Overview

overview

10

Static

static

553f674770...cb.exe

windows7_x64

10

553f674770...cb.exe

windows10_x64

10

Analysis

  • max time kernel
    153s
  • max time network
    40s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    11-09-2020 08:09

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General

  • Target

    553f674770840d592fd718f1cb8eed6d4210c7ce73944fb2d200e8588584fccb.exe

  • Size

    92KB

  • MD5

    40d778624057e93cb98a8ff89d74baeb

  • SHA1

    c5ed829367c08aa36597e77c20f1ae1b8020f0e2

  • SHA256

    553f674770840d592fd718f1cb8eed6d4210c7ce73944fb2d200e8588584fccb

  • SHA512

    b9479c0e7d51d2276051eb3f6a58cddca906df7f9edd9405e063be5dac9f91de421508ad53517b71a8ee0820267700d706970dfd0031a49d8dd0b6933a08e469

Score
10/10
ransomwarepersistencedharmaspyware

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\FILES ENCRYPTED.txt

Ransom Note
all your data has been locked us You want to return? write email [email protected] or [email protected]

Signatures

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

    ransomwaredharma
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops startup file 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 77 IoCs
  • Drops file in System32 directory 1 IoCs
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 27810 IoCs
  • Interacts with shadow copies 2 TTPs 2 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 248 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\553f674770840d592fd718f1cb8eed6d4210c7ce73944fb2d200e8588584fccb.exe
    "C:\Users\Admin\AppData\Local\Temp\553f674770840d592fd718f1cb8eed6d4210c7ce73944fb2d200e8588584fccb.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:992
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:664
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:868
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:980
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1584
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1488
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Modifies service
        • Suspicious use of AdjustPrivilegeToken
        PID:568

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/664-1-0x0000000000000000-mapping.dmp

        Download

      • memory/868-2-0x0000000000000000-mapping.dmp

        Download

      • memory/980-3-0x0000000000000000-mapping.dmp

        Download

      • memory/1488-5-0x0000000000000000-mapping.dmp

        Download

      • memory/1584-4-0x0000000000000000-mapping.dmp

        Download

      • memory/1756-0-0x0000000000000000-mapping.dmp

        Download