Overview

overview

10

Static

static

10

7883f01096...8a.exe

windows10-2004-x64

10

Resubmissions

09-10-2022 11:18

221009-neebpahaep 10

27-04-2022 22:34

220427-2g3nysegfq 10

Analysis

  • max time kernel
    80s
  • max time network
    89s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2022 11:18

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General

  • Target

    7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe

  • Size

    543KB

  • MD5

    998022b70d83c6de68e5bdf94e0f8d71

  • SHA1

    b87a947f3e85701fcdadd733e9b055a65a3b1308

  • SHA256

    7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a

  • SHA512

    2744b77f951bd2bb34b094dd3b54fcf8f7dca76e03c745809edc045749c814c7d88c9ddd69ad684a1c156716afae76b5ebec3f932d0f2a72b242878134f65647

  • SSDEEP

    12288:M1DTMHixr1moQqUiXINDl/m1s6BQio67VlA:AzmoQqUiXw2s6yiVx

Score
10/10
blackbastaransomware

Malware Config

Extracted

Path

C:\readme.txt

Ransom Note
Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom You can contact us and decrypt one file for free on this TOR site (you should download and install TOR browser first https://torproject.org) https://aazsbsgya565vlu2c6bzy6yfiebkcbtvvcytvolt33s77xypi7nypxyd.onion:80/ Your company id for log in: ba7a7058-3531-4b67-bae6-d602e9110361
URLs

https://aazsbsgya565vlu2c6bzy6yfiebkcbtvvcytvolt33s77xypi7nypxyd.onion:80/

Signatures

  • Black Basta

    A ransomware family targeting Windows and Linux ESXi first seen in February 2022.

    ransomwareblackbasta
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 5 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops file in System32 directory 11 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies registry class 3 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
    "C:\Users\Admin\AppData\Local\Temp\7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:456
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2356
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
      2⤵
        PID:3096
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3508
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:3416
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme.txt
        1⤵
        • Opens file in notepad (likely ransom note)
        PID:1560
      • C:\Windows\system32\mspaint.exe
        "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\dlaksjdoiwq.jpg" /ForceBootstrapPaint3D
        1⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:1460
      • C:\Windows\System32\svchost.exe
        C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s DsSvc
        1⤵
        • Drops file in System32 directory
        PID:3940
      • C:\Windows\system32\mspaint.exe
        "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\dlaksjdoiwq.jpg" /ForceBootstrapPaint3D
        1⤵
          PID:376
        • C:\Windows\system32\OpenWith.exe
          C:\Windows\system32\OpenWith.exe -Embedding
          1⤵
            PID:3796
          • C:\Windows\system32\OpenWith.exe
            C:\Windows\system32\OpenWith.exe -Embedding
            1⤵
              PID:4084

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\dlaksjdoiwq.jpg
              Filesize

              24KB

              MD5

              a70f03beb3a8246595eab83935227914

              SHA1

              3889abc62b9c643a2c99ce13e6230296c8288e9d

              SHA256

              397a78de041380082c5778818843ee9c2b65a9647fbc0d251244e6cac76e170c

              SHA512

              7d8e1385b59022bbbd4d2c610987ccc9f3382c173198215f8f58b483fddea7961c1c516d4ce027c6d59a6ba1a6797044dfd170bed8ae8546db9295db255a51a3

              Download Submit

            • C:\Users\Admin\Desktop\readme.txt
              Filesize

              401B

              MD5

              ab8018847c007394feabfa8f14626ebc

              SHA1

              d4669c9e29be5e1f32d7c30bf65ec8bd72566b2f

              SHA256

              2967e1d97d32605fc5ace49a10828800fbbefcc1e010f6004a9c88ef3ecdad88

              SHA512

              0f893ccd2add411ed93cade6519f9d2faf22831c60c279f355355406b72d92670a33b6b04362becb2344f3ff0b6ff979d9c078b24628c9de65cd421cf43402b9

              Download Submit

            • memory/456-132-0x0000000000000000-mapping.dmp

              Download

            • memory/2356-133-0x0000000000000000-mapping.dmp

              Download

            • memory/3096-134-0x0000000000000000-mapping.dmp

              Download

            • memory/3940-136-0x000002592EBA0000-0x000002592EBB0000-memory.dmp

              Filesize

              64KB

              Download

            • memory/3940-137-0x000002592F360000-0x000002592F370000-memory.dmp

              Filesize

              64KB

              Download