Analysis

  • max time kernel
    98s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/07/2022, 05:45

General

  • Target

    installer.exe

  • Size

    15.5MB

  • MD5

    c35a4089299c96b97eb1257c9cfeeb7d

  • SHA1

    dbfbfec2fb507ab71cfa3cf25d0016a3e233a2a3

  • SHA256

    86c18ece485bd831afd99d3306c5a7944d34f3b36974458d390a76d7280d416b

  • SHA512

    fa0352da4f4b61aed28c915f5b0e55bc135a8773e229f38fb5b979d74be4749720724123944749bb1186d0f6edd44f4103e42818acddcb3006f05e484d18ec92

Malware Config

Extracted

Family

raccoon

Botnet

f0f70bdf46d27a5d3e549f9105928f1a

C2

http://87.120.37.15/

rc4.plain

Signatures

  • Raccoon

    Raccoon is an infostealer written in C++ and first seen in 2019.

  • Raccoon Stealer payload 5 IoCs
  • YTStealer

    YTStealer is a malware designed to steal YouTube authentication cookies.

  • YTStealer payload 3 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • UPX packed file 5 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 3 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.

  • AutoIT Executable 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\installer.exe
    "C:\Users\Admin\AppData\Local\Temp\installer.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\ProgramData\ebrfsdf.exe_c8ulm.exe
      "C:\ProgramData\ebrfsdf.exe_c8ulm.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Users\Admin\AppData\Local\Temp\f7457208.exe
        "C:\Users\Admin\AppData\Local\Temp\f7457208.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2596
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Local\Temp\f7457208.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3380
          • C:\Windows\system32\choice.exe
            choice /C Y /N /D Y /T 0
            5⤵
              PID:4904

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\ebrfsdf.exe_c8ulm.exe

      Filesize

      6.8MB

      MD5

      a64285b7c5e9aacd02714b59d65eacd7

      SHA1

      dd6042010ce4f8bc26843198c7c294b3f82fd7b9

      SHA256

      35ceeba35dd9cbefcd61e1d13df4d1f6b68047999501da3102966a42dbbc4c38

      SHA512

      83a1bd168b47d0821eba7ee24ed821afdba0eda6ebcfbd7561c2691eb5d7d8660fefd056728ad63bcf09824bed78f8f19d601a68dfcfd8c7eac917d0d3298c9d

    • C:\ProgramData\ebrfsdf.exe_c8ulm.exe

      Filesize

      6.8MB

      MD5

      a64285b7c5e9aacd02714b59d65eacd7

      SHA1

      dd6042010ce4f8bc26843198c7c294b3f82fd7b9

      SHA256

      35ceeba35dd9cbefcd61e1d13df4d1f6b68047999501da3102966a42dbbc4c38

      SHA512

      83a1bd168b47d0821eba7ee24ed821afdba0eda6ebcfbd7561c2691eb5d7d8660fefd056728ad63bcf09824bed78f8f19d601a68dfcfd8c7eac917d0d3298c9d

    • C:\Users\Admin\AppData\LocalLow\mozglue.dll

      Filesize

      612KB

      MD5

      f07d9977430e762b563eaadc2b94bbfa

      SHA1

      da0a05b2b8d269fb73558dfcf0ed5c167f6d3877

      SHA256

      4191faf7e5eb105a0f4c5c6ed3e9e9c71014e8aa39bbee313bc92d1411e9e862

      SHA512

      6afd512e4099643bba3fc7700dd72744156b78b7bda10263ba1f8571d1e282133a433215a9222a7799f9824f244a2bc80c2816a62de1497017a4b26d562b7eaf

    • C:\Users\Admin\AppData\LocalLow\nss3.dll

      Filesize

      1.9MB

      MD5

      f67d08e8c02574cbc2f1122c53bfb976

      SHA1

      6522992957e7e4d074947cad63189f308a80fcf2

      SHA256

      c65b7afb05ee2b2687e6280594019068c3d3829182dfe8604ce4adf2116cc46e

      SHA512

      2e9d0a211d2b085514f181852fae6e7ca6aed4d29f396348bedb59c556e39621810a9a74671566a49e126ec73a60d0f781fa9085eb407df1eefd942c18853be5

    • C:\Users\Admin\AppData\LocalLow\sqlite3.dll

      Filesize

      1.0MB

      MD5

      dbf4f8dcefb8056dc6bae4b67ff810ce

      SHA1

      bbac1dd8a07c6069415c04b62747d794736d0689

      SHA256

      47b64311719000fa8c432165a0fdcdfed735d5b54977b052de915b1cbbbf9d68

      SHA512

      b572ca2f2e4a5cc93e4fcc7a18c0ae6df888aa4c55bc7da591e316927a4b5cfcbdda6e60018950be891ff3b26f470cc5cce34d217c2d35074322ab84c32a25d1

    • C:\Users\Admin\AppData\Local\Temp\f7457208.exe

      Filesize

      4.0MB

      MD5

      c24ba1762d2da4b568a2e26f22f9c64f

      SHA1

      80109682d40260506b1c1b27aa0552c37c8b048c

      SHA256

      a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3

      SHA512

      7dd08ee1a655cc7dc2f4090a99f572b2e5d733e5533fbfa372ad2b26a16df80165d53b403e03520551fdf6ef3884ab261e02a4e6e56799dac57d9c19c2cdb6fc

    • C:\Users\Admin\AppData\Local\Temp\f7457208.exe

      Filesize

      4.0MB

      MD5

      c24ba1762d2da4b568a2e26f22f9c64f

      SHA1

      80109682d40260506b1c1b27aa0552c37c8b048c

      SHA256

      a3399562b281d5dd39a742eebe7a9de6ae46360f6226c4e005f31e1d73c5f7e3

      SHA512

      7dd08ee1a655cc7dc2f4090a99f572b2e5d733e5533fbfa372ad2b26a16df80165d53b403e03520551fdf6ef3884ab261e02a4e6e56799dac57d9c19c2cdb6fc

    • memory/2036-146-0x0000000000DA0000-0x000000000184C000-memory.dmp

      Filesize

      10.7MB

    • memory/2036-142-0x0000000000DA0000-0x000000000184C000-memory.dmp

      Filesize

      10.7MB

    • memory/2036-150-0x0000000000DA0000-0x000000000184C000-memory.dmp

      Filesize

      10.7MB

    • memory/2036-139-0x0000000000DA0000-0x000000000184C000-memory.dmp

      Filesize

      10.7MB

    • memory/2036-140-0x0000000000DA0000-0x000000000184C000-memory.dmp

      Filesize

      10.7MB

    • memory/2596-151-0x00000000007B0000-0x0000000001588000-memory.dmp

      Filesize

      13.8MB

    • memory/2596-152-0x00000000007B0000-0x0000000001588000-memory.dmp

      Filesize

      13.8MB

    • memory/2596-154-0x00000000007B0000-0x0000000001588000-memory.dmp

      Filesize

      13.8MB

    • memory/4624-130-0x0000000000230000-0x0000000001DA1000-memory.dmp

      Filesize

      27.4MB

    • memory/4624-134-0x0000000000230000-0x0000000001DA1000-memory.dmp

      Filesize

      27.4MB

    • memory/4624-138-0x0000000000230000-0x0000000001DA1000-memory.dmp

      Filesize

      27.4MB

    • memory/4624-131-0x0000000000230000-0x0000000001DA1000-memory.dmp

      Filesize

      27.4MB