Overview

overview

10

Static

static

3

2024-12-03...ma.exe

windows7-x64

10

2024-12-03...ma.exe

windows10-2004-x64

10

Resubmissions

03-12-2024 04:56

241203-fkycrawrcm 10

03-12-2024 04:24

241203-e1rz8szmgz 10

Analysis

  • max time kernel
    129s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 04:56

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General

  • Target

    2024-12-03_56d8d0386a2dc75b88ca52ddafbd3430_crysis_dharma.exe

  • Size

    92KB

  • MD5

    56d8d0386a2dc75b88ca52ddafbd3430

  • SHA1

    165b9b0cb19bd4f849f2431b12028c179be57780

  • SHA256

    9d131d41b278c689424e6713a320e8e410501b17260bdb2a6770d9e407d82df0

  • SHA512

    02048a750b58befcdfe202626af009896d035a8a065d9fa87061fc85b94286e614f73a513ec436355a2edff1c56c53c40238f5f030106ebe9ab989d1c58693d5

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AgOWEtLXa7ujvLCh2k77Z8fDaQg9EgDCO/v:Qw+asqN5aW/hLiOWsFj0vFaDaQSE3A

Score
10/10
dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Signatures

  • Dharma

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

    ransomwaredharma
  • Dharma family
    dharma
  • 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
  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Drops startup file 5 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 3 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Interacts with shadow copies 3 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 registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 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\2024-12-03_56d8d0386a2dc75b88ca52ddafbd3430_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-03_56d8d0386a2dc75b88ca52ddafbd3430_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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2468
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2732
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2652
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2764
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1676
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2164
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1700
        • 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
          • Suspicious use of FindShellTrayWindow
          PID:2912
        • 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
          • Suspicious use of FindShellTrayWindow
          PID:2100
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1532
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Public\Desktop\Adobe Reader 9.lnk.id-4B82D222.[[email protected]].MAGA
        1⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:2532

      Network

      MITRE ATT&CK Enterprise v15

      Reconnaissance

      Resource Development

      Initial Access

      Execution

      Windows Management Instrumentation

      1
      T1047

      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

      Direct Volume Access

      1
      T1006

      Indicator Removal

      2
      T1070

      File Deletion

      2
      T1070.004

      Modify Registry

      2
      T1112

      Credential Access

      Credentials from Password Stores

      2
      T1555

      Credentials from Web Browsers

      1
      T1555.003

      Windows Credential Manager

      1
      T1555.004

      Unsecured Credentials

      1
      T1552

      Credentials In Files

      1
      T1552.001

      Discovery

      Browser Information Discovery

      1
      T1217

      System Information Discovery

      1
      T1082

      System Location Discovery

      1
      T1614

      System Language Discovery

      1
      T1614.001

      Lateral Movement

      Collection

      Data from Local System

      1
      T1005

      Command and Control

      Exfiltration

      Impact

      Inhibit System Recovery

      2
      T1490

      Replay Monitor

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\osetup.dll.id-4B82D222.[[email protected]].MAGA
        Filesize

        6.3MB

        MD5

        53072b71e7d1b7ac773bed445be65720

        SHA1

        18aa0168acc44c704448200ccb6bcc8100c3f9b5

        SHA256

        10936d994ffaa9de1f5c0007102fba0f8bbfa51bfda9845dfa4fc82f12b4c736

        SHA512

        330183363bc5a045e6315e81939ebfcec2ac907e4fdb6d64ba3bb4c58417b2c8007ca7e8c430917c46b28481704582fdef39b6756d96715e600aa6811aa76989

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

        1KB

        MD5

        c2541b000449ec865c21f12d4d974a79

        SHA1

        ed89f46b20c317e2e583cabc9c03c42ce4074bf0

        SHA256

        b3149a57d9e17b70a2b75c8f9eac31d70042087bb68966198fe2f562993c5517

        SHA512

        cf66ba0b27d0e6aab3d54225769c7744faf3f185949bd0598e9514cac19b9a4c3000ec0b87da0f618b3df54f31146319ca3fd07c7575a8f1f1a79b0702a108b1

        Download Submit

      • \PROGRA~1\COMMON~1\MICROS~1\OFFICE14\Cultures\OFFICE.ODF
        Filesize

        4.1MB

        MD5

        c3da214ab5fb2e66e61fd8f63f72839f

        SHA1

        0ad2b19a1a59ec94d373d2c865431300c849902b

        SHA256

        9f4845358945756d231b58d2be9dddd1f436df1955daa79ab04149cf1289f4ef

        SHA512

        84f8035d685d517a0e5de019e61674288c087a48a5e01e1b9315e51ff9a4aa84fa72eb2487fd3357d5a1006a4e7c7ef343707347f997e1b66964b9e6c47c64f7

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      • \PROGRA~1\MICROS~2\Office14\1033\GrooveIntlResource.dll
        Filesize

        8.4MB

        MD5

        48019bd50a809545c202053313cd4b57

        SHA1

        60c431499a9f225334032a2f13b825f7a9da8680

        SHA256

        f9d97706a48caead3004a695b57c252103a67f0be66ba58807b1ed430bbb74fd

        SHA512

        f0ab826b0ee57de7909041671462b87f52fa2837501d1f4fa85d159aadab77f340b12cf5f97ab8a4c1b1d6428c35561e9118f6bb5b3c86628bd93b3d8b7198aa

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      • \PROGRA~1\MICROS~2\Office14\GROOVEEX.DLL
        Filesize

        6.4MB

        MD5

        a71a930e1e61e73da97423bdb95ce2d8

        SHA1

        8779f17ce0f68aef21969e39e1d84019bea04118

        SHA256

        80f65cbcf64bf5de2c957c83af1a41e9fd624bb88c873a4204ccde77ed428be7

        SHA512

        6f36d227d8328b411a8a7eb776eb49de7a4dcb8e18df5caccbf27114b56a79c327b1c9b13bb2d18ff6ca3738bb3a13d819c9b5693385d0a4fe385586f03beac5

        Download Submit