Analysis

  • max time kernel
    119s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    12/11/2024, 12:11

General

  • Target

    544f880f272b96be85cbeb060473a950f4ffc97382cf202f7066faf55c1aa09eN.exe

  • Size

    144KB

  • MD5

    2ba51d4765d738b5c59c21b41dfd325d

  • SHA1

    df484001e8c903ea8b8f71a3e81af48291bbd19b

  • SHA256

    514d7b3867e25671e7a712c8001ed5f2bad3af24aedf25cbfa025d339e2d8ba0

  • SHA512

    1f40c9656c646172162bafce736b726c2a9b40ef8d1fed3ecb0413038f1723d7a0e9e920680d69b439268b9ec3f27d4bc63f5008ec54a552dbb0deb95c7d3f91

  • SSDEEP

    3072:t6aXuhpHfpvM4hhqBRzWwdlWLhR1zdH13+EE+RaZ6r+GDZnBcVx:cfxvMdH2b1zd5IF6rfBBcVx

Malware Config

Extracted

Family

berbew

C2

http://f/wcmd.htm

http://f/ppslog.php

http://f/piplog.php?%s:%i:%i:%s:%09u:%i:%02d:%02d:%02d

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 8 IoCs
  • Berbew

    Berbew is a backdoor written in C++.

  • Berbew family
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 11 IoCs
  • Drops file in System32 directory 14 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 15 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\544f880f272b96be85cbeb060473a950f4ffc97382cf202f7066faf55c1aa09eN.exe
    "C:\Users\Admin\AppData\Local\Temp\544f880f272b96be85cbeb060473a950f4ffc97382cf202f7066faf55c1aa09eN.exe"
    1⤵
    • Adds autorun key to be loaded by Explorer.exe on startup
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\Windows\SysWOW64\Cgcnghpl.exe
      C:\Windows\system32\Cgcnghpl.exe
      2⤵
      • Adds autorun key to be loaded by Explorer.exe on startup
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\Cnmfdb32.exe
        C:\Windows\system32\Cnmfdb32.exe
        3⤵
        • Adds autorun key to be loaded by Explorer.exe on startup
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2196
        • C:\Windows\SysWOW64\Cmpgpond.exe
          C:\Windows\system32\Cmpgpond.exe
          4⤵
          • Adds autorun key to be loaded by Explorer.exe on startup
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:2136
          • C:\Windows\SysWOW64\Dpapaj32.exe
            C:\Windows\system32\Dpapaj32.exe
            5⤵
            • Executes dropped EXE
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2592
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2592 -s 144
              6⤵
              • Loads dropped DLL
              • Program crash
              PID:2636

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\Cgcnghpl.exe

          Filesize

          144KB

          MD5

          a5ba68452eb6a00922bc4ce00babc68a

          SHA1

          d6471eb50081cdeaa91cae66074b49a252bbbc9d

          SHA256

          8bcf78ffd91ea1d0dd85452346e1a450113c7e06184133b47477ac46786dcdd9

          SHA512

          dab490f3b4aeb023e03b46577761d8f6aa0ed679c52ae8e8dfa4066f8f1d1e18a38e6e43d1198b3aae1364e477881dd90316f6bbcd47e028688f4b7a942be608

        • C:\Windows\SysWOW64\Cnmfdb32.exe

          Filesize

          144KB

          MD5

          d748f13f6a43c6a7432e40258a3ce24e

          SHA1

          8a9f64fcdd82b3ad4fdfe9a1c6f2aa8b787d40f8

          SHA256

          02640835030b65774bffb0ebdb41c35a0112dc257a89d261adc609f214aa4776

          SHA512

          5531fe6e230174609d0aa16f0d39e6e68085d563eb1a32d9366fe962b75b76eb01133efc85ea102635457e32ad0ce17b95a61df8b3efaa310e4ab0d560986e18

        • \Windows\SysWOW64\Cmpgpond.exe

          Filesize

          144KB

          MD5

          1cb2b9d2d84a34602738f54b758ecda3

          SHA1

          51c2b86d54034d5da42383ea8816a6dd39e6c627

          SHA256

          239f3911273c312c0eb93c1f5e0847dfe3c1cb231b87f5aaf7df2d7232200f9d

          SHA512

          4e5e9e80cb89970084cc0dd57ba6816bf2756e9bccccdf1adbd1a782ec0caa6ef5cccba6b0527242c9975157d3162e248e1cb26402d03c05f41836f89d0412d6

        • \Windows\SysWOW64\Dpapaj32.exe

          Filesize

          144KB

          MD5

          22667222fafb40389fedbdaa0ccb81e2

          SHA1

          da67a600e5df411801751518deffe8d327f306cd

          SHA256

          d8cb81594f4187bd3971a0d40d921265180842433b638f85cba526522f2c219e

          SHA512

          2db59ef7a605975521f2ca81430053011caefe73a0100d87fb99833789df24fecba30bcfd479a986827e96c590a870ae6688380bd0ded27982abf323186b286d

        • memory/1964-17-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/1964-66-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/1964-26-0x0000000000250000-0x0000000000284000-memory.dmp

          Filesize

          208KB

        • memory/2136-42-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2136-69-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2136-54-0x0000000000250000-0x0000000000284000-memory.dmp

          Filesize

          208KB

        • memory/2196-28-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2196-35-0x0000000000250000-0x0000000000284000-memory.dmp

          Filesize

          208KB

        • memory/2196-65-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2592-56-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2592-72-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2856-70-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2856-0-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2856-12-0x0000000000250000-0x0000000000284000-memory.dmp

          Filesize

          208KB

        • memory/2856-13-0x0000000000250000-0x0000000000284000-memory.dmp

          Filesize

          208KB