Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    13/10/2023, 03:10

General

  • Target

    f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525.exe

  • Size

    306KB

  • MD5

    9e9c807f2464d861542da233224d38f0

  • SHA1

    e2f68668f7d1c5ca9dee493d08c2427745653ce1

  • SHA256

    f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525

  • SHA512

    bd8f581fec8a94e86b371c7c061e29e3cfa585a410e1755a19c734aa82c31f22b71a694cba097d5b436f455c4f39fd7e1c3ced8d529cd1e385b31ef12c923451

  • SSDEEP

    6144:OMpEObiZKDAX0jH0o2zq9DmQ3LOotL4gr:OMpRbiZKm4H8zq9Fjtdr

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1204
      • C:\Users\Admin\AppData\Local\Temp\f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525.exe
        "C:\Users\Admin\AppData\Local\Temp\f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2012
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2408
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2420
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a41A2.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:1084
            • C:\Users\Admin\AppData\Local\Temp\f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525.exe
              "C:\Users\Admin\AppData\Local\Temp\f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525.exe"
              4⤵
              • Executes dropped EXE
              PID:2688
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • Executes dropped EXE
            • Enumerates connected drives
            • Drops file in Program Files directory
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2628
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2760
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2728
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:3056
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2516

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe

                  Filesize

                  258KB

                  MD5

                  3844fd5bcd3a7ef860eaa002cddea543

                  SHA1

                  8a68ab1b867717c84623374ab8edb874028377be

                  SHA256

                  c83a06ba0e59c8908bb9f1199aa5bcfa2fda87dae16474cf61509bef6ee4278e

                  SHA512

                  cfb0b4f9f197da875b7aa399c563a8a411087c0938f97f86173200c5c8f03d050d5097504ce234f8457d8a9f6cf921584ec4d4b5683b75d12151f6b293d53e03

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

                  Filesize

                  478KB

                  MD5

                  559621f69b938488a7d98cf123a29640

                  SHA1

                  3dfe808fdf654a30ae778341d2d44302cde46baf

                  SHA256

                  f5c2bfa4c8aa4885bc29c15f3e8253eda4737f73d312ae074b6438ce522d79f8

                  SHA512

                  75f4f69ad33898c2edbaf00bd6387d629d04131e36fb3d45e04c4bf9d31517435fca8a92a36b3674fdca768dacff46797d8738dc4162e113c43bb26c3389c9ce

                • C:\Users\Admin\AppData\Local\Temp\$$a41A2.bat

                  Filesize

                  722B

                  MD5

                  da19532a1d1bc1c808b1e7358e12bdcb

                  SHA1

                  8106834fdd8b8b999bf77342a4b5db950e493031

                  SHA256

                  1f908e9267b087f3f8f1c7fd021ce806167240863607f989cc5e7929e93ec5f2

                  SHA512

                  cad89f12b6504c5cf09d49c2a6e5d1b82164e4d1da4ff4cde628debd2441dc446446cd477e3afd3975c63f7b366a9cf1fd20595e26e885e1da3d856515d67202

                • C:\Users\Admin\AppData\Local\Temp\$$a41A2.bat

                  Filesize

                  722B

                  MD5

                  da19532a1d1bc1c808b1e7358e12bdcb

                  SHA1

                  8106834fdd8b8b999bf77342a4b5db950e493031

                  SHA256

                  1f908e9267b087f3f8f1c7fd021ce806167240863607f989cc5e7929e93ec5f2

                  SHA512

                  cad89f12b6504c5cf09d49c2a6e5d1b82164e4d1da4ff4cde628debd2441dc446446cd477e3afd3975c63f7b366a9cf1fd20595e26e885e1da3d856515d67202

                • C:\Users\Admin\AppData\Local\Temp\f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525.exe

                  Filesize

                  273KB

                  MD5

                  55e392d1bd55a1292b6ce766225416e5

                  SHA1

                  06d8134a3002e6974407fb5da0a59ab43415a52a

                  SHA256

                  db42cb95904cfc6891df2aa736506fb34a26cf9a26e88ab0ef262e0459344a3e

                  SHA512

                  0c55062cf8debbdf1a7a4f41527e43cd124fb7777e9b930de9cc900abf9c27a1956a536200e23dddc9a4068ac5bc9a8052299a4f2cf010cffd205a32d99581a2

                • C:\Users\Admin\AppData\Local\Temp\f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525.exe.exe

                  Filesize

                  273KB

                  MD5

                  55e392d1bd55a1292b6ce766225416e5

                  SHA1

                  06d8134a3002e6974407fb5da0a59ab43415a52a

                  SHA256

                  db42cb95904cfc6891df2aa736506fb34a26cf9a26e88ab0ef262e0459344a3e

                  SHA512

                  0c55062cf8debbdf1a7a4f41527e43cd124fb7777e9b930de9cc900abf9c27a1956a536200e23dddc9a4068ac5bc9a8052299a4f2cf010cffd205a32d99581a2

                • C:\Windows\Logo1_.exe

                  Filesize

                  33KB

                  MD5

                  f3c23be017a84be36c388b080a98c522

                  SHA1

                  34ea2ed91928fac99c1c56d0c99bbfe1d68049d9

                  SHA256

                  1f9dbfb6619cfc47de7c82beb1403b0fa77620eaba784c9695c260822e1a770e

                  SHA512

                  f3aedc0af590ff6d03a2266182273fdcd84c2c105f9f34b594ce947bbfa8cfa184a58390ae22b9c046665423b0f0235fb8f35f69479369613172807b221c4ce4

