Overview

overview

10

Static

static

bf43eafd93...87.exe

windows7_x64

10

bf43eafd93...87.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 03:05

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General

  • Target

    bf43eafd9365c34862e9ff41857bfacb2649e37c405bec4dae099374146cda87.exe

  • Size

    560KB

  • MD5

    b0f46ff6a22ba47e9847c60bf231d16d

  • SHA1

    d6b9ef6687fda4bafcd335784fff4cacd96d9dde

  • SHA256

    bf43eafd9365c34862e9ff41857bfacb2649e37c405bec4dae099374146cda87

  • SHA512

    ba6c9845d951eccea8b39958e889a74697f0acb2080c70a715035ae39561d6c1abc8e4165b5d7a8f7b7d367dd9e1b0c6892981c45a062880c9aacbcee70b34b4

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
All FILES ENCRYPTED "RSA1024" All YOUR FILES HAVE BEEN ENCRYPTED!!! IF YOU WANT TO RESTORE THEM, WRITE US TO THE E-MAIL [email protected] IN THE LETTER WRITE YOUR ID, YOUR ID 1A8D15F8 IF YOU ARE NOT ANSWERED, WRITE TO EMAIL: [email protected] YOUR SECRET KEY WILL BE STORED ON A SERVER 7 DAYS, AFTER 7 DAYS IT MAY BE OVERWRITTEN BY OTHER KEYS, DON'T PULL TIME, WAITING YOUR EMAIL FREE DECRYPTION FOR PROOF You can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) DECRYPTION PROCESS: When you make sure of decryption possibility transfer the money to our bitcoin wallet. As soon as we receive the money we will send you: 1. Decryption program. 2. Detailed instruction for decryption. 3. And individual keys for decrypting your files. !WARNING! 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.

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 1 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.

    spywarestealer
  • 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\bf43eafd9365c34862e9ff41857bfacb2649e37c405bec4dae099374146cda87.exe
    "C:\Users\Admin\AppData\Local\Temp\bf43eafd9365c34862e9ff41857bfacb2649e37c405bec4dae099374146cda87.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:1564
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1720
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:584
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1036
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1684
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1444
        • 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:1540
        • 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:1556
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1508

      Network

      MITRE ATT&CK Enterprise v6

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      Downloads

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

        13KB

        MD5

        e468c6870b626ce71c34f2bd04029a35

        SHA1

        d71729a8bb25f9262c8ea5b28b1001bcf2fe1509

        SHA256

        4a12fa73e2ac14e1c72f1f2b8077d553d02be7fac31acbb06f333357dc588d56

        SHA512

        9370f02c1c4edac8c5b31f9d7cff0e8fdb8d919a54a221f0a45a26f2b8fe6738031528eabefc083c69e8fcc60e2e720f8fb4b8295ca2a1f1efbd9772157049b8

        Download Submit

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

        13KB

        MD5

        e468c6870b626ce71c34f2bd04029a35

        SHA1

        d71729a8bb25f9262c8ea5b28b1001bcf2fe1509

        SHA256

        4a12fa73e2ac14e1c72f1f2b8077d553d02be7fac31acbb06f333357dc588d56

        SHA512

        9370f02c1c4edac8c5b31f9d7cff0e8fdb8d919a54a221f0a45a26f2b8fe6738031528eabefc083c69e8fcc60e2e720f8fb4b8295ca2a1f1efbd9772157049b8

        Download Submit

      • memory/584-58-0x0000000000000000-mapping.dmp

        Download

      • memory/1036-60-0x0000000000000000-mapping.dmp

        Download

      • memory/1312-56-0x0000000000000000-mapping.dmp

        Download

      • memory/1444-62-0x0000000000000000-mapping.dmp

        Download

      • memory/1540-63-0x0000000000000000-mapping.dmp

        Download

      • memory/1556-64-0x0000000000000000-mapping.dmp

        Download

      • memory/1556-65-0x000007FEFBE61000-0x000007FEFBE63000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1564-59-0x00000000023B0000-0x00000000023E3000-memory.dmp

        Filesize

        204KB

        Download

      • memory/1564-54-0x0000000075CD1000-0x0000000075CD3000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1564-55-0x0000000000400000-0x0000000000491000-memory.dmp

        Filesize

        580KB

        Download

      • memory/1684-61-0x0000000000000000-mapping.dmp

        Download

      • memory/1720-57-0x0000000000000000-mapping.dmp

        Download