleProcessPrivilege 2988 WMIC.exe Token: SeIncBasePriorityPrivilege 2988 WMIC.exe Token: SeCreatePagefilePrivilege 2988 WMIC.exe Token: SeBackupPrivilege 2988 WMIC.exe Token: SeRestorePrivilege 2988 WMIC.exe Token: SeShutdownPrivilege 2988 WMIC.exe Token: SeDebugPrivilege 2988 WMIC.exe Token: SeSystemEnvironmentPrivilege 2988 WMIC.exe Token: SeRemoteShutdownPrivilege 2988 WMIC.exe Token: SeUndockPrivilege 2988 WMIC.exe Token: SeManageVolumePrivilege 2988 WMIC.exe Token: 33 2988 WMIC.exe Token: 34 2988 WMIC.exe Token: 35 2988 WMIC.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 1084 wrote to memory of 652 1084 sample2.exe 29 PID 1084 wrote to memory of 652 1084 sample2.exe 29 PID 1084 wrote to memory of 652 1084 sample2.exe 29 PID 1084 wrote to memory of 652 1084 sample2.exe 29 PID 652 wrote to memory of 1504 652 cmd.exe 31 PID 652 wrote to memory of 1504 652 cmd.exe 31 PID 652 wrote to memory of 1504 652 cmd.exe 31 PID 652 wrote to memory of 2988 652 cmd.exe 34 PID 652 wrote to memory of 2988 652 cmd.exe 34 PID 652 wrote to memory of 2988 652 cmd.exe 34 PID 652 wrote to memory of 2968 652 cmd.exe 36 PID 652 wrote to memory of 2968 652 cmd.exe 36 PID 652 wrote to memory of 2968 652 cmd.exe 36 PID 652 wrote to memory of 2252 652 cmd.exe 37 PID 652 wrote to memory of 2252 652 cmd.exe 37 PID 652 wrote to memory of 2252 652 cmd.exe 37 PID 1084 wrote to memory of 2700 1084 sample2.exe 39 PID 1084 wrote to memory of 2700 1084 sample2.exe 39 PID 1084 wrote to memory of 2700 1084 sample2.exe 39 PID 1084 wrote to memory of 2700 1084 sample2.exe 39 PID 2700 wrote to memory of 2184 2700 cmd.exe 41 PID 2700 wrote to memory of 2184 2700 cmd.exe 41 PID 2700 wrote to memory of 2184 2700 cmd.exe 41 PID 2700 wrote to memory of 2184 2700 cmd.exe 41 PID 2700 wrote to memory of 1660 2700 cmd.exe 42 PID 2700 wrote to memory of 1660 2700 cmd.exe 42 PID 2700 wrote to memory of 1660 2700 cmd.exe 42 PID 2700 wrote to memory of 1660 2700 cmd.exe 42 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\sample2.exe"C:\Users\Admin\AppData\Local\Temp\sample2.exe"1⤵
- Modifies extensions of user files
- Adds Run key to start application
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1084 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no2⤵
- Suspicious use of WriteProcessMemory
PID:652 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1504
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2988
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
PID:2968
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
PID:2252
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 127.0.0.7 -n 3 > Nul & fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\sample2.exe" & Del /f /q "C:\Users\Admin\AppData\Local\Temp\sample2.exe"2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:2700 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.7 -n 33⤵
- Runs ping.exe
PID:2184
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C:\Windows\SysWOW64\fsutil.exefsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\sample2.exe"3⤵PID:1660
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2440
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
512B
MD5c277d4f0f5a29743f11cc2837aeec596
SHA1460b1a86c9cb59e39b01a83d416e3e1aa5f736e8
SHA2566de37d0b1a58e910e90654d4c06c14620d50bb2e5136a6963589c6446dfbb060
SHA512887b295dd1b6712fe11d1eafe3a0b69a5158a0cb0a358c4d059189b9bc221b8a700674123be45989320bde970d11a38d2a022f957e1581984ecce2de6f21836f