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Overview

overview

10

Static

static

SATURN_RANSOM.bin.exe

windows7_x64

10

SATURN_RANSOM.bin.exe

windows10_x64

9

Analysis

  • max time kernel
    111s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    04/11/2020, 02:35

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General

  • Target

    SATURN_RANSOM.bin.exe

  • Size

    338KB

  • MD5

    bbd4c2d2c72648c8f871b36261be23fd

  • SHA1

    77c525e6b8a5760823ad6036e60b3fa244db8e42

  • SHA256

    9e87f069de22ceac029a4ac56e6305d2df54227e6b0f0b3ecad52a01fbade021

  • SHA512

    38f2ff3b7ff6faa63ef0a3200e0dbb9e48e1d404a065f6919cb6d245699479896a42316f299c33c8cc068922934c64f8aa06c88b000d1676870c1d0c0f18e14a

Score
10/10
ursnif_rm3bankerevasionpersistenceransomwarespywaretrojan

Malware Config

Signatures

  • Ursnif RM3

    A heavily modified version of Ursnif discovered in the wild.

    bankertrojanursnif_rm3
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Enumerates VirtualBox registry keys 2 TTPs
    evasion
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Modifies extensions of user files 20 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Modifies service 2 TTPs 4 IoCs
    persistence
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
    adwarespyware
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SATURN_RANSOM.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\SATURN_RANSOM.bin.exe"
    1⤵
    • Modifies extensions of user files
    • Checks BIOS information in registry
    • Drops startup file
    • Sets desktop wallpaper using registry
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C vssadmin.exe delete shadows /all /quiet & wmic.exe shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1092
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1980
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic.exe shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1776
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\#DECRYPT_MY_FILES#.txt
      2⤵
        PID:440
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\Desktop\#DECRYPT_MY_FILES#.vbs"
        2⤵
          PID:1136
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\#DECRYPT_MY_FILES#.html
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1592
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1592 CREDAT:275457 /prefetch:2
            3⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1752
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\SATURN_RANSOM.bin.exe"
          2⤵
          • Deletes itself
          • Suspicious use of WriteProcessMemory
          PID:1388
          • C:\Windows\SysWOW64\PING.EXE
            ping 1.1.1.1 -n 1 -w 3000
            3⤵
            • Runs ping.exe
            PID:1632
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Modifies service
        • Suspicious use of AdjustPrivilegeToken
        PID:1780
      • C:\Windows\SysWOW64\DllHost.exe
        C:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}
        1⤵
          PID:1676

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/1948-10-0x000007FEF6790000-0x000007FEF6A0A000-memory.dmp

          Filesize

          2.5MB

          Download