                • C:\Windows\Logo1_.exe

                  Filesize

                  33KB

                  MD5

                  f3c23be017a84be36c388b080a98c522

                  SHA1

                  34ea2ed91928fac99c1c56d0c99bbfe1d68049d9

                  SHA256

                  1f9dbfb6619cfc47de7c82beb1403b0fa77620eaba784c9695c260822e1a770e

                  SHA512

                  f3aedc0af590ff6d03a2266182273fdcd84c2c105f9f34b594ce947bbfa8cfa184a58390ae22b9c046665423b0f0235fb8f35f69479369613172807b221c4ce4

                • C:\Windows\Logo1_.exe

                  Filesize

                  33KB

                  MD5

                  f3c23be017a84be36c388b080a98c522

                  SHA1

                  34ea2ed91928fac99c1c56d0c99bbfe1d68049d9

                  SHA256

                  1f9dbfb6619cfc47de7c82beb1403b0fa77620eaba784c9695c260822e1a770e

                  SHA512

                  f3aedc0af590ff6d03a2266182273fdcd84c2c105f9f34b594ce947bbfa8cfa184a58390ae22b9c046665423b0f0235fb8f35f69479369613172807b221c4ce4

                • C:\Windows\rundl132.exe

                  Filesize

                  33KB

                  MD5

                  f3c23be017a84be36c388b080a98c522

                  SHA1

                  34ea2ed91928fac99c1c56d0c99bbfe1d68049d9

                  SHA256

                  1f9dbfb6619cfc47de7c82beb1403b0fa77620eaba784c9695c260822e1a770e

                  SHA512

                  f3aedc0af590ff6d03a2266182273fdcd84c2c105f9f34b594ce947bbfa8cfa184a58390ae22b9c046665423b0f0235fb8f35f69479369613172807b221c4ce4

                • F:\$RECYCLE.BIN\S-1-5-21-2180306848-1874213455-4093218721-1000\_desktop.ini

                  Filesize

                  10B

                  MD5

                  64a8745f77935c35c66f3aeeddf5d47d

                  SHA1

                  1214a584f661cb008b494ce6278289f8cf406810

                  SHA256

                  7841de37b0bf8c995d0b903bef18bd4159f94d9c2a35c91b06dabe8198c6c63a

                  SHA512

                  807b8f5512f868d0a2b1a10889164f787aa07b4309511326f4755d1121e666ec30dfb444a0565a5a7426cbd45b41d49d6429c9baf63a0bd3948b85b57841af3b

                • \Users\Admin\AppData\Local\Temp\f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525.exe

                  Filesize

                  273KB

                  MD5

                  55e392d1bd55a1292b6ce766225416e5

                  SHA1

                  06d8134a3002e6974407fb5da0a59ab43415a52a

                  SHA256

                  db42cb95904cfc6891df2aa736506fb34a26cf9a26e88ab0ef262e0459344a3e

                  SHA512

                  0c55062cf8debbdf1a7a4f41527e43cd124fb7777e9b930de9cc900abf9c27a1956a536200e23dddc9a4068ac5bc9a8052299a4f2cf010cffd205a32d99581a2

                • \Users\Admin\AppData\Local\Temp\f4fdffb87fccc77076fd8d255bdc4bf2f49511ec0d42827905240d4c93180525.exe

                  Filesize

                  273KB

                  MD5

                  55e392d1bd55a1292b6ce766225416e5

                  SHA1

                  06d8134a3002e6974407fb5da0a59ab43415a52a

                  SHA256

                  db42cb95904cfc6891df2aa736506fb34a26cf9a26e88ab0ef262e0459344a3e

                  SHA512

                  0c55062cf8debbdf1a7a4f41527e43cd124fb7777e9b930de9cc900abf9c27a1956a536200e23dddc9a4068ac5bc9a8052299a4f2cf010cffd205a32d99581a2

                • memory/1204-28-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

                  Filesize

                  4KB

                • memory/2012-15-0x0000000000400000-0x000000000043D000-memory.dmp

                  Filesize

                  244KB

                • memory/2012-0-0x0000000000400000-0x000000000043D000-memory.dmp

                  Filesize

                  244KB

                • memory/2012-16-0x0000000002FC0000-0x0000000002FFD000-memory.dmp

                  Filesize

                  244KB

                • memory/2628-32-0x0000000000400000-0x000000000043D000-memory.dmp

                  Filesize

                  244KB

                • memory/2628-57-0x0000000000400000-0x000000000043D000-memory.dmp

                  Filesize

                  244KB

                • memory/2628-2028-0x0000000000400000-0x000000000043D000-memory.dmp

                  Filesize

                  244KB

                • memory/2628-19-0x0000000000400000-0x000000000043D000-memory.dmp

                  Filesize

                  244KB

                • memory/2628-2940-0x0000000000400000-0x000000000043D000-memory.dmp

                  Filesize

                  244KB

                • memory/2628-3285-0x0000000000400000-0x000000000043D000-memory.dmp

                  Filesize

                  244KB

                • memory/2628-4052-0x0000000000400000-0x000000000043D000-memory.dmp

                  Filesize

                  244KB