Overview

overview

10

Static

static

10

067f997e6f...40.exe

windows7-x64

10

0c0c9a19db...c1.exe

windows7-x64

10

1a8f35d0f2...b9.exe

windows7-x64

2354403f00...3b.exe

windows7-x64

240ac12f9c...0b.exe

windows7-x64

10

276727bfac...36.exe

windows7-x64

10

280a75ca5c...8e.exe

windows7-x64

2e8af1ad4b...51.exe

windows7-x64

10

32c51906c1...ec.exe

windows7-x64

3e84def5ee...96.exe

windows7-x64

403b8f1ce9...40.exe

windows7-x64

4731758b5f...25.exe

windows7-x64

9

4c21b335ba...49.exe

windows7-x64

10

4c99ac9f69...35.exe

windows7-x64

4fbbd67a32...a7.exe

windows7-x64

10

622e2834e5...95.exe

windows7-x64

10

6734e7474c...fd.exe

windows7-x64

67a00565a4...5d.exe

windows7-x64

6e228df5e4...62.exe

windows7-x64

7b93299c45...03.exe

windows7-x64

7c2a9bae3b...c1.exe

windows7-x64

10

7d9c97a133...b5.exe

windows7-x64

10

83b294975e...74.exe

windows7-x64

9b0cfabed9...8e.exe

windows7-x64

10

aa63528bf7...cd.exe

windows7-x64

b54d6dc708...7d.exe

windows7-x64

10

b6b2c1f4bb...00.exe

windows7-x64

10

ba43b2eb48...fb.exe

windows7-x64

cc43fc18d6...e8.exe

windows7-x64

10

d50b23e12c...af.exe

windows7-x64

10

ebb17d81ff...0f.exe

windows7-x64

ec09cfa4a7...da.exe

windows7-x64

10

Resubmissions

16-03-2024 17:17

240316-vtswysfd2y 10

16-03-2024 15:31

240316-syg9xafg39 10

15-03-2024 08:15

240315-j5rmgsbg5z 10

Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15-03-2024 08:15

Sharing

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Report Analysis Logs

General

  • Target

    622e2834e51caa303d120c7503d8fcce671226a0342d7be0f8cf546b44cee195.exe

  • Size

    92KB

  • MD5

    e096b294d0ed5f42ca68bc41c47ac27a

  • SHA1

    1d5601986887ead48d036f1401330b8c9fd59eeb

  • SHA256

    622e2834e51caa303d120c7503d8fcce671226a0342d7be0f8cf546b44cee195

  • SHA512

    4d8ead3774210c552a0633db886ea1bfd3c13fcd51fd60efe9b7db8f27ff1a5a6ae4394cbcd8ec01b5514492966b118c4647efcea191313e4f1ec3536ba937ba

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4Ah610ButurulYOGLwf6v7ctk:Qw+asqN5aW/hLnbfSGOGLpv7c+

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
All your files have been encrypted! Don't worry, you can return all your files! If you want to restore them, write to the mail: ronrivest@airmail.cc (ronvest@tutanota.de) YOUR ID jerd@420blaze.it Free decryption as guarantee Before paying you can send us up to 3 files for free decryption. The total size of files must be less than 3Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ 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

ronrivest@airmail.cc

ronvest@tutanota.de

jerd@420blaze.it

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 (311) 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\622e2834e51caa303d120c7503d8fcce671226a0342d7be0f8cf546b44cee195.exe
    "C:\Users\Admin\AppData\Local\Temp\622e2834e51caa303d120c7503d8fcce671226a0342d7be0f8cf546b44cee195.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:3060
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3040
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2552
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:980
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2884
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2244
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2492
        • 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:2096
        • 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:744
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2012

      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

      Loading Replay Monitor...

      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\osetup.dll.id-4B61CFE5.[ronvest@tutanota.de].r0n
        Filesize

        6.3MB

        MD5

        662f5677f385c0b928ac87adbff71a1f

        SHA1

        a3cf3ed1619c1d1b938766252e76568144bd255d

        SHA256

        2569206ba2388ffa03afa08e2281f889c6faf13ade7134821cada560e2b02b9d

        SHA512

        41aced30217a3faddc2ba18d686ce7c44c6b91373e83ad7ccb7e585c575a227ec5f0efe6b5faef1cd439e399cf2bc1c3ac0b6d5cd923bad9bd774ec03cfae801

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

        4KB

        MD5

        131f072e5c213a5a4f4139f6dc1e091c

        SHA1

        cf1ddb93bb9e57ec27288a9345eac5b0e64a84c0

        SHA256

        90a4606bb2e38f3196ae0163da7aebe8cfa5bc45683c08faa70beddfddc13998

        SHA512

        4425692aea35ce16f49302640fa75b98c2e3a1cd35407553903773fff1ad417dbe3a17c9c83cb7e726d026718c882f1bc32f28f9ad8fdd9992f27a3eb3acb3cb

        Download Submit
      • memory/2096-20211-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp
        Filesize

        64KB

        Download