Analysis
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max time kernel
146s -
max time network
120s -
platform
windows7_x64 -
resource
win7-en-20211014 -
submitted
23-11-2021 18:16
Static task
static1
Behavioral task
behavioral1
Sample
706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe
Resource
win10-en-20211014
General
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Target
706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe
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Size
79KB
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MD5
62a1b4d4b461f4eaae91c70727f71604
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SHA1
1ced9a7e62aa65faa03eb1ad2bc786e9d9b5f6c2
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SHA256
706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d
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SHA512
d14f989f5f54663c3ea63526a000e8db5d172046e37f412ed47cd31eb14db071b515b854bbb3ab3d2f41f936b6962583aaa0b3ef1236aa2506148813f66ad542
Malware Config
Extracted
C:\6amPnJyPq.README.txt
blackmatter
http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/72oJjilhMD/6d067a8741848166fa2ac1e69472280c
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/X3452I2VDTHM30QX
Signatures
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BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
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suricata: ET MALWARE BlackMatter CnC Activity
suricata: ET MALWARE BlackMatter CnC Activity
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suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
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suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (nowautomation .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (nowautomation .com)
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Modifies extensions of user files 9 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\NewWrite.tiff.6amPnJyPq 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe File renamed C:\Users\Admin\Pictures\OpenRead.raw => C:\Users\Admin\Pictures\OpenRead.raw.6amPnJyPq 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe File opened for modification C:\Users\Admin\Pictures\ResumeUninstall.png.6amPnJyPq 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe File renamed C:\Users\Admin\Pictures\NewWrite.tiff => C:\Users\Admin\Pictures\NewWrite.tiff.6amPnJyPq 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe File opened for modification C:\Users\Admin\Pictures\OpenRead.raw.6amPnJyPq 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe File renamed C:\Users\Admin\Pictures\ResumeUninstall.png => C:\Users\Admin\Pictures\ResumeUninstall.png.6amPnJyPq 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe File renamed C:\Users\Admin\Pictures\UndoProtect.raw => C:\Users\Admin\Pictures\UndoProtect.raw.6amPnJyPq 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe File opened for modification C:\Users\Admin\Pictures\UndoProtect.raw.6amPnJyPq 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe File opened for modification C:\Users\Admin\Pictures\NewWrite.tiff 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\6amPnJyPq.bmp" 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\6amPnJyPq.bmp" 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies Control Panel 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\International 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\WallpaperStyle = "10" 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe -
Modifies registry class 20 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000 splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff splwow64.exe Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}" splwow64.exe Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}" splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_Classes\Local Settings splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000 splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg splwow64.exe Set value (int) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0" splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff splwow64.exe Set value (int) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" splwow64.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1316 NOTEPAD.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeDebugPrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: 36 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeImpersonatePrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeIncBasePriorityPrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeIncreaseQuotaPrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: 33 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeManageVolumePrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeProfSingleProcessPrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeRestorePrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeSecurityPrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeSystemProfilePrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeTakeOwnershipPrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeShutdownPrivilege 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe Token: SeBackupPrivilege 1320 vssvc.exe Token: SeRestorePrivilege 1320 vssvc.exe Token: SeAuditPrivilege 1320 vssvc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1564 splwow64.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 984 wrote to memory of 1316 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 35 PID 984 wrote to memory of 1316 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 35 PID 984 wrote to memory of 1316 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 35 PID 984 wrote to memory of 1316 984 706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe 35 PID 1316 wrote to memory of 1564 1316 NOTEPAD.EXE 36 PID 1316 wrote to memory of 1564 1316 NOTEPAD.EXE 36 PID 1316 wrote to memory of 1564 1316 NOTEPAD.EXE 36 PID 1316 wrote to memory of 1564 1316 NOTEPAD.EXE 36
Processes
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C:\Users\Admin\AppData\Local\Temp\706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe"C:\Users\Admin\AppData\Local\Temp\706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:984 -
C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" /p C:\6amPnJyPq.README.txt2⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of WriteProcessMemory
PID:1316 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122883⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:1564
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1320