Overview

overview

10

Static

static

10

2024-08-10...de.exe

windows7-x64

10

2024-08-10...de.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    99s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/08/2024, 02:35

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General

  • Target
    2024-08-10_ef531da468065fc649d072824c9a76e2_darkside.exe
  • Size 146KB
  • Sample240810-c265fawdkd
  • SHA256 d12c35c8825aad5b09855a89102236774ca847a7559132c4e9d92aaf69772815
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\xgU6NOijB.README.txt

Ransom Note
  • !!! ALL YOUR FILES ARE ENCRYPTED!!! All your files, documents, photos, databases and other important files are encrypted. The only way to recover your files is to use a decryptor. To get the decryptor, write to us by mail or telegram, specify the ID of the encrypted files in the letter: Email: [email protected] Telegram: https://t.me/bit_decryptor Warning. * Do not rename encrypted files. * Do not attempt to decrypt data using third party software as this may result in permanent data loss. * Do not contact other people, only we can help you and recover your data. Your personal decryption ID: 8F1D8AE5590CFFAA7CAF47ED4DB2283A
URLs

  • https://t.me/bit_decryptor

Signatures

  • Renames multiple (599) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-10_ef531da468065fc649d072824c9a76e2_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-10_ef531da468065fc649d072824c9a76e2_darkside.exe"
    1⤵
    • Drops desktop.ini file(s)
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1396
    • C:\ProgramData\705D.tmp
      "C:\ProgramData\705D.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4312
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\705D.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4804

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        CCCCCCCCCCC
        • Path C:\$Recycle.Bin\S-1-5-21-2392887640-1187051047-2909758433-1000\CCCCCCCCCCC
        • Size 129B
        • SHA256 5f80bd70c9e5624653a7cc17e49dbba7a30acfb2a789502a423a84e018dcdb42
        • MD5 SHA1 SHA512
        Submit Download

        705D.tmp
        • Path C:\ProgramData\705D.tmp
        • Size 14KB
        • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
        • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
        • Size 146KB
        • SHA256 9544d36c0116218371ce0f5f24764fc55bc9c8fe2894ee01868080ca603413bb
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        xgU6NOijB.README.txt
        • Path C:\xgU6NOijB.README.txt
        • Size 659B
        • SHA256 fb9f29b6168e5095f9faa8db50a0c3e21640fc5931cee5c275de7d4c25d84fe4
        • MD5 SHA1 SHA512
        Submit Download

        DDDDDDDDDDD
        • Path F:\$RECYCLE.BIN\S-1-5-21-2392887640-1187051047-2909758433-1000\DDDDDDDDDDD
        • Size 129B
        • SHA256 5c35412cfc697c6f4f08a6991f7583b1d053d1a325bf3ea780e2aaa605e4e988
        • MD5 SHA1 SHA512
        Submit Download

        memory/1396-0-0x0000000003330000-0x0000000003340000-memory.dmp
        Download

        memory/1396-2-0x0000000003330000-0x0000000003340000-memory.dmp
        Download

        memory/1396-1-0x0000000003330000-0x0000000003340000-memory.dmp
        Download

        memory/4312-2784-0x000000007FE20000-0x000000007FE21000-memory.dmp
        Download

        memory/4312-2783-0x0000000002400000-0x0000000002410000-memory.dmp
        Download

        memory/4312-2782-0x0000000002400000-0x0000000002410000-memory.dmp
        Download

        memory/4312-2781-0x000000007FE40000-0x000000007FE41000-memory.dmp
        Download

        memory/4312-2785-0x000000007FDC0000-0x000000007FDC1000-memory.dmp
        Download

        memory/4312-2814-0x000000007FDE0000-0x000000007FDE1000-memory.dmp
        Download

        memory/4312-2815-0x000000007FE00000-0x000000007FE01000-memory.dmp
        Download