Overview

overview

10

Static

static

f9731c6a91...5d.exe

windows7_x64

10

f9731c6a91...5d.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    37s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    28-02-2021 09:13

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General

  • Target

    f9731c6a91210d68432036e839574be2130022763e2406d7a548cd330672da5d.exe

  • Size

    1.2MB

  • MD5

    8c58550a8e5edbfe872391c918fa6600

  • SHA1

    d3d1707112d7dfad769df536ca6dbbb8b45363a9

  • SHA256

    f9731c6a91210d68432036e839574be2130022763e2406d7a548cd330672da5d

  • SHA512

    04c24055cbb513b96a6b27b8644e061c2e177e66edec29e299549a75d33ce5b98e7bce6363f9ec107f6173927989b78eb017b43d8bb6ebcc5e3389c46db903f2

Score
10/10
dharmapersistenceransomwarespyware

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
YOUR FILES ARE ENCRYPTED Don't worry,you can return all your files! If you want to restore them, follow this link: email pexdatax@gmail.com YOUR ID If you have not been answered via the link within 12 hours,Tox - 1123AA3360A5AFB77D928C4CD99E9EF66EF28FCEEE1F840B93456FD9CE562B7F92204B0D8904 please download - https://tox.chat/download.html or http://pexdatax.com/ write to us by e-mail: pexdatax@gmail.com Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Emails

pexdatax@gmail.com

URLs

https://tox.chat/download.html

http://pexdatax.com/

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
  • 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 3 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Interacts with shadow copies 2 TTPs 2 IoCs

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

    ransomware
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f9731c6a91210d68432036e839574be2130022763e2406d7a548cd330672da5d.exe
    "C:\Users\Admin\AppData\Local\Temp\f9731c6a91210d68432036e839574be2130022763e2406d7a548cd330672da5d.exe"
    1⤵
    • 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:384
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1712
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1716
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1924
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1676
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:652
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          PID:208
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          PID:224
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:820

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Privilege Escalation

      Defense Evasion

      File Deletion

      2
      T1107

      Modify Registry

      2
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      System Information Discovery

      1
      T1082

      Lateral Movement

      Collection

      Data from Local System

      1
      T1005

      Exfiltration

      Command and Control

      Impact

      Inhibit System Recovery

      2
      T1490

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        MD5

        0a678abd24daa258f4b41ea8007a9179

        SHA1

        957df02b41963e18ef24d1e31fbb82568dd14af1

        SHA256

        66ed556f245678402f5e47fc497fe8f1a6117889a76a920fc738ff27bfeeb745

        SHA512

        06f46f704a78a34e0677f533b7b50eee2b4bf59be74d9e5b0467038cf5f04ec88c45ceebb7ea908227ffd9e907c0655777d7b2610afafa08076edf0f33ce19ff

        Download Submit
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        MD5

        0a678abd24daa258f4b41ea8007a9179

        SHA1

        957df02b41963e18ef24d1e31fbb82568dd14af1

        SHA256

        66ed556f245678402f5e47fc497fe8f1a6117889a76a920fc738ff27bfeeb745

        SHA512

        06f46f704a78a34e0677f533b7b50eee2b4bf59be74d9e5b0467038cf5f04ec88c45ceebb7ea908227ffd9e907c0655777d7b2610afafa08076edf0f33ce19ff

        Download Submit
      • memory/208-14-0x0000000000000000-mapping.dmp
        Download
      • memory/224-15-0x0000000000000000-mapping.dmp
        Download
      • memory/384-3-0x0000000006600000-0x0000000006611000-memory.dmp
        Filesize

        68KB

        Download
      • memory/384-4-0x0000000076241000-0x0000000076243000-memory.dmp
        Filesize

        8KB

        Download
      • memory/384-2-0x0000000000401000-0x000000000041E000-memory.dmp
        Filesize

        116KB

        Download
      • memory/384-8-0x00000000001D0000-0x00000000001E9000-memory.dmp
        Filesize

        100KB

        Download
      • memory/384-9-0x0000000000400000-0x0000000000419000-memory.dmp
        Filesize

        100KB

        Download
      • memory/384-7-0x00000000001B0000-0x00000000001C3000-memory.dmp
        Filesize

        76KB

        Download
      • memory/652-13-0x0000000000000000-mapping.dmp
        Download
      • memory/1676-12-0x0000000000000000-mapping.dmp
        Download
      • memory/1712-6-0x0000000000000000-mapping.dmp
        Download
      • memory/1716-10-0x0000000000000000-mapping.dmp
        Download
      • memory/1732-18-0x000007FEF7300000-0x000007FEF757A000-memory.dmp
        Filesize

        2.5MB

        Download
      • memory/1924-11-0x0000000000000000-mapping.dmp
        Download
      • memory/1988-5-0x0000000000000000-mapping.dmp
        Download