Overview

overview

10

Static

static

10

2024-08-21...op.exe

windows7-x64

10

2024-08-21...op.exe

windows10-2004-x64

10

Resubmissions

21-08-2024 02:11

240821-cmsy9syfrn 10

21-08-2024 02:11

240821-cmgagavfmg 10

21-08-2024 02:09

240821-ck9t1averb 10

21-08-2024 01:15

240821-bmk3zsshke 10

21-08-2024 01:12

240821-bkkdnssgkf 10

Analysis

  • max time kernel
    1741s
  • max time network
    1473s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-08-2024 01:15

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General

  • Target

    2024-08-21_d2928a874344bd310125566d09f4ffcc_makop.exe

  • Size

    42KB

  • MD5

    d2928a874344bd310125566d09f4ffcc

  • SHA1

    41070cb3d688c30ca7b95957e48eaa577e8a027d

  • SHA256

    f9dcdbe1929dd4606138f9c77b95c144acd4d711fd372f7bb075b8aa61a83b62

  • SHA512

    90a8f22346a1f08f91313f66f03cfd0da228b656f5a0dcd39db0497c300a5ad37e93a62ad78ed82aab0c2351c3e8af9f8923b9a10b06d527a0c6439c8a6b6629

  • SSDEEP

    768:cO1oR/dUVS1RzK4wbs+D/SIJX+ZZ1SQQwZuIOPzDLNIUe61Akojk1q4:clgS1FKnDtkuImLqUe6h7

Score
10/10
credential_accessdefense_evasiondiscoveryexecutionimpactransomwarespywarestealer

Malware Config

Extracted

Path

C:\Program Files\Common Files\microsoft shared\ClickToRun\+README-WARNING+.txt

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted. The file structure was not damaged, we did everything possible so that this could not happen. .2. Q: How to recover files? A: If you wish to decrypt your files you will need to pay us. .3. Q: What about guarantees? A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests. To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee. .4. Q: How to contact with you? A: You can write us to our mailboxes: [email protected] or [email protected] .5. Q: How will the decryption process proceed after payment? A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files. .6. Q: If I don�t want to pay bad people like you? A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money. :::BEWARE::: DON'T try to change encrypted files by yourself! If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files! Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (8108) files with added filename extension

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

    ransomware
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Drops file in System32 directory 6 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Interacts with shadow copies 3 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies data under HKEY_USERS 64 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • 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\2024-08-21_d2928a874344bd310125566d09f4ffcc_makop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-21_d2928a874344bd310125566d09f4ffcc_makop.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\Users\Admin\AppData\Local\Temp\2024-08-21_d2928a874344bd310125566d09f4ffcc_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-08-21_d2928a874344bd310125566d09f4ffcc_makop.exe" n2704
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4792
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3704
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2552
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        3⤵
        • Deletes backup catalog
        PID:4188
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1508
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ping 1.1.1.1 -n 5 & fsutil file setZeroData offset=0 length=131072 "C:\Users\Admin\AppData\Local\Temp\2024-08-21_d2928a874344bd310125566d09f4ffcc_makop.exe" & del /q /f "C:\Users\Admin\AppData\Local\Temp\2024-08-21_d2928a874344bd310125566d09f4ffcc_makop.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      PID:4748
      • C:\Windows\SysWOW64\PING.EXE
        ping 1.1.1.1 -n 5
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3976
      • C:\Windows\SysWOW64\fsutil.exe
        fsutil file setZeroData offset=0 length=131072 "C:\Users\Admin\AppData\Local\Temp\2024-08-21_d2928a874344bd310125566d09f4ffcc_makop.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4008
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1772
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2796
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1112
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1216
    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
      1⤵
      • Drops file in System32 directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:1412

    Network

    MITRE ATT&CK Enterprise v15

    Reconnaissance

    Resource Development

    Initial Access

    Execution

    Command and Scripting Interpreter

    1
    T1059

    Windows Management Instrumentation

    1
    T1047

    Persistence

    Privilege Escalation

    Defense Evasion

    Direct Volume Access

    1
    T1006

    Indicator Removal

    3
    T1070

    File Deletion

    3
    T1070.004

    Modify Registry

    1
    T1112

    Credential Access

    Credentials from Password Stores

    1
    T1555

    Windows Credential Manager

    1
    T1555.004

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Browser Information Discovery

    1
    T1217

    Peripheral Device Discovery

    1
    T1120

    Query Registry

    4
    T1012

    Remote System Discovery

    1
    T1018

    System Information Discovery

    3
    T1082

    System Location Discovery

    1
    T1614

    System Language Discovery

    1
    T1614.001

    System Network Configuration Discovery

    1
    T1016

    Internet Connection Discovery

    1
    T1016.001

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Command and Control

    Web Service

    1
    T1102

    Exfiltration

    Impact

    Defacement

    1
    T1491

    Inhibit System Recovery

    3
    T1490

    Replay Monitor

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    Downloads

    • C:\Program Files\Common Files\microsoft shared\ClickToRun\+README-WARNING+.txt
      Filesize

      1KB

      MD5

      3c8c6d58f933ab37627bdb1254f32002

      SHA1

      a4e343ce17691b68a897032302513eeb79449d30

      SHA256

      40dce02f63e75e4f2af498c9083116e71e58600ddaa9e3d8f593b13684f15d74

      SHA512

      00c1e6a4406a8edacb2f854cdf34b7cbea198baa702b6a8e92fdd057b3ce37fa562729a3bccc8ffa7c2db1fe65e7e6d1f0dfdc98da96dd1275581cc6b36eb720

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