Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21-09-2024 13:23

General

  • Target

    27cfc8af28cb9bf686279d28eddb09d9786d81cb9135c8ea9e34d2591cb2c9fd.exe

  • Size

    577KB

  • MD5

    f62138746b7d65ac3d4ac68922da0dc9

  • SHA1

    30f1b630d5ea10dbd17713663ac480713405d7d2

  • SHA256

    27cfc8af28cb9bf686279d28eddb09d9786d81cb9135c8ea9e34d2591cb2c9fd

  • SHA512

    81484627ff6ca9c36c16b8cac151c8684f9691a9536206ff20ceb844619aebc9bfece73b9d89664b7ba9e83c59716d72cb2fd78691c2e8c4faeb672b4385287d

  • SSDEEP

    6144:t46tGdye419E7cV3iwbAFRWAbd4nf0H05yqE6Hl0ChW0+ksllAXBu0lWGWUJJQ4H:t3NbI7a3iwbihym2g7XO3LWUQfh4Co

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • 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 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 43 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1200
      • C:\Users\Admin\AppData\Local\Temp\27cfc8af28cb9bf686279d28eddb09d9786d81cb9135c8ea9e34d2591cb2c9fd.exe
        "C:\Users\Admin\AppData\Local\Temp\27cfc8af28cb9bf686279d28eddb09d9786d81cb9135c8ea9e34d2591cb2c9fd.exe"
        2⤵
        • Drops file in Drivers directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2172
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3044
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:1128
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$aA506.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1376
          • C:\Users\Admin\AppData\Local\Temp\27cfc8af28cb9bf686279d28eddb09d9786d81cb9135c8ea9e34d2591cb2c9fd.exe
            "C:\Users\Admin\AppData\Local\Temp\27cfc8af28cb9bf686279d28eddb09d9786d81cb9135c8ea9e34d2591cb2c9fd.exe"
            4⤵
            • Executes dropped EXE
            PID:2984
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Drops file in Drivers directory
          • 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:2060
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2240
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2900
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2820
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2976

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      258KB

      MD5

      d09b9668aaa7d6256e304d81d186762a

      SHA1

      de26e92071eaaeade62148a2298c3c1ff71892d2

      SHA256

      13fb4c791bb4428a3b487763bf18a4122bf8f4dedc5f5b80dd8edcdbddfa5a93

      SHA512

      13c6bed3f6d6e3faf9f9fae66f5fa515b0301bf9a02178f80cc9dd0fca52de648b0572664e0384f86b8435ea9a41202dce2bc9847e2b0ca38321587e4588b80f

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

      Filesize

      478KB

      MD5

      9079a18ba8965b624d3fbdb211c377a3

      SHA1

      21c0f585d6c3758c564f445a47762847abcd18d9

      SHA256

      b16a3e0f78aec79799f5cbd791293d5e896afc7244294ff5b2757973e416500e

      SHA512

      41e8e9c09432d6b0535640bddef81acbb5500d461cf3b4e0104cd0ff8a773e933df19ae9bda6d31411e670de25973a1663bb9435ff3a69ec9ffbbf1c3d88aaeb

    • C:\Users\Admin\AppData\Local\Temp\$$aA506.bat

      Filesize

      722B

      MD5

      8b0fed30dba06efbe89c2dc54e5b42aa

      SHA1

      3efd4cade3ba4e65fa6d2153183338504f9cc079

      SHA256

      f38329b2f8c183922dda8debeae2dcc0a2514e801632d683111e8f56c8b1ba03

      SHA512

      1e054126b1f4e757dadd5289808cc21bbf9cf037cf93fb7f6ab85f9d9826aacef7ecd70df9c5f2e5280872c836c81a2316c00bc15f32631e79727a0ee338b95b

    • C:\Users\Admin\AppData\Local\Temp\27cfc8af28cb9bf686279d28eddb09d9786d81cb9135c8ea9e34d2591cb2c9fd.exe.exe

      Filesize

      544KB

      MD5

      9a1dd1d96481d61934dcc2d568971d06

      SHA1

      f136ef9bf8bd2fc753292fb5b7cf173a22675fb3

      SHA256

      8cebb25e240db3b6986fcaed6bc0b900fa09dad763a56fb71273529266c5c525

      SHA512

      7ac1581f8a29e778ba1a1220670796c47fa5b838417f8f635e2cb1998a01515cff3ee57045dacb78a8ec70d43754b970743aba600379fe6d9481958d32d8a5aa

    • C:\Windows\Logo1_.exe

      Filesize

      33KB

      MD5

      beb95acb4c15833bdd7b09dd53c78930

      SHA1

      3375e35d1faa90c7ca5b60457ed2f4aed915153a

      SHA256

      59d640e8db52cd783338125429e8adef0ba3bb6c6c6e9f5c112732a7ad88c003

      SHA512

      f22074d8930af86ca1bead0f2973241c129aee323953df791598b3141147e900679cb42f12ec85f926451f8f0a7219fbbc6ac5a5e4523e7e388309f1b7b5369d

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

      Filesize

      832B

      MD5

      7e3a0edd0c6cd8316f4b6c159d5167a1

      SHA1

      753428b4736ffb2c9e3eb50f89255b212768c55a

      SHA256

      1965854dfa54c72529c88c7d9f41fa31b4140cad04cf03d3f0f2e7601fcbdc6c

      SHA512

      9c68f7f72dfa109fcfba6472a1cced85bc6c2a5481232c6d1d039c88b2f65fb86070aeb26ac23e420c6255daca02ea6e698892f7670298d2c4f741b9e9415c7f

    • F:\$RECYCLE.BIN\S-1-5-21-3290804112-2823094203-3137964600-1000\_desktop.ini

      Filesize

      9B

      MD5

      5412111268dd2c1fb1cf8697bfab9b6c

      SHA1

      16d0b289e83c74cb50a004edd7c5750ac706f321

      SHA256

      f3aa35be7048ddbf11fc581e5f9476745d75bcf097e121ba2915614e360a0cdc

      SHA512

      13fc5bf11faaf5471fde8a1bafdcc6d27521bad796e5e532c94d9c8232dd70088e70b6d5ac60c4c15d13e59926ac38e9a9e01b4dd4694a77d70bdd1ae7005ccf

    • memory/1200-30-0x0000000002D30000-0x0000000002D31000-memory.dmp

      Filesize

      4KB

    • memory/2060-34-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2060-3092-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2060-20-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2060-4153-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2172-0-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2172-18-0x0000000000230000-0x000000000026E000-memory.dmp

      Filesize

      248KB

    • memory/2172-19-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB