Overview

overview

10

Static

static

b3984a2de7...39.exe

windows7-x64

10

b3984a2de7...39.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    13-01-2023 11:07

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General

  • Target

    b3984a2de76eee3ad20c4b13e0c0cbbab2dd6db65e3f6ca34418e79c21cf5c39.exe

  • Size

    92KB

  • MD5

    b178705190001fcb012000eed9ba33d2

  • SHA1

    db6d85f58ad3e6ebb62d92be1dbe7741023a1e7b

  • SHA256

    b3984a2de76eee3ad20c4b13e0c0cbbab2dd6db65e3f6ca34418e79c21cf5c39

  • SHA512

    b099931aececa1f2468140da13bf8defa9075f812919acc7d9f36d8c2e5d201f2282d02238a4b77dd6c70001c3583dd0581e84bfa2bccc6add13f48c4ec28306

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4A25CONwm4+SCuIlzbU4l5c4Ci/6:Qw+asqN5aW/hLSNwi/xY4lu4Ci

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
YOUR FILES ARE ENCRYPTED 1024 Don't worry, you can return all your files! If you want to restore them, write to the mail: snowwind@tutanota.com YOUR ID snowwind@msgsafe.io ATTENTION! We recommend you contact us directly to avoid overpaying agents 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

snowwind@tutanota.com

snowwind@msgsafe.io

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\b3984a2de76eee3ad20c4b13e0c0cbbab2dd6db65e3f6ca34418e79c21cf5c39.exe
    "C:\Users\Admin\AppData\Local\Temp\b3984a2de76eee3ad20c4b13e0c0cbbab2dd6db65e3f6ca34418e79c21cf5c39.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:1508
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1692
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1908
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1056
        • 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:1892
        • 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:1604
        • 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:1176
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1632

      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

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      Downloads

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

        2KB

        MD5

        9346c69b0d80f7dc8a2bc6e4284b13e1

        SHA1

        f749f769f5302b7543dabeb60770c7079bf73e74

        SHA256

        55665ccbb0530932cc2eb43f1830891dbc4cf0bed05f9cd4f07b94a08b2c7bd2

        SHA512

        b31294addae670d53674d2ccff1e55dc920262b806a4640ade2a146308d4a9226cc45743a1427da8b90856f603c65155ab7590af6e1ae18dad7d1e5718269fc7

        Download Submit
      • memory/940-55-0x0000000000000000-mapping.dmp
        Download
      • memory/1056-58-0x0000000000000000-mapping.dmp
        Download
      • memory/1176-62-0x0000000000000000-mapping.dmp
        Download
      • memory/1508-54-0x00000000757E1000-0x00000000757E3000-memory.dmp
        Filesize

        8KB

        Download
      • memory/1604-61-0x0000000000000000-mapping.dmp
        Download
      • memory/1692-56-0x0000000000000000-mapping.dmp
        Download
      • memory/1720-59-0x0000000000000000-mapping.dmp
        Download
      • memory/1892-60-0x0000000000000000-mapping.dmp
        Download
      • memory/1908-57-0x0000000000000000-mapping.dmp
        Download