Analysis

  • max time kernel
    66s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13/10/2024, 02:39

General

  • Target

    bf24e092c15955c6d4e5339fecff26c07303fdab7a3c4e1f4203a882337f728c.exe

  • Size

    67KB

  • MD5

    cf8f3e9dcc095e1fa785b5f817fe0e3b

  • SHA1

    3daad6d1f676dd3c9a7989fb290f5686fd57602e

  • SHA256

    bf24e092c15955c6d4e5339fecff26c07303fdab7a3c4e1f4203a882337f728c

  • SHA512

    7da02268c3e3f9b5596b1ba5542210578da8800b91f8a9420d4afbe7399c857bab1036515895c507e3bedea374080de964b82d80d7b84c151d8442fcb0c6767f

  • SSDEEP

    1536:h1h38XZOF4Xv4cq/gJ3Hr8124sJifTduD4oTxwf:h1h3yZ06vi4Hr8124sJibdMTxwf

Malware Config

Extracted

Family

berbew

C2

http://tat-neftbank.ru/kkq.php

http://tat-neftbank.ru/wcmd.htm

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 14 IoCs
  • Berbew

    Berbew is a backdoor written in C++.

  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 18 IoCs
  • Drops file in System32 directory 21 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Modifies registry class 24 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf24e092c15955c6d4e5339fecff26c07303fdab7a3c4e1f4203a882337f728c.exe
    "C:\Users\Admin\AppData\Local\Temp\bf24e092c15955c6d4e5339fecff26c07303fdab7a3c4e1f4203a882337f728c.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:2476
    • C:\Windows\SysWOW64\Egcfdn32.exe
      C:\Windows\system32\Egcfdn32.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:2904
      • C:\Windows\SysWOW64\Empomd32.exe
        C:\Windows\system32\Empomd32.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:3060
        • C:\Windows\SysWOW64\Eclcon32.exe
          C:\Windows\system32\Eclcon32.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:2688
          • C:\Windows\SysWOW64\Ekghcq32.exe
            C:\Windows\system32\Ekghcq32.exe
            5⤵
            • 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:2652
            • C:\Windows\SysWOW64\Emgdmc32.exe
              C:\Windows\system32\Emgdmc32.exe
              6⤵
              • 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:2500
              • C:\Windows\SysWOW64\Fpgnoo32.exe
                C:\Windows\system32\Fpgnoo32.exe
                7⤵
                • 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:1928
                • C:\Windows\SysWOW64\Flnndp32.exe
                  C:\Windows\system32\Flnndp32.exe
                  8⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:1976
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 140
                    9⤵
                    • Loads dropped DLL
                    • Program crash
                    PID:2544

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\Emgdmc32.exe

          Filesize

          67KB

          MD5

          c55d2fd2caa498bcb287dfa2552ca0b7

          SHA1

          6538dac53b3afea01493a7bc625252fa8b75e43d

          SHA256

          7eeb64801e2c15a29837f6a62ace21470707d226e18731bdf60d668c8c31fb63

          SHA512

          121400c3688ceab538bab869b97efa8a26d438a8892af797471535b8d2e3321d1a9fdff279bb6a18cdb9f86dd51b74372bd780900b38366c9a4acec77d522eb2

        • \Windows\SysWOW64\Eclcon32.exe

          Filesize

          67KB

          MD5

          6d511d075f45066d92e85c5c01c4cdc2

          SHA1

          2a2eedbdea1aa3bd1101c8b52c6875b77e94206b

          SHA256

          bf05185c5948ca79292b1c64e50ecdf12d592458a01ed2311014daef50ddcf46

          SHA512

          ecc6e6cd104708322d875e0317539d76e9af54fa5087d05678b984a28211289fd8d15ca64ed263392efdaa701e6570a4a858f716dcf05eca2c8d6f70bd9bb512

        • \Windows\SysWOW64\Egcfdn32.exe

          Filesize

          67KB

          MD5

          f2e89c69562d0399cdf8763c80ed4132

          SHA1

          4311ac77f4529f5f83f7b93c551b33dcd3f1691d

          SHA256

          99062cbc5eadba1eca00480cd88772e39b1ef8e0e21461f634cdc25472a9defc

          SHA512

          0af8b033fa698a7a63056d117b4b4cf9760dca29b7da8aee4316d811b63280a61d532d2c3e7c6fe63e2bc8d71b50c143e0d1ed94c81e8bdf7838e4f6fe59614d

        • \Windows\SysWOW64\Ekghcq32.exe

          Filesize

          67KB

          MD5

          5934691d922a52382113d9b017dcbc39

          SHA1

          0c9b67811a898e9fb16954a9e11fe41cd358204f

          SHA256

          11fad4f9df74b8ea5ffa62178c09d0b49babd07334c01345746328868fb89feb

          SHA512

          c253367544ad5c52e4ea1553e3e4d7e45d24e32079a62e0e4d1946eee4928f477d43a27c5190a6b6a6fa9c35eb2d8e657e005771be390db4351b9b28f37aeeae

        • \Windows\SysWOW64\Empomd32.exe

          Filesize

          67KB

          MD5

          7dd95712ce349863976b113be0c444a9

          SHA1

          3b965a96e752904a0ff673c07e5d226a50d7c327

          SHA256

          bfebfec29054f72a6e0b2aabb1e08cce19769fc8139d4d4af5e341fcff71395b

          SHA512

          ece0fa0bd3a84aeeaf0eee18c6404a1a70a67ca7ef48b984df837857694927cc507459de1a7c3b1d301e031ae7cd74efef0318b1d1f3763c081fa62f231b4bec

        • \Windows\SysWOW64\Flnndp32.exe

          Filesize

          67KB

          MD5

          2ed883d8bff4c4f8c16ce6420fbf11ce

          SHA1

          595068370a7ee4d382e8cb6e4851443a585841e6

          SHA256

          57dc1819e3acce01f4674bdc2a6ff73932223ee8afcffb3dae1d1521d71dae87

          SHA512

          9f4bb67392730c6fc57a6ec7ebeb28ce17aa39a526934a3bab4da5afa390a3809abd9673094e5a3b18873778b91ca5d7c6fa43e57bc596298d38452ae0ff94ca

        • \Windows\SysWOW64\Fpgnoo32.exe

          Filesize

          67KB

          MD5

          a35df7c1a158960ee572ed66c5ffbd79

          SHA1

          435212d890cb52dbff2da71fffd03e19582f5e83

          SHA256

          c5b0a968220240778aad8d74dd3cd3b0e649407aa0756f8b87082d7a0fce94c3

          SHA512

          859a177a4427de5f0dbd95e19f9daefe8b8dab7307d3c2553e06cbb75dceffa5d416bdc6f50f19017d79ba0f35bd96cf0e02a14d2482d2f09dd2a012b7fcf7d2

        • memory/1928-96-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/1928-97-0x0000000000220000-0x000000000025B000-memory.dmp

          Filesize

          236KB

        • memory/1976-106-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/1976-99-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/2476-67-0x0000000000220000-0x000000000025B000-memory.dmp

          Filesize

          236KB

        • memory/2476-56-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/2476-0-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/2476-17-0x0000000000220000-0x000000000025B000-memory.dmp

          Filesize

          236KB

        • memory/2500-69-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/2500-77-0x0000000000220000-0x000000000025B000-memory.dmp

          Filesize

          236KB

        • memory/2500-105-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/2652-54-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/2652-104-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/2688-85-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/2688-48-0x0000000000220000-0x000000000025B000-memory.dmp

          Filesize

          236KB

        • memory/2904-25-0x00000000002B0000-0x00000000002EB000-memory.dmp

          Filesize

          236KB

        • memory/2904-21-0x00000000002B0000-0x00000000002EB000-memory.dmp

          Filesize

          236KB

        • memory/2904-18-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/3060-81-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/3060-40-0x0000000000300000-0x000000000033B000-memory.dmp

          Filesize

          236KB