Overview

overview

10

Static

static

3

e181fb2c45...75.exe

windows7-x64

10

e181fb2c45...75.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19-04-2024 18:21

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General

  • Target

    e181fb2c45e278661fbbf3fe9b4878e3d7bcee0873d7e1132e3808f10d3e4875.exe

  • Size

    92KB

  • MD5

    9dfcd5165fcbf89e319ceca3f5077490

  • SHA1

    32fb887ad469eecfaeb66ff98d73da0edd9a7adc

  • SHA256

    e181fb2c45e278661fbbf3fe9b4878e3d7bcee0873d7e1132e3808f10d3e4875

  • SHA512

    4e417f5ac6898bfe60c772270df06e14a452c1a731558a2e334ae1b09acd5928a042d3f17b07b86e773a559c4f173ec022015d4442062b4f53df8bb194356a7d

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4Ai5KS18YgmeMQq1NQDrorHikgd2ZLj:Qw+asqN5aW/hLqKS183iNyrorHi

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\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 decryptex@airmail.cc YOUR ID If you have not been answered via the link within 12 hours, write to us by e-mail: dex.dex.tuta.io 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

decryptex@airmail.cc

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
  • Renames multiple (319) files with added filename extension

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

    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).

  • 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
  • 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\e181fb2c45e278661fbbf3fe9b4878e3d7bcee0873d7e1132e3808f10d3e4875.exe
    "C:\Users\Admin\AppData\Local\Temp\e181fb2c45e278661fbbf3fe9b4878e3d7bcee0873d7e1132e3808f10d3e4875.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:2752
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2732
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2056
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2084
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2764
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1084
        • 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:2780
        • 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:2276
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1948

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Initial Access

      Execution

      Persistence

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Privilege Escalation

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Defense Evasion

      Indicator Removal

      2
      T1070

      File Deletion

      2
      T1070.004

      Modify Registry

      2
      T1112

      Credential Access

      Unsecured Credentials

      1
      T1552

      Credentials In Files

      1
      T1552.001

      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

      Resource Development

      Reconnaissance

      Replay Monitor

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-EC8FC080.[decryptex@airmail.cc].dex
        Filesize

        23.5MB

        MD5

        90dc265678ccf3715785c0eab5515723

        SHA1

        3ab804a01bb87fa3770b9f16391d55188d8850ce

        SHA256

        d9c8080af007a1cb7dea82a1a3e25544c66e9d0a40f334662cf8d02c3bf12873

        SHA512

        e003a2496273c75106c7c3a3ec28f06f219db0c25cb4b1ed36a16c8379175958c2d35583c5d21bdabede0fd5d166403874433d00f3880e4479fc5562a9554497

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

        7KB

        MD5

        adcce89aaa5a98d90e2f406b4a3e68d5

        SHA1

        b10c41aa4110ce61ab6e8fa2ff6ecdf39680bc0c

        SHA256

        72069945c7d1618bc4ae275d00fc743ef8184e4b86d36e996c53ed4b54b3ad4c

        SHA512

        a78145a7c8e57704a117f7966dd6dd88eaf8d65bd5941cdfc221f94080548c930cf282658da90e3428f770064c190e942365d80fd280d7fa9e95e04f7a90c7c3

        Download Submit