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Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2024, 14:24

General

  • Target

    b5f8a6d0a2da6ff8bd066ba1bee1e251c9cb5f7b95c0203dd7b9eff0f6d49f84.exe

  • Size

    48KB

  • MD5

    f58392d3f546844c5fde4ce20f54d505

  • SHA1

    b7747a0d7ccc4d43b5a052e260e158813eaddf32

  • SHA256

    b5f8a6d0a2da6ff8bd066ba1bee1e251c9cb5f7b95c0203dd7b9eff0f6d49f84

  • SHA512

    ea77178e0ffbab9a9c29409c505d1f3c1b0b4ec2ef6643fcdd2806ca1ea5c1327c97338e3f755db239e103c800648828c27b899cb9bf8f87aabaa185a94d503e

  • SSDEEP

    1536:PssaYzMXqtGNttyUn01Q78a4RWHqaNrFd:PssaY46tGNttyJQ7KR7aNpd

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Deletes itself 1 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
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1352
      • C:\Users\Admin\AppData\Local\Temp\b5f8a6d0a2da6ff8bd066ba1bee1e251c9cb5f7b95c0203dd7b9eff0f6d49f84.exe
        "C:\Users\Admin\AppData\Local\Temp\b5f8a6d0a2da6ff8bd066ba1bee1e251c9cb5f7b95c0203dd7b9eff0f6d49f84.exe"
        2⤵
        • Drops file in Drivers directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2352
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3056
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2904
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a454.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2776
            • C:\Users\Admin\AppData\Local\Temp\b5f8a6d0a2da6ff8bd066ba1bee1e251c9cb5f7b95c0203dd7b9eff0f6d49f84.exe
              "C:\Users\Admin\AppData\Local\Temp\b5f8a6d0a2da6ff8bd066ba1bee1e251c9cb5f7b95c0203dd7b9eff0f6d49f84.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: GetForegroundWindowSpam
              PID:2652
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • Drops file in Drivers directory
            • 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:1344
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2664
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2588
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2564
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2472

          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

            17362751e655c027b614f4cd6c61f9d5

            SHA1

            4da6addb5ff99de2411fd670fd1188acaf2d8bd4

            SHA256

            005595ef78d465abfe0592b223fb563340d62508887ea5bfad8fd9cae12b962a

            SHA512

            4e22c440f56cf51f6a5fbd768ca566951956294af1ea5c916c43888125b2d49be0131e8154bbd0bbf81b71257183636452976c4d224a55d6f1eaadb91001bfd7

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

            Filesize

            478KB

            MD5

            e93193856beaecee9905e2a6f36be17f

            SHA1

            d4c267ea34f28f048e29461656984aad70912eda

            SHA256

            1d345f4e09acdbc12e63ce90d0bd373b56d50a378f4603d8425f6df815e44a7b

            SHA512

            1fbe9c0e86ad98d6a2a7924badec0fffc69a7d0a4839e8af45d0aedf1e4e24a4a798df0ec5b8d0aa6e0e566c0c83a4030549bd32b9ac27406fc772d4a2ff5fc3

          • C:\Users\Admin\AppData\Local\Temp\$$a454.bat

            Filesize

            721B

            MD5

            5fc3e4b50fc888da5ee2ac4b0ef5e80a

            SHA1

            d73685ade25c131015ab48f98e053c7ccb8d2ac3

            SHA256

            9d578ecee156275cab62b7ef4fdd542721ebc396fa0778dd88331b42c27b76e6

            SHA512

            fb3c60afdb18086c7af96be19e6a1fdd40adc6d3b170843557fbb047848774f49a5471d5089022f70f67bc67d9fda5d58715a56fd8c8fa68c70d55830db2466b

          • C:\Users\Admin\AppData\Local\Temp\b5f8a6d0a2da6ff8bd066ba1bee1e251c9cb5f7b95c0203dd7b9eff0f6d49f84.exe.exe

            Filesize

            14KB

            MD5

            ad782ffac62e14e2269bf1379bccbaae

            SHA1

            9539773b550e902a35764574a2be2d05bc0d8afc

            SHA256

            1c8a77db924ebeb952052334dc95add388700c02b073b07973cd8fe0a0a360b8

            SHA512

            a1e9d6316ffc55f4751090961733e98c93b2a391666ff50b50e9dea39783746e501d14127e7ee9343926976d7e3cd224f13736530354d8466ea995dab35c8dc2

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            39f987e46dca183809b490d0c120c0e8

            SHA1

            c78930c12920c1a076ffaee4f708678090e7c2bb

            SHA256

            42c534d6087ae3de07e32319cf932fa2cf868f7c3a8f48e64b3554dcbb699de8

            SHA512

            9a9fced1ecf27cb360395e0cbf97ae55b47eb733fef04b34e0a94daae0c0d201df61870e198d072b1058f7d1105a5e139d8a09c1da8470032dfb2b51a4d906ec

          • C:\Windows\system32\drivers\etc\hosts

            Filesize

            832B

            MD5

            7e3a0edd0c6cd8316f4b6c159d5167a1

            SHA1

            753428b4736ffb2c9e3eb50f89255b212768c55a

            SHA256

            1965854dfa54c72529c88c7d9f41fa31b4140cad04cf03d3f0f2e7601fcbdc6c

            SHA512

            9c68f7f72dfa109fcfba6472a1cced85bc6c2a5481232c6d1d039c88b2f65fb86070aeb26ac23e420c6255daca02ea6e698892f7670298d2c4f741b9e9415c7f

          • F:\$RECYCLE.BIN\S-1-5-21-3627615824-4061627003-3019543961-1000\_desktop.ini

            Filesize

            8B

            MD5

            1b16d2dbd4281ce4e4e5729c608dcb0b

            SHA1

            851e624080ba5598edb808d4b30fe2d74999ce18

            SHA256

            c9e46fb51d0588ca1e48ca66731e11992770b9b74a982f9bdbb6ce5b5b75d549

            SHA512

            cd1c4cf7c7871cb48ce735226b25f689b340037e6c992441e566161de7fca7410762d1a0c2670ee4b6546f7ee854d3219e0e2315c3e0387d9bbe3f08076b5a59

          • memory/1344-4082-0x0000000000400000-0x000000000043E000-memory.dmp

            Filesize

            248KB

          • memory/1344-3278-0x0000000000400000-0x000000000043E000-memory.dmp

            Filesize

            248KB

          • memory/1344-31-0x0000000000400000-0x000000000043E000-memory.dmp

            Filesize

            248KB

          • memory/1352-28-0x0000000002B40000-0x0000000002B41000-memory.dmp

            Filesize

            4KB

          • memory/2352-0-0x0000000000400000-0x000000000043E000-memory.dmp

            Filesize

            248KB

          • memory/2352-18-0x0000000000400000-0x000000000043E000-memory.dmp

            Filesize

            248KB