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Analysis

  • max time kernel
    115s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/09/2024, 16:14

General

  • Target

    f6247cc753c56ba31fd6e887b6dedb456eec838ac23cee2cde877e5c63cd12fcN.exe

  • Size

    77KB

  • MD5

    54b4c3a3141e09c22d94af07f1a089b0

  • SHA1

    6c5848e1d34e401e5f0fd063a5ba47779c810db8

  • SHA256

    f6247cc753c56ba31fd6e887b6dedb456eec838ac23cee2cde877e5c63cd12fc

  • SHA512

    bf7937e6dd2219b388f6c2011dc1342b824b2adfe21cb411ea8a355f573e1be42673e5a1b1853edf0e24b506af0963c63071a9de63b69cb19b0549c7acc9dee4

  • SSDEEP

    1536:2gsYOmp0JMmIbLSjj6mDniX12LtWwfi+TjRC/D:2ej4hniWYwf1TjYD

Malware Config

Extracted

Family

berbew

C2

http://crutop.nu/index.php

http://crutop.ru/index.php

http://mazafaka.ru/index.php

http://color-bank.ru/index.php

http://asechka.ru/index.php

http://trojan.ru/index.php

http://fuck.ru/index.php

http://goldensand.ru/index.php

http://filesearch.ru/index.php

http://devx.nm.ru/index.php

http://ros-neftbank.ru/index.php

http://lovingod.host.sk/index.php

http://www.redline.ru/index.php

http://cvv.ru/index.php

http://hackers.lv/index.php

http://fethard.biz/index.php

http://ldark.nm.ru/index.htm

http://gaz-prom.ru/index.htm

http://promo.ru/index.htm

http://potleaf.chat.ru/index.htm

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 4 IoCs
  • Berbew

    Berbew is a backdoor written in C++.

  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 6 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies registry class 9 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6247cc753c56ba31fd6e887b6dedb456eec838ac23cee2cde877e5c63cd12fcN.exe
    "C:\Users\Admin\AppData\Local\Temp\f6247cc753c56ba31fd6e887b6dedb456eec838ac23cee2cde877e5c63cd12fcN.exe"
    1⤵
    • Adds autorun key to be loaded by Explorer.exe on startup
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3656
    • C:\Windows\SysWOW64\Fjocbhbo.exe
      C:\Windows\system32\Fjocbhbo.exe
      2⤵
      • Adds autorun key to be loaded by Explorer.exe on startup
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1280
      • C:\Windows\SysWOW64\Gddgpqbe.exe
        C:\Windows\system32\Gddgpqbe.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2344
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 400
          4⤵
          • Program crash
          PID:4748
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2344 -ip 2344
    1⤵
      PID:3172
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4352,i,2727319350781907497,7925939240893079607,262144 --variations-seed-version --mojo-platform-channel-handle=3952 /prefetch:8
      1⤵
        PID:1564

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\Fjocbhbo.exe

        Filesize

        77KB

        MD5

        1951e5d1a8098feb1dabd4e9835b4e55

        SHA1

        00be4171ef5fa983deaa4747efd63c9eb7a25415

        SHA256

        6491ba82f3c612254eacef5410c462695425e901aab914c9a936df17271da6b2

        SHA512

        3e832849da24cb64c9880a55cffa3a0d90d50ab4332e333e1b7e1dd0cba23e135e195c3066dc152324c99eb1579afe082e51dd28c300858ad1b1c422cdbbe70a

      • C:\Windows\SysWOW64\Gddgpqbe.exe

        Filesize

        77KB

        MD5

        6046c29d673f9541f6326f2e3ab06b4f

        SHA1

        9e45888c91e5717f4789ad30aaa424d101f1a6e0

        SHA256

        86b0043cc0f5928100c3bba44b2c4843cf6026e1f36e17785ac9b8a66c0bc8f6

        SHA512

        369382aa9f75bace70bac6ff72a7b5167552945b30355c3aae3d0ace0cd171e8ea58aca43d13b4a78c09ea9c23aff8dfb05e19a0e95c7803a2d49ec80b757b09

      • memory/1280-9-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/1280-19-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2344-16-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2344-18-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/3656-0-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/3656-1-0x0000000000431000-0x0000000000432000-memory.dmp

        Filesize

        4KB

      • memory/3656-20-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB