Analysis

  • max time kernel
    81s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13/11/2024, 08:29

General

  • Target

    8c416e1ed3e04818310a1921739a71e97fea30372e5e7cc2c9e8200b729c7d7fN.exe

  • Size

    384KB

  • MD5

    dac2d5aaddf54e79c2e0b66bf53b43e0

  • SHA1

    2635895f5c26b6310dc678ab9127fa49114a7ea8

  • SHA256

    8c416e1ed3e04818310a1921739a71e97fea30372e5e7cc2c9e8200b729c7d7f

  • SHA512

    2d94c7af70f2e513ad4b5f990e3930d1e886b3476a81851557aaf9cc6ad9445bfc27088169ce398dc9482aff2c23c1d5bd53e1934e57e379fd4a2665362c30ba

  • SSDEEP

    6144:QEmpGOgosBJqf7dkzIe/pDCdGyZ6YugQdjGG1wsKm6eBgdQbkoKTBEAz/6DG1ETl:sL3d7dIDpDSGyXu1jGG1wsGeBgRTGAzG

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 12 IoCs
  • Drops file in System32 directory 12 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\8c416e1ed3e04818310a1921739a71e97fea30372e5e7cc2c9e8200b729c7d7fN.exe
    "C:\Users\Admin\AppData\Local\Temp\8c416e1ed3e04818310a1921739a71e97fea30372e5e7cc2c9e8200b729c7d7fN.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:3044
    • C:\Windows\SysWOW64\Khnapkjg.exe
      C:\Windows\system32\Khnapkjg.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:1636
      • C:\Windows\SysWOW64\Kipmhc32.exe
        C:\Windows\system32\Kipmhc32.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:2740
        • C:\Windows\SysWOW64\Lmmfnb32.exe
          C:\Windows\system32\Lmmfnb32.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:2760
          • C:\Windows\SysWOW64\Lepaccmo.exe
            C:\Windows\system32\Lepaccmo.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2888
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2888 -s 140
              6⤵
              • Loads dropped DLL
              • Program crash
              PID:2776

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\Kipmhc32.exe

          Filesize

          384KB

          MD5

          b6d8a1464658f9536d76d5305add2622

          SHA1

          f5e807449d7617169dd25d2f8b4807729fd6129c

          SHA256

          a38a6cb432a2a593a189842ef0282143a5bcd02453a8f3a3f9919da1a3a0ee46

          SHA512

          0ab6619c7e2c1ae70e978779d828247dafa787af1980f080b9776d6df4a50ddd8c2ed957ba4c2fd6c6544353fe491635e1e28590d31c25ad20dd2de0da037409

        • \Windows\SysWOW64\Khnapkjg.exe

          Filesize

          384KB

          MD5

          3d602280e6e5a09ad9b6b92e341a5522

          SHA1

          fcd59463d0dd11db5d9825f52b6cf6b985d0c89d

          SHA256

          698ab781981927c5bfeee10b06c91febd6d26ddce4089578bc7f01e1798ed164

          SHA512

          68629d220a20ff3b7c38ed516486982d5ea719dcca9eceff989cacf68c09098e7dcde95d80560db3d339bf4a99305cad00889f1263c09c48cb25cb7dccebfdef

        • \Windows\SysWOW64\Lepaccmo.exe

          Filesize

          384KB

          MD5

          c7b29c862d65d68a3a019dfc29523b26

          SHA1

          d1eb6be275bb9fbbc047950843183c1eccd10595

          SHA256

          7d948daa8ea2887a87ece353464799bf02fbe30a6c9bdbe1cb33380df5c1600a

          SHA512

          17469da03f17549ce6145b2eda8712265ed23562b18124dd8a67e66e40fa710974270df19d10fe45f372afba6634663645fdc895519077b822c637ff578fd2d0

        • \Windows\SysWOW64\Lmmfnb32.exe

          Filesize

          384KB

          MD5

          f837de2f0304847586dad0b119d430be

          SHA1

          046571fc70c48bcc5847daf990c7cc3660f5d22a

          SHA256

          2ba44901c5de9696ece414cca2d7b0c861bac29a6ca0d61324ec2603b1db3665

          SHA512

          15e14fe76773292efc278871b873913b65b19abbaceef41b55607be6b8c9c962c0c27bcfe0ac494c017d266d3d26bca5ae8169153e21842d4afaed017778d310

        • memory/1636-14-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/1636-63-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2740-39-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2740-43-0x0000000000220000-0x0000000000254000-memory.dmp

          Filesize

          208KB

        • memory/2760-53-0x0000000000220000-0x0000000000254000-memory.dmp

          Filesize

          208KB

        • memory/2760-67-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2760-46-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/2760-54-0x0000000000220000-0x0000000000254000-memory.dmp

          Filesize

          208KB

        • memory/2888-56-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/3044-0-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/3044-11-0x0000000000220000-0x0000000000254000-memory.dmp

          Filesize

          208KB

        • memory/3044-12-0x0000000000220000-0x0000000000254000-memory.dmp

          Filesize

          208KB

        • memory/3044-64-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB