Overview

overview

10

Static

static

1

7af890c711...e1.exe

windows7-x64

10

7af890c711...e1.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    17-04-2023 17:42

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General

  • Target

    7af890c71121d682203be3b23497272f4338cdc27f5af49c41f8275d582e85e1.exe

  • Size

    92KB

  • MD5

    bf6e423769b1dc31dafc847cbfe9076a

  • SHA1

    50db0bde95a3d257498ffc30250636d753c7ea58

  • SHA256

    7af890c71121d682203be3b23497272f4338cdc27f5af49c41f8275d582e85e1

  • SHA512

    a985faf89341ea70e1106f27b9e253660cc90ecf0dae17fc2f3a208bd5dd43a7b8bf7fd1e69a8f9b730208154a0a6ead53900d1e315138e9e2ed8a492791d347

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4A6GHr/gk1juEGsQJcntrUbSnmp8zaUbBa:Qw+asqN5aW/hLQOhZksGcB8yC8zacBa

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! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail prancesonce@tuta.io Write this ID in the title of your message 244BE19C In case of no answer in 24 hours write us to theese e-mails: prancesonce@cock.li You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 5 files for free decryption. The total size of files must be less than 10Mb (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

prancesonce@tuta.io

prancesonce@cock.li

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
  • 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 SetWindowsHookEx 1 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\7af890c71121d682203be3b23497272f4338cdc27f5af49c41f8275d582e85e1.exe
    "C:\Users\Admin\AppData\Local\Temp\7af890c71121d682203be3b23497272f4338cdc27f5af49c41f8275d582e85e1.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:912
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1976
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:396
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2016
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2680
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2964
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1576
        • 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 SetWindowsHookEx
          PID:2612
        • 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:784
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:272

      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:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\osetup.dll.id-244BE19C.[prancesonce@tuta.io].java
        Filesize

        6.3MB

        MD5

        bdfed65a4bfc21aede7a688a1997ea8a

        SHA1

        f6fac1040247f2d8f0fe2abdd5dcda11363f9497

        SHA256

        473ce997a2ae083eaa5b73899af6f3319f74ab5aaea8eff1087408db4cdbd850

        SHA512

        ee047379e13284bd9f2dc15832dd5fcbfb97e9b82eeacf6881d6a91f5c5022f0d9e825cb9d23cac54085186ad36a7b56a90ea5d114fa64abf421bfb5a3ddc5d9

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

        13KB

        MD5

        4e39f88a8eebfabcc26dc281ac30d37f

        SHA1

        1e51949b3b137e640fe7a5a539ad8df553c8c530

        SHA256

        8e96f7d01f8ad0a986655fe78de493a81ce2ae0da2a6bb937ebee8c36a8d2619

        SHA512

        8d23105fe3b227031ab1ceccf0c1d6f3864ef5b9d4c539a486fa4b36cb74e7467e99a26fe9d0e88388682dd68f502266c1a0ed66b7356411ed763357eacf83d4

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

        13KB

        MD5

        4e39f88a8eebfabcc26dc281ac30d37f

        SHA1

        1e51949b3b137e640fe7a5a539ad8df553c8c530

        SHA256

        8e96f7d01f8ad0a986655fe78de493a81ce2ae0da2a6bb937ebee8c36a8d2619

        SHA512

        8d23105fe3b227031ab1ceccf0c1d6f3864ef5b9d4c539a486fa4b36cb74e7467e99a26fe9d0e88388682dd68f502266c1a0ed66b7356411ed763357eacf83d4

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      • memory/2612-20210-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp
        Filesize

        64KB

        Download