Analysis
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max time kernel
119s -
max time network
124s -
platform
windows10_x64 -
resource
win10-en-20211104 -
submitted
01-12-2021 15:31
Static task
static1
Behavioral task
behavioral1
Sample
cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe
Resource
win7-en-20211104
Behavioral task
behavioral2
Sample
cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe
Resource
win10-en-20211104
General
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Target
cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe
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Size
1.3MB
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MD5
da3ab4d40944c077f92e52d2c1de8fca
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SHA1
6676ef8826b9e5419958761f3a71464105290288
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SHA256
cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7
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SHA512
1dcc1259105c730fff76e518d7d57bce8cacacfebc05cf7b3294ccdbf8286635bfe43532f7a19507d3fd42973429f2c9335d031cbd473b356cba1bab79ce318a
Malware Config
Extracted
C:\eeWDzMyD5.README.txt
blackmatter
http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/8ZHJ2G2FJDX9JSHTA6S
Extracted
blackmatter
1.4
caa0d21adc7bdc4dc424497512a8f37d
https://paymenthacks.com
http://paymenthacks.com
https://mojobiden.com
http://mojobiden.com
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attempt_auth
false
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create_mutex
true
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encrypt_network_shares
true
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exfiltrate
true
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mount_volumes
true
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 (paymenthacks .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (paymenthacks .com)
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Modifies extensions of user files 18 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\ResolveComplete.tiff.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File renamed C:\Users\Admin\Pictures\ResumeDismount.png => C:\Users\Admin\Pictures\ResumeDismount.png.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File opened for modification C:\Users\Admin\Pictures\ResumeDismount.png.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File opened for modification C:\Users\Admin\Pictures\UnlockConfirm.crw.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File opened for modification C:\Users\Admin\Pictures\DismountInitialize.tif.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File opened for modification C:\Users\Admin\Pictures\ExpandUnlock.png.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File opened for modification C:\Users\Admin\Pictures\LimitConvertFrom.raw.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File renamed C:\Users\Admin\Pictures\PingFormat.raw => C:\Users\Admin\Pictures\PingFormat.raw.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File opened for modification C:\Users\Admin\Pictures\ResolveComplete.tiff cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File renamed C:\Users\Admin\Pictures\ResolveComplete.tiff => C:\Users\Admin\Pictures\ResolveComplete.tiff.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File renamed C:\Users\Admin\Pictures\UnlockConfirm.crw => C:\Users\Admin\Pictures\UnlockConfirm.crw.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File opened for modification C:\Users\Admin\Pictures\CloseBlock.tiff cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File renamed C:\Users\Admin\Pictures\CloseBlock.tiff => C:\Users\Admin\Pictures\CloseBlock.tiff.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File opened for modification C:\Users\Admin\Pictures\CloseBlock.tiff.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File renamed C:\Users\Admin\Pictures\DismountInitialize.tif => C:\Users\Admin\Pictures\DismountInitialize.tif.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File renamed C:\Users\Admin\Pictures\ExpandUnlock.png => C:\Users\Admin\Pictures\ExpandUnlock.png.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File renamed C:\Users\Admin\Pictures\LimitConvertFrom.raw => C:\Users\Admin\Pictures\LimitConvertFrom.raw.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe File opened for modification C:\Users\Admin\Pictures\PingFormat.raw.eeWDzMyD5 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe -
Loads dropped DLL 1 IoCs
pid Process 3772 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\Z: cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\eeWDzMyD5.bmp" cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\eeWDzMyD5.bmp" cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3772 set thread context of 4080 3772 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 68 -
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-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\International cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\WallpaperStyle = "10" cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe -
Modifies registry class 21 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0 NOTEPAD.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202 NOTEPAD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\NodeSlot = "2" NOTEPAD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance NOTEPAD.EXE Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Set value (data) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 0100000000000000ffffffff NOTEPAD.EXE Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags NOTEPAD.EXE Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 NOTEPAD.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 NOTEPAD.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\MRUListEx = 00000000ffffffff NOTEPAD.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\MRUListEx = ffffffff NOTEPAD.EXE Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2 NOTEPAD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell\SniffedFolderType = "Documents" NOTEPAD.EXE Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell NOTEPAD.EXE Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU NOTEPAD.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 NOTEPAD.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff NOTEPAD.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0 = 14002e80922b16d365937a46956b92703aca08af0000 NOTEPAD.EXE Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell NOTEPAD.EXE Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance NOTEPAD.EXE Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings NOTEPAD.EXE -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2028 NOTEPAD.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3772 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeDebugPrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: 36 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeImpersonatePrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeIncBasePriorityPrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeIncreaseQuotaPrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: 33 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeManageVolumePrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeProfSingleProcessPrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeRestorePrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeSecurityPrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeSystemProfilePrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeTakeOwnershipPrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeShutdownPrivilege 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe Token: SeBackupPrivilege 3936 vssvc.exe Token: SeRestorePrivilege 3936 vssvc.exe Token: SeAuditPrivilege 3936 vssvc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2028 NOTEPAD.EXE -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3772 wrote to memory of 4080 3772 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 68 PID 3772 wrote to memory of 4080 3772 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 68 PID 3772 wrote to memory of 4080 3772 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 68 PID 3772 wrote to memory of 4080 3772 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 68 PID 4080 wrote to memory of 2028 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 75 PID 4080 wrote to memory of 2028 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 75 PID 4080 wrote to memory of 2028 4080 cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe 75 PID 2028 wrote to memory of 3460 2028 NOTEPAD.EXE 76 PID 2028 wrote to memory of 3460 2028 NOTEPAD.EXE 76
Processes
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C:\Users\Admin\AppData\Local\Temp\cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe"C:\Users\Admin\AppData\Local\Temp\cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3772 -
C:\Users\Admin\AppData\Local\Temp\cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe"C:\Users\Admin\AppData\Local\Temp\cf60d0d6b05bfe2e51ca9dac01a4ae506b90d78d8d9d0fc266e3c01d8d2ba6b7.exe"2⤵
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080 -
C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" /p C:\eeWDzMyD5.README.txt3⤵
- Modifies registry class
- Opens file in notepad (likely ransom note)
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122884⤵PID:3460
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3936