Analysis

  • max time kernel
    119s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2025, 18:58

General

  • Target

    b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe

  • Size

    101KB

  • MD5

    85a23eaf0aa2cae3e1c28d835a4e22f0

  • SHA1

    2aa0a585a0c153801da2f855cc61e6fdab7c0830

  • SHA256

    b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52

  • SHA512

    dca59d457d45e5434a08a3737b085561ff872c38c3eae3e74a09029bc4a37505ebc3737ed7b86316e05dcf8f9b2cba04be9f79b78d6ec1e224231582f924c593

  • SSDEEP

    1536:/Bzsrz8VuJlMXaDuiN+WtwXaa8NPI9j+RedcP01ic4Brg:/Bm8ulMXaKdWtwXwKRj1EBrg

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 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 9 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 64 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3540
      • C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe
        "C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4244
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3292
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:5000
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aA6FE.bat
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3448
          • C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe
            "C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe"
            4⤵
            • Executes dropped EXE
            PID:2288
        • 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:2252
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1368
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2824
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1912
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1036

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\7-Zip\7z.exe

            Filesize

            577KB

            MD5

            df4a3617e8cbc3378d571dff386ef26c

            SHA1

            9a3c64a8a6f2e181590ef7d8e1aee17d27978604

            SHA256

            183ac24ebb30c430ddff92d90c7fa08b471bc9a86b7b73153a8e95944d81918f

            SHA512

            a30d190c86021c739cda8c7c9a1a0d73163d18a40260e944139e5cf0cf2c3cfb7c2aaf5d352908c321d9701da35ea637729d172f8e1ef45c46c68b8623cdffe7

          • C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe

            Filesize

            644KB

            MD5

            11e0853d537d2721ecc655c1fc527e91

            SHA1

            c8e23d103e93073ba7c93374878ae9a9f926c944

            SHA256

            f168cda7cfa0f4f1d8dc26f615772410afe41b43fbc3da3cfe2c249b1eadca30

            SHA512

            3e5af85789e480d355053e9ded02108ae53136aec795d5d37faf1d5426275f7f3729e5583b0a95b3434d5b4452c7382405c0f8bc94e8a65275335c62268e0ee2

          • C:\Users\Admin\AppData\Local\Temp\$$aA6FE.bat

            Filesize

            728B

            MD5

            a5cac47d07b4d8b281159605700f7bfb

            SHA1

            486140f0545be462807cb13234e0cfcb1804b1c1

            SHA256

            c8b59b9dbe2c337514297c9ffc5aead659bdbb73a9d60e291261c1c1ada87912

            SHA512

            b7c9aba46fed32c7e12f8a827fd2d88da607afc61d1a2862af83c7b03d91271df45266f6dc053fad1ea98e61643b04651f3336ad6c4a8284adda06e16b7e4e28

          • C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe.exe

            Filesize

            68KB

            MD5

            48335cfbe6a9bdaa2492ca1320b70a3a

            SHA1

            6d3c3d659e3718a0b56f52c9d4386d55d7672b97

            SHA256

            4ec34f1d893e8cc02f669fb5eb329bbcc5374bd7e7284e8fd86fbc29d2ffeb4d

            SHA512

            9eaf3b380449ab1d2b4b6371336fc71f6a43eee0295de012d0859e7f3b80a87f9d8316b0e65d4ca450630ee17b95c64e79e594bfe27fb3965917b0c5bc2d1b58

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            c553ef4162b4d62dba0f2ddd0b295a33

            SHA1

            71537c2536f7a1c17d798a29e95c35bee6437372

            SHA256

            c6b2a32cd1a1c9da4da4adfafdef3b1930c965bc36397f252228b4a5e5a9d822

            SHA512

            48ec749bed872ffb573eb7b5d653cee33272cdeb655f3c084a8382b48007e42326673439f0e51863eb828122a980ff85a4ab7a417c77d6bb47dc2e630d13f7b7

          • F:\$RECYCLE.BIN\S-1-5-21-2878641211-696417878-3864914810-1000\_desktop.ini

            Filesize

            9B

            MD5

            5e0a31b83de656e964e3bafc02e48b44

            SHA1

            4ff07638865e3ef91f142612ff2d06a78ce7052a

            SHA256

            3b6f5f8fd2c76049e871847db6282f5567c112f9a793d6571a4bc740c493ba08

            SHA512

            ab728fe3451c71175babdf039c987e3b91d5e48a33e2e41eb9d9e021bbf484d5e701076b8e09e1370ee8267e6fbc7141f3af7a065d44d3d8509d3c55e1ab8efd

          • memory/2252-11-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2252-18-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2252-2666-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2252-8913-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/4244-0-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/4244-10-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB