Analysis

  • max time kernel
    140s
  • max time network
    85s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    30-06-2020 13:33

General

  • Target

    ff47b14fae7af6baf17ccc151a0196c9.exe

  • Size

    589KB

  • MD5

    ff47b14fae7af6baf17ccc151a0196c9

  • SHA1

    48b087b25dec9ed2574713d786e46c47bb156a3b

  • SHA256

    4911fa1954ae21c905977d4a341a7984948cad6c2fd3269871d328386a0f3344

  • SHA512

    d8d35538eaaabef971fdeeac146e3f7293330aadac799227b3193dc338101783a564acab977ae475e9ab2d15c10da0beed5490352555c93f5a375eb0eacc189b

Malware Config

Extracted

Path

C:\Users\Admin\AppData\LocalLow\machineinfo.txt

Family

raccoon

Ransom Note
[Raccoon Stealer] - v1.5.11 Release Build compiled on Fri May 8 14:39:40 2020 Launched at: 2020.06.30 - 15:33:16 GMT Bot_ID: 58B98E61-8F0C-4164-9CA8-CBDF20304A02_Admin Running on a desktop =R=A=C=C=O=O=N= System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.13 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: DJRWGDLZ - Username: Admin - Windows version: NT 6.1 - Product name: Windows 7 Professional - System arch: x64 - CPU: Persocon Processor 2.5+ (2 cores) - RAM: 2047 MB (403 MB used) - Screen resolution: 1280x720 - Display devices: 0) Standard VGA Graphics Adapter ============

Signatures

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Loads dropped DLL 12 IoCs
  • Executes dropped EXE 2 IoCs
  • Raccoon log file 1 IoCs

    Detects a log file produced by the Raccoon Stealer.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 10 IoCs
  • RedLine

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks for installed software on the system 1 TTPs 60 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Delays execution with timeout.exe 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of WriteProcessMemory 40 IoCs
  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Kills process with taskkill 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff47b14fae7af6baf17ccc151a0196c9.exe
    "C:\Users\Admin\AppData\Local\Temp\ff47b14fae7af6baf17ccc151a0196c9.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1092
    • C:\Users\Admin\AppData\Roaming\indepopede\filingood.exe
      filingood.exe
      2⤵
      • Loads dropped DLL
      • Executes dropped EXE
      • Modifies system certificate store
      • Checks for installed software on the system
      • Suspicious use of WriteProcessMemory
      PID:1136
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Roaming\indepopede\filingood.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1180
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 10 /NOBREAK
          4⤵
          • Delays execution with timeout.exe
          PID:1124
    • C:\Users\Admin\AppData\Roaming\indepopede\testoviyjuki.exe
      testoviyjuki.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1936
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious behavior: EnumeratesProcesses
        • Modifies system certificate store
        • Checks for installed software on the system
        • Suspicious use of WriteProcessMemory
        PID:612
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C taskkill /F /PID 612 && choice /C Y /N /D Y /T 3 & Del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1900
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /F /PID 612
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            • Kills process with taskkill
            PID:1884
          • C:\Windows\SysWOW64\choice.exe
            choice /C Y /N /D Y /T 3
            5⤵
              PID:1852

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Install Root Certificate

    1
    T1130

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    2
    T1005

    Command and Control

    Web Service

    1
    T1102

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    • C:\Users\Admin\AppData\Roaming\indepopede\filingood.exe
    • C:\Users\Admin\AppData\Roaming\indepopede\filingood.exe
    • C:\Users\Admin\AppData\Roaming\indepopede\testoviyjuki.exe
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\mozglue.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\msvcp140.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\nss3.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\softokn3.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\vcruntime140.dll
    • \Users\Admin\AppData\LocalLow\sqlite3.dll
    • \Users\Admin\AppData\Roaming\indepopede\filingood.exe
    • \Users\Admin\AppData\Roaming\indepopede\filingood.exe
    • \Users\Admin\AppData\Roaming\indepopede\testoviyjuki.exe
    • \Users\Admin\AppData\Roaming\indepopede\testoviyjuki.exe
    • memory/612-29-0x0000000000400000-0x000000000042C000-memory.dmp
      Filesize

      176KB

    • memory/612-32-0x0000000000400000-0x000000000042C000-memory.dmp
      Filesize

      176KB

    • memory/612-31-0x0000000000400000-0x000000000042C000-memory.dmp
      Filesize

      176KB

    • memory/612-30-0x0000000000426DCE-mapping.dmp
    • memory/1092-1-0x0000000004200000-0x0000000004211000-memory.dmp
      Filesize

      68KB

    • memory/1124-28-0x0000000000000000-mapping.dmp
    • memory/1136-4-0x0000000000000000-mapping.dmp
    • memory/1136-7-0x0000000004360000-0x0000000004371000-memory.dmp
      Filesize

      68KB

    • memory/1136-6-0x00000000002CA000-0x00000000002CB000-memory.dmp
      Filesize

      4KB

    • memory/1180-27-0x0000000000000000-mapping.dmp
    • memory/1852-38-0x0000000000000000-mapping.dmp
    • memory/1884-37-0x0000000000000000-mapping.dmp
    • memory/1900-36-0x0000000000000000-mapping.dmp
    • memory/1936-24-0x0000000008800020-0x00000000088BD820-disk.dmp
      Filesize

      758KB

    • memory/1936-23-0x0000000005E40000-0x0000000005E51000-memory.dmp
      Filesize

      68KB

    • memory/1936-22-0x0000000004420000-0x0000000004431000-memory.dmp
      Filesize

      68KB

    • memory/1936-21-0x0000000004180000-0x000000000424B000-memory.dmp
      Filesize

      812KB

    • memory/1936-19-0x0000000000000000-mapping.dmp