Overview

overview

10

Static

static

10

2024-05-16...ma.exe

windows7-x64

10

2024-05-16...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    16-05-2024 22:31

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General

  • Target

    2024-05-16_fb953d1eaea934f718afb7de43b6a91f_crysis_dharma.exe

  • Size

    92KB

  • MD5

    fb953d1eaea934f718afb7de43b6a91f

  • SHA1

    f30ac814ef19e45119ecff2e64256d3c1b7d1864

  • SHA256

    df7fe80d2ea970965f5eadcba3b981391f969fbd98a804f4ac3364a57a237cf4

  • SHA512

    8c1d6b7e579e84530dcac95b63f07c84c647d531a0f3bdf2646957537f4fda7a5f3d5f01b91fc1f86370ebfe1c7bb4d54e8ee023197264096ca05485609b9dc6

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AsFjrC+wIVwcbTO8SapkbAnkTfKYk1xZqx60Fm8:Qw+asqN5aW/hLsCQCc5vkjKxCx60Fr

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
We downloaded to our servers and encrypted all your databases and personal information! If you do not write to us within 24 hours, we will start publishing and selling your data on the darknet on hacker sites and offer the information to your competitors email us: [email protected] YOUR ID If you haven't heard back within 24 hours, write to this email: [email protected] IMPORTANT INFORMATION! Keep in mind that once your data appears on our leak site,it could be bought by your competitors at any second, so don't hesitate for a long time.The sooner you pay the ransom, the sooner your company will be safe.. Guarantee:If we don't provide you with a decryptor or delete your data after you pay,no one will pay us in the future. We value our reputation. Guarantee key:To prove that the decryption key exists, we can test the file (not the database and backup) for free. Do not try to decrypt your data using third party software, it may cause permanent data loss. Don't go to recovery companies - they are essentially just middlemen.Decryption of your files with the help of third parties may cause increased price (they add their fee to our) we're the only ones who have the decryption keys.

Signatures

  • Dharma

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

    ransomwaredharma
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (322) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Drops startup file 5 IoCs
  • Loads dropped DLL 7 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
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 13 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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
  • Modifies data under HKEY_USERS 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-16_fb953d1eaea934f718afb7de43b6a91f_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-16_fb953d1eaea934f718afb7de43b6a91f_crysis_dharma.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:1488
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1728
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2488
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1852
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2552
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:780
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1288
        • 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:1512
        • 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:1772
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2108
      • C:\Windows\system32\msiexec.exe
        C:\Windows\system32\msiexec.exe /V
        1⤵
        • Enumerates connected drives
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2520
        • C:\Windows\syswow64\MsiExec.exe
          C:\Windows\syswow64\MsiExec.exe -Embedding 2EF1711C4E344251FC17A449B15EDCA1
          2⤵
          • Loads dropped DLL
          PID:2008
        • C:\Windows\system32\MsiExec.exe
          C:\Windows\system32\MsiExec.exe -Embedding 6CEA89B1CEF0CAC1D9DCD7E9DBC72403
          2⤵
          • Loads dropped DLL
          PID:2556

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-75698828.[[email protected]].lock
        Filesize

        23.5MB

        MD5

        a34e8ffcf898a6dae23d985e79b0c30d

        SHA1

        6ed8c79cb784770504aa620e083bb382fbabc082

        SHA256

        33bdc24f828a05298aea3311492be2c19641c89917d9ce754aec09e8462caa17

        SHA512

        ef49f635a948e8ed404ccc7236fdb4e9885f687737d351b9a20c64be96778cf45ca80ebef8ddad520610f1742901c96b34b36be61130439b5ab0f3f3ae61765b

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

        7KB

        MD5

        3815c206b315d3f1e2843c695ebfd233

        SHA1

        57bb1e03295ab5722442b9fcaeee40a1a2ab03b4

        SHA256

        da6bd218a940e89433fd960d66188bc32ada6c5c04e1ecc7d7ae8694afd3a9f0

        SHA512

        60e85a938deec011543c4caed8b2f249f7fef90c3714c400c0053e16a5767a34b6735f8f057d130989d4125d4efb7b1cf2dbedc0ada19960e3510bb6a8a2608b

        Download Submit

      • C:\Windows\Installer\MSI59C4.tmp
        Filesize

        257KB

        MD5

        d1f5ce6b23351677e54a245f46a9f8d2

        SHA1

        0d5c6749401248284767f16df92b726e727718ca

        SHA256

        57cb8f01cf553c3886760180d1a74839f2f676640115504485aca9692f577acc

        SHA512

        960e90894e7bedcc89894e77e57e8ee0c99dd2c530d02665e8bbd3a1793eccc1e295c5923d1f37c757fa1158097fbaae70898c16052882d3d210c29ea801b3ba

        Download Submit

      • C:\Windows\Installer\MSI5ACE.tmp
        Filesize

        363KB

        MD5

        4a843a97ae51c310b573a02ffd2a0e8e

        SHA1

        063fa914ccb07249123c0d5f4595935487635b20

        SHA256

        727ecf287fb6f4953ee7748913dd559b4f8d3a022fa2ca55bc51cf5886c52086

        SHA512

        905c081552d95b523ecf1155b6c7e157652e5ff00cda30c1c21124d266eb7d305c3398d6832316f403dc45d1b639f1a5a67aea29922cd1a032f52e5247ec55d2

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      • C:\Windows\Installer\MSI5ED5.tmp
        Filesize

        28KB

        MD5

        85221b3bcba8dbe4b4a46581aa49f760

        SHA1

        746645c92594bfc739f77812d67cfd85f4b92474

        SHA256

        f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

        SHA512

        060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

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      • C:\Windows\Installer\MSI5F73.tmp
        Filesize

        148KB

        MD5

        33908aa43ac0aaabc06a58d51b1c2cca

        SHA1

        0a0d1ce3435abe2eed635481bac69e1999031291

        SHA256

        4447faacefaba8f040822101e2a4103031660de9139e70ecff9aa3a89455a783

        SHA512

        d5216a53df9cfbe1a78629c103286eb17042f639149c46b6a1cd76498531ae82afd265462fbe0ba9baaff275fc95c66504804f107c449f3fc5833b1ed9c3da46

        Download Submit

      • C:\Windows\Installer\MSI639A.tmp
        Filesize

        86KB

        MD5

        ff58cd07bf4913ef899efd2dfb112553

        SHA1

        f14c1681de808543071602f17a6299f8b4ba2ae8

        SHA256

        1afafe9157ff5670bbec8ce622f45d1ce51b3ee77b7348d3a237e232f06c5391

        SHA512

        23e27444b6cdc17fe56f3a80d6325c2be61ae84213bc7cdaad7bb96daa7e8d2d3defc1b96c3cee4a3f32dc464b0e05720bcf1c0e99626bf83de1b6d5aac000a3

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      • memory/1512-20233-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

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