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220217-jxx5ascaan 1Analysis
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max time kernel
96s -
max time network
31s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
17-02-2022 18:50
Static task
static1
Behavioral task
behavioral1
Sample
important.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
important.exe
Resource
win10-en-20211208
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral3
Sample
important.exe
Resource
win10v2004-en-20220112
windows10-2004_x64
0 signatures
0 seconds
Behavioral task
behavioral4
Sample
important.exe
Resource
win11
windows11_x64
0 signatures
0 seconds
General
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Target
important.exe
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Size
3.4MB
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MD5
84c82835a5d21bbcf75a61706d8ab549
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SHA1
5ff465afaabcbf0150d1a3ab2c2e74f3a4426467
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SHA256
ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
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SHA512
90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244
Malware Config
Extracted
Path
C:\Users\Admin\AppData\Local\Temp\@[email protected]
Family
wannacry
Ransom Note
Q: What's wrong with my files?
A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted.
If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely!
Let's start decrypting!
Q: What do I do?
A: First, you need to pay service fees for the decryption.
Please send $300 worth of bitcoin to this bitcoin address: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw
Next, please find an application file named "@[email protected]". It is the decrypt software.
Run and follow the instructions! (You may need to disable your antivirus for a while.)
Q: How can I trust?
A: Don't worry about decryption.
We will decrypt your files surely because nobody will trust us if we cheat users.
* If you need our assistance, send a message by clicking <Contact Us> on the decryptor window.
�
Wallets
12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Executes dropped EXE 3 IoCs
pid Process 1072 taskdl.exe 3836 taskdl.exe 776 taskdl.exe -
Modifies extensions of user files 15 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File created C:\Users\Admin\Pictures\AssertStop.tiff.WNCRYT important.exe File renamed C:\Users\Admin\Pictures\AssertStop.tiff.WNCRYT => C:\Users\Admin\Pictures\AssertStop.tiff.WNCRY important.exe File renamed C:\Users\Admin\Pictures\CompleteConvertFrom.raw.WNCRYT => C:\Users\Admin\Pictures\CompleteConvertFrom.raw.WNCRY important.exe File opened for modification C:\Users\Admin\Pictures\HideTrace.tif.WNCRY important.exe File opened for modification C:\Users\Admin\Pictures\RequestEnable.tif.WNCRY important.exe File created C:\Users\Admin\Pictures\CompleteConvertFrom.raw.WNCRYT important.exe File created C:\Users\Admin\Pictures\HideTrace.tif.WNCRYT important.exe File renamed C:\Users\Admin\Pictures\RequestEnable.tif.WNCRYT => C:\Users\Admin\Pictures\RequestEnable.tif.WNCRY important.exe File renamed C:\Users\Admin\Pictures\CompareAdd.tiff.WNCRYT => C:\Users\Admin\Pictures\CompareAdd.tiff.WNCRY important.exe File opened for modification C:\Users\Admin\Pictures\CompleteConvertFrom.raw.WNCRY important.exe File opened for modification C:\Users\Admin\Pictures\AssertStop.tiff.WNCRY important.exe File created C:\Users\Admin\Pictures\CompareAdd.tiff.WNCRYT important.exe File opened for modification C:\Users\Admin\Pictures\CompareAdd.tiff.WNCRY important.exe File renamed C:\Users\Admin\Pictures\HideTrace.tif.WNCRYT => C:\Users\Admin\Pictures\HideTrace.tif.WNCRY important.exe File created C:\Users\Admin\Pictures\RequestEnable.tif.WNCRYT important.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD8315.tmp important.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD84B2.tmp important.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2532 icacls.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rescache\_merged\4183903823\97717462.pri taskmgr.exe File created C:\Windows\rescache\_merged\1601268389\1361672858.pri taskmgr.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 taskmgr.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString taskmgr.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2776 taskmgr.exe Token: SeSystemProfilePrivilege 2776 taskmgr.exe Token: SeCreateGlobalPrivilege 2776 taskmgr.exe -
Suspicious use of FindShellTrayWindow 31 IoCs
pid Process 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe -
Suspicious use of SendNotifyMessage 31 IoCs
pid Process 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe 2776 taskmgr.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2392 wrote to memory of 2456 2392 important.exe 69 PID 2392 wrote to memory of 2456 2392 important.exe 69 PID 2392 wrote to memory of 2456 2392 important.exe 69 PID 2392 wrote to memory of 2532 2392 important.exe 70 PID 2392 wrote to memory of 2532 2392 important.exe 70 PID 2392 wrote to memory of 2532 2392 important.exe 70 PID 2392 wrote to memory of 1072 2392 important.exe 73 PID 2392 wrote to memory of 1072 2392 important.exe 73 PID 2392 wrote to memory of 1072 2392 important.exe 73 PID 2392 wrote to memory of 1260 2392 important.exe 74 PID 2392 wrote to memory of 1260 2392 important.exe 74 PID 2392 wrote to memory of 1260 2392 important.exe 74 PID 1260 wrote to memory of 972 1260 cmd.exe 76 PID 1260 wrote to memory of 972 1260 cmd.exe 76 PID 1260 wrote to memory of 972 1260 cmd.exe 76 PID 2392 wrote to memory of 3836 2392 important.exe 78 PID 2392 wrote to memory of 3836 2392 important.exe 78 PID 2392 wrote to memory of 3836 2392 important.exe 78 PID 2392 wrote to memory of 776 2392 important.exe 83 PID 2392 wrote to memory of 776 2392 important.exe 83 PID 2392 wrote to memory of 776 2392 important.exe 83 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2456 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\important.exe"C:\Users\Admin\AppData\Local\Temp\important.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:2392 -
C:\Windows\SysWOW64\attrib.exeattrib +h .2⤵
- Views/modifies file attributes
PID:2456
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C:\Windows\SysWOW64\icacls.exeicacls . /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:2532
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C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:1072
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 246001645123897.bat2⤵
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Windows\SysWOW64\cscript.execscript.exe //nologo m.vbs3⤵PID:972
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C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:3836
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C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:776
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Drops file in Windows directory
- Checks SCSI registry key(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2776