Analysis

  • max time kernel
    90s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07/05/2024, 11:50

General

  • Target

    efed91ccf386c9b8115ab66e40af300619081cc033184d10f7f081a100445dad.exe

  • Size

    118KB

  • MD5

    bf58111f2bcc88887ccf6aa6b894bfe2

  • SHA1

    3b1983b94aa4fb41a84a641c9e78377e14003c49

  • SHA256

    efed91ccf386c9b8115ab66e40af300619081cc033184d10f7f081a100445dad

  • SHA512

    a5f0157593a5329aea24ff730115358d88809d22a4100ce52c99ffaad753c80e85e0c3647e1ad5a158b55448175c465ef06a80e22a9f733a4164a898974aef88

  • SSDEEP

    3072:P1V2YgODlGIrfQxwI8lXn0QvtECo0FSCRs:P1V/9GIrf2oXnNtECo0FP

Malware Config

Extracted

Family

redline

Botnet

5637482599

C2

https://pastebin.com/raw/NgsUAPya

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efed91ccf386c9b8115ab66e40af300619081cc033184d10f7f081a100445dad.exe
    "C:\Users\Admin\AppData\Local\Temp\efed91ccf386c9b8115ab66e40af300619081cc033184d10f7f081a100445dad.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3768
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4056

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/3768-0-0x000000007453E000-0x000000007453F000-memory.dmp

          Filesize

          4KB

        • memory/3768-1-0x0000000000590000-0x00000000005B4000-memory.dmp

          Filesize

          144KB

        • memory/3768-25-0x0000000074530000-0x0000000074CE1000-memory.dmp

          Filesize

          7.7MB

        • memory/3768-8-0x0000000074530000-0x0000000074CE1000-memory.dmp

          Filesize

          7.7MB

        • memory/4056-14-0x0000000005A60000-0x0000000005A9C000-memory.dmp

          Filesize

          240KB

        • memory/4056-17-0x0000000006E00000-0x000000000732C000-memory.dmp

          Filesize

          5.2MB

        • memory/4056-10-0x0000000005B10000-0x0000000006128000-memory.dmp

          Filesize

          6.1MB

        • memory/4056-11-0x0000000005590000-0x00000000055A2000-memory.dmp

          Filesize

          72KB

        • memory/4056-12-0x00000000056C0000-0x00000000057CA000-memory.dmp

          Filesize

          1.0MB

        • memory/4056-13-0x0000000074530000-0x0000000074CE1000-memory.dmp

          Filesize

          7.7MB

        • memory/4056-7-0x0000000004FF0000-0x0000000005056000-memory.dmp

          Filesize

          408KB

        • memory/4056-15-0x0000000005AA0000-0x0000000005AEC000-memory.dmp

          Filesize

          304KB

        • memory/4056-16-0x0000000006700000-0x00000000068C2000-memory.dmp

          Filesize

          1.8MB

        • memory/4056-9-0x0000000074530000-0x0000000074CE1000-memory.dmp

          Filesize

          7.7MB

        • memory/4056-18-0x00000000078E0000-0x0000000007E86000-memory.dmp

          Filesize

          5.6MB

        • memory/4056-19-0x0000000006A70000-0x0000000006B02000-memory.dmp

          Filesize

          584KB

        • memory/4056-20-0x0000000006950000-0x00000000069C6000-memory.dmp

          Filesize

          472KB

        • memory/4056-21-0x0000000006900000-0x000000000691E000-memory.dmp

          Filesize

          120KB

        • memory/4056-22-0x0000000006CC0000-0x0000000006D10000-memory.dmp

          Filesize

          320KB

        • memory/4056-24-0x0000000074530000-0x0000000074CE1000-memory.dmp

          Filesize

          7.7MB

        • memory/4056-4-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB