Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2024 06:09

General

  • Target

    b21d5e1730fe1df803a2a2ff950204447e280f670d63581fd9b7ccd6020e7230.exe

  • Size

    251KB

  • MD5

    8310c43cfe4ed25e7ee8be6b81e4c156

  • SHA1

    9701a8d8c4e20f668bc320d91736653c782534c7

  • SHA256

    b21d5e1730fe1df803a2a2ff950204447e280f670d63581fd9b7ccd6020e7230

  • SHA512

    08bdbcd2dc4d1fab3c0f9b3f1062c798da64c9d4ff88b31471c90026bdbed8ca7acd33723c45e56d6bd0a4be95a4fd4b5113a54fe76dc545fee1d4dad5006075

  • SSDEEP

    6144:SYqml5a6EdkQxiUmRQColKGAOPQK2GwIgfx+qSfF0:SVml5a6EdkQgUmR7G9QK3wJx+qSfF0

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1216
      • C:\Users\Admin\AppData\Local\Temp\b21d5e1730fe1df803a2a2ff950204447e280f670d63581fd9b7ccd6020e7230.exe
        "C:\Users\Admin\AppData\Local\Temp\b21d5e1730fe1df803a2a2ff950204447e280f670d63581fd9b7ccd6020e7230.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2376
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1076
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2520
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$aAB7B.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1740
          • C:\Users\Admin\AppData\Local\Temp\b21d5e1730fe1df803a2a2ff950204447e280f670d63581fd9b7ccd6020e7230.exe
            "C:\Users\Admin\AppData\Local\Temp\b21d5e1730fe1df803a2a2ff950204447e280f670d63581fd9b7ccd6020e7230.exe"
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:2752
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Drops startup file
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1868
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2456
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2972
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1648
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2636

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe

      Filesize

      478KB

      MD5

      8ef1a94c2988444c9d5d6c36a63765d3

      SHA1

      d566ce1693e16fd605afcf2c5ea87af57af56197

      SHA256

      ab3dfdf37c3eaae2dbeb15b4e6be3659187e8e3613450664160702c787cf1623

      SHA512

      991fc8c061d831e96f6e061ec85f6d5c2aa7e7380a949bd04193ef6b0f8d495a462bf6b9bcafbd2893eefa0195bf4a191a923c36f4845e6f44a86be1e1ded45e

    • C:\Users\Admin\AppData\Local\Temp\$$aAB7B.bat

      Filesize

      722B

      MD5

      c2cd5ca2f1b6d6f73c8798ec16e991aa

      SHA1

      9766b34eee0a1473e7af8d5414eb616f010c9282

      SHA256

      a7d70ec4e6b3695f575a7c041a0693cc2ba8f47ef8b3e184e924e074010767ea

      SHA512

      88bbcd5c878e9aaaf077d471f51a49bea1b0e3b3a7a53321f23762b8214320e8f0e7782ae6021108f100b734d79aabfcd0449348ee07c8f07c5db7447d6db332

    • C:\Users\Admin\AppData\Local\Temp\b21d5e1730fe1df803a2a2ff950204447e280f670d63581fd9b7ccd6020e7230.exe.exe

      Filesize

      217KB

      MD5

      021c57c74de40f7c3b4fcf58a54d3649

      SHA1

      ef363ab45b6fe3dd5b768655adc4188aadf6b6fd

      SHA256

      04adf40ba58d0ab892091c188822191f2597bc47dab8b92423e8fc546dc437ef

      SHA512

      77e3bbb08c661285a49a66e8090a54f535727731c44b7253ea09ffe9548bae9d120ef38a67dfa8a5d8da170dde3e9c1928b96c64dfc07b7f67f93b478937c018

    • C:\Windows\Logo1_.exe

      Filesize

      33KB

      MD5

      3253bf7588138d1e39d3105c7b5dc8b9

      SHA1

      b26c43ff51ce241d473aa3efa30cd3b3bc68e43a

      SHA256

      63554e061f95eb7f63c9d50e7c14fc88c1cbf4db277efaefe1bea2388f9ed5e0

      SHA512

      cd45a96ada3daa5d2386ef9d5ded03a7e1e6f5c800bf01d02c1289c2e5234b8ed2b430ad0438837b32da22a753d07b0d1ee918dca8567a8c6c3619a8050c3bd5

    • F:\$RECYCLE.BIN\S-1-5-21-312935884-697965778-3955649944-1000\_desktop.ini

      Filesize

      9B

      MD5

      82fa69b12ac2df558c85e86426eb13eb

      SHA1

      ad90b8756e3bebe04450f6950419c761844d7b7e

      SHA256

      f7622a3740b818722e46a36b5aeb1c0ba6bec25bec811e3dcfe0b5ba1d728775

      SHA512

      3c4da39d3b0d68ade3ff8ded69bf1e78a1ef88f7ed70c85572ae06e6be78155ffc2f557f577208e579191be2d8be2a1fa833b9ca74a35bb69cf9c32c23f4d99f

    • memory/1216-28-0x0000000002EF0000-0x0000000002EF1000-memory.dmp

      Filesize

      4KB

    • memory/1868-31-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1868-2961-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1868-4152-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2376-18-0x0000000000230000-0x0000000000270000-memory.dmp

      Filesize

      256KB

    • memory/2376-15-0x0000000000230000-0x0000000000270000-memory.dmp

      Filesize

      256KB

    • memory/2376-0-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2376-19-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB