Analysis

  • max time kernel
    41s
  • max time network
    102s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    30-06-2020 13:36

General

  • Target

    cc5c3d6512bbc0e90d670e8a61481ca1.exe

  • Size

    580KB

  • MD5

    cc5c3d6512bbc0e90d670e8a61481ca1

  • SHA1

    cd7a8e51b413de2343aac98971d37e6363863de4

  • SHA256

    bf97fab7ccc6d55f68b6563e8c68541f4b8db1cbcb841dce67663d9e4d7938b1

  • SHA512

    bdc5719449433ea8a9d0066d900f843b66e4817bbe893a99a798cc57d11ad0ef23f34c6b6382c4d9fc76d140a51e5da3d1167ba60940234b927fdd2eb3270662

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 - 15:36:16 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 (401 MB used) - Screen resolution: 1280x720 - Display devices: 0) Standard VGA Graphics Adapter ============

Signatures

  • Suspicious use of WriteProcessMemory 40 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Reads user/profile data of local email clients 2 TTPs

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

  • 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
  • RedLine

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Modifies system certificate store 2 TTPs 10 IoCs
  • Loads dropped DLL 12 IoCs
  • Checks for installed software on the system 1 TTPs 60 IoCs
  • Kills process with taskkill 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\cc5c3d6512bbc0e90d670e8a61481ca1.exe
    "C:\Users\Admin\AppData\Local\Temp\cc5c3d6512bbc0e90d670e8a61481ca1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Checks processor information in registry
    • Loads dropped DLL
    PID:1388
    • C:\Users\Admin\AppData\Roaming\indepopede\filingood.exe
      filingood.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      • Executes dropped EXE
      • Modifies system certificate store
      • Loads dropped DLL
      • Checks for installed software on the system
      PID:1364
      • 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:1544
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 10 /NOBREAK
          4⤵
          • Delays execution with timeout.exe
          PID:524
    • C:\Users\Admin\AppData\Roaming\indepopede\testoviyjuki.exe
      testoviyjuki.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      • Suspicious use of SetThreadContext
      • Executes dropped EXE
      PID:1952
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious behavior: EnumeratesProcesses
        • Modifies system certificate store
        • Checks for installed software on the system
        PID:1180
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C taskkill /F /PID 1180 && 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:1584
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /F /PID 1180
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            • Kills process with taskkill
            PID:1636
          • C:\Windows\SysWOW64\choice.exe
            choice /C Y /N /D Y /T 3
            5⤵
              PID:1588

    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/524-22-0x0000000000000000-mapping.dmp
    • memory/1180-33-0x0000000000400000-0x000000000042C000-memory.dmp
      Filesize

      176KB

    • memory/1180-36-0x0000000000400000-0x000000000042C000-memory.dmp
      Filesize

      176KB

    • memory/1180-35-0x0000000000400000-0x000000000042C000-memory.dmp
      Filesize

      176KB

    • memory/1180-34-0x0000000000426DCE-mapping.dmp
    • memory/1364-10-0x000000000458A000-0x000000000458B000-memory.dmp
      Filesize

      4KB

    • memory/1364-11-0x0000000004670000-0x0000000004681000-memory.dmp
      Filesize

      68KB

    • memory/1364-8-0x0000000000000000-mapping.dmp
    • memory/1388-1-0x0000000004470000-0x0000000004481000-memory.dmp
      Filesize

      68KB

    • memory/1388-0-0x0000000004259000-0x000000000425A000-memory.dmp
      Filesize

      4KB

    • memory/1544-21-0x0000000000000000-mapping.dmp
    • memory/1584-40-0x0000000000000000-mapping.dmp
    • memory/1588-42-0x0000000000000000-mapping.dmp
    • memory/1636-41-0x0000000000000000-mapping.dmp
    • memory/1952-30-0x0000000008840020-0x00000000088FD820-disk.dmp
      Filesize

      758KB

    • memory/1952-25-0x0000000000000000-mapping.dmp
    • memory/1952-29-0x0000000005CC0000-0x0000000005CD1000-memory.dmp
      Filesize

      68KB

    • memory/1952-28-0x0000000004400000-0x0000000004411000-memory.dmp
      Filesize

      68KB

    • memory/1952-27-0x00000000002C0000-0x000000000038B000-memory.dmp
      Filesize

      812KB