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Analysis

  • max time kernel
    40s
  • max time network
    38s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    12/04/2021, 06:37

General

  • Target

    setup(1).exe

  • Size

    266KB

  • MD5

    dcd1e195ad1945389bc4d87dae82a164

  • SHA1

    7c1aed93371a31888752afd9bfc7d76379940732

  • SHA256

    ac2c2e2b67deca31d1f61ff956ef8b676fa733da9c682f26fbda28b46c6e6f63

  • SHA512

    52f2de83f7286655a1cb964fa76704ede980d875571d424689253757c6ec9491d25402ce9124ec825f15e3e62f4bb1b43b2675c49757b1c00e179d69a03e345b

Malware Config

Extracted

Family

raccoon

Botnet

16992cd33145ccbb6feeacb4e84400a56448fa14

Attributes
  • url4cnc

    https://telete.in/baudemars

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 15 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.

  • Reads user/profile data of web browsers 2 TTPs

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

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup(1).exe
    "C:\Users\Admin\AppData\Local\Temp\setup(1).exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1660
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{dX0P-58zQo-wi1a-fhX9q}\99708381504.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:368
      • C:\Users\Admin\AppData\Local\Temp\{dX0P-58zQo-wi1a-fhX9q}\99708381504.exe
        "C:\Users\Admin\AppData\Local\Temp\{dX0P-58zQo-wi1a-fhX9q}\99708381504.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:632
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\{dX0P-58zQo-wi1a-fhX9q}\99708381504.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1240
          • C:\Windows\SysWOW64\timeout.exe
            timeout /T 10 /NOBREAK
            5⤵
            • Delays execution with timeout.exe
            PID:1740
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{dX0P-58zQo-wi1a-fhX9q}\69474879166.exe" /mix
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1444
      • C:\Users\Admin\AppData\Local\Temp\{dX0P-58zQo-wi1a-fhX9q}\69474879166.exe
        "C:\Users\Admin\AppData\Local\Temp\{dX0P-58zQo-wi1a-fhX9q}\69474879166.exe" /mix
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        PID:980
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "setup(1).exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\setup(1).exe" & exit
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "setup(1).exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1616

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/632-73-0x0000000000400000-0x0000000003DED000-memory.dmp

    Filesize

    57.9MB

  • memory/632-72-0x0000000004350000-0x0000000007D3D000-memory.dmp

    Filesize

    57.9MB

  • memory/980-89-0x0000000000400000-0x0000000003E1A000-memory.dmp

    Filesize

    58.1MB

  • memory/980-88-0x0000000004070000-0x000000000414F000-memory.dmp

    Filesize

    892KB

  • memory/1660-59-0x0000000075F21000-0x0000000075F23000-memory.dmp

    Filesize

    8KB

  • memory/1660-61-0x0000000000400000-0x0000000003DA4000-memory.dmp

    Filesize

    57.6MB

  • memory/1660-60-0x00000000003C0000-0x00000000003EE000-memory.dmp

    Filesize

    184KB