Overview

overview

10

Static

static

3

AbuseSir™ Labs.exe

windows7-x64

10

AbuseSir™ Labs.exe

windows10-2004-x64

10

Resubmissions

20-10-2024 05:07

241020-frz5xs1aqb 10

Analysis

  • max time kernel
    136s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2024 05:07

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General

  • Target

    AbuseSir™ Labs.exe

  • Size

    1.0MB

  • MD5

    055d1462f66a350d9886542d4d79bc2b

  • SHA1

    f1086d2f667d807dbb1aa362a7a809ea119f2565

  • SHA256

    dddf7894b2e6aafa1903384759d68455c3a4a8348a7e2da3bd272555eba9bec0

  • SHA512

    2c5e570226252bdb2104c90d5b75f11493af8ed1be8cb0fd14e3f324311a82138753064731b80ce8e8b120b3fe7009b21a50e9f4583d534080e28ab84b83fee1

  • SSDEEP

    24576:FRYz/ERA0eMuWfHvgPw/83JI8CorP9qY0:FE/yADMuYvgP93JIc2

Score
10/10
dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

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 [email protected] Write this ID in the title of your message 3036B99B In case of no answer in 24 hours write us to theese e-mails: [email protected] 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 1 file for free decryption. The total size of files must be less than 1Mb (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.

Signatures

  • Dharma

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

    ransomwaredharma
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (310) 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 2 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 27 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\AbuseSir™ Labs.exe
    "C:\Users\Admin\AppData\Local\Temp\AbuseSir™ Labs.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:1236
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2576
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1488
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1312
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3380
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3596
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:944
        • 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:3988
        • 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:2504
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2604
      • C:\Windows\system32\taskmgr.exe
        "C:\Windows\system32\taskmgr.exe" /4
        1⤵
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2548

      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-3036B99B.[[email protected]].ncov
        Filesize

        6.3MB

        MD5

        f74b007d347547def1e2523bebe1807b

        SHA1

        06d871ddfd0c677cf613dd778e8da7021926fe48

        SHA256

        5bc02e7ca6900aa3aa079dab377946284eac931c6269737fc5609a7da7efcd0a

        SHA512

        df008703a06d1264fcb923c56b3091ba519db4af6c25585dc473b47b39c6779dda2447f75a60f66c1427c245525f69a2577ecc569d603705d7d674b00a5b784e

        Download Submit

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

        13KB

        MD5

        66ef18d3dab3f4bb67685e21aceb4b60

        SHA1

        1d18f3cb44a88f1687e907dffa97029a734c814d

        SHA256

        d08e11e3186d708c5cefec1ef72ed20c4bbf479441822fe9d1da5c04845089a5

        SHA512

        f72b5e3de5c6faa1c81bf4eae0245268e621b62387d03cb57409604ae587cecfb26a84033312ddbd2c4d38372cd8defc054a6836025e11d72f8abaf313aa5f88

        Download Submit

      • \Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
        Filesize

        4.7MB

        MD5

        61bffb5f57ad12f83ab64b7181829b34

        SHA1

        945d94fef51e0db76c2fd95ee22ed2767be0fe0b

        SHA256

        1dd0dd35e4158f95765ee6639f217df03a0a19e624e020dba609268c08a13846

        SHA512

        e569639d3bb81a7b3bd46484ff4b8065d7fd15df416602d825443b2b17d8c0c59500fb6516118e7a65ea9fdd9e4be238f0319577fa44c114eaca18b0334ba521

        Download Submit

      • memory/1236-2900-0x0000000000400000-0x000000000056F000-memory.dmp

        Filesize

        1.4MB

        Download

      • memory/1236-2907-0x000000000A8C0000-0x000000000A8F4000-memory.dmp

        Filesize

        208KB

        Download

      • memory/1236-2-0x0000000000400000-0x000000000056F000-memory.dmp

        Filesize

        1.4MB

        Download

      • memory/1236-0-0x0000000000400000-0x000000000056F000-memory.dmp

        Filesize

        1.4MB

        Download

      • memory/1236-1-0x000000000A8C0000-0x000000000A8F4000-memory.dmp

        Filesize

        208KB

        Download

      • memory/2548-20271-0x0000000140000000-0x00000001405E8000-memory.dmp

        Filesize

        5.9MB

        Download

      • memory/2548-20272-0x0000000140000000-0x00000001405E8000-memory.dmp

        Filesize

        5.9MB

        Download

      • memory/2548-20273-0x0000000140000000-0x00000001405E8000-memory.dmp

        Filesize

        5.9MB

        Download

      • memory/2548-20275-0x0000000140000000-0x00000001405E8000-memory.dmp

        Filesize

        5.9MB

        Download

      • memory/2548-20277-0x0000000140000000-0x00000001405E8000-memory.dmp

        Filesize

        5.9MB

        Download

      • memory/2548-20274-0x0000000140000000-0x00000001405E8000-memory.dmp

        Filesize

        5.9MB

        Download

      • memory/3988-20265-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

        Download