Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08/11/2024, 22:23

General

  • Target

    4b1eef4267c3e8cba2b61c5f3e4d852b9dc3909c8a386754595852d723cc05e9.exe

  • Size

    252KB

  • MD5

    ea53e7ecb69c94f76102e3d4b12638b1

  • SHA1

    48f8529281ec32bf8587a63edfa2f1f6accb9ed9

  • SHA256

    4b1eef4267c3e8cba2b61c5f3e4d852b9dc3909c8a386754595852d723cc05e9

  • SHA512

    b43d9a21cb424eb4a6f50a10e492eb8a00b677ba879ad255e92eca6dc2f69c77028cf7b60524c39521938980a5bc15d6972a659cb795af7224ef9b666e09f98f

  • SSDEEP

    6144:3MR46tGdyKQZbO5JCSZT0wwla4G13CmdxLzI9LTB5xnmT:c3NlbuJcfcXbz0Tfxo

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Deletes itself 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 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 43 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Executes dropped EXE
    PID:1220
    • C:\Users\Admin\AppData\Local\Temp\4b1eef4267c3e8cba2b61c5f3e4d852b9dc3909c8a386754595852d723cc05e9.exe
      "C:\Users\Admin\AppData\Local\Temp\4b1eef4267c3e8cba2b61c5f3e4d852b9dc3909c8a386754595852d723cc05e9.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:540
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1748
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2328
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\Users\Admin\AppData\Local\Temp\$$aD97D.bat
        3⤵
        • Deletes itself
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2820
        • C:\Users\Admin\AppData\Local\Temp\4b1eef4267c3e8cba2b61c5f3e4d852b9dc3909c8a386754595852d723cc05e9.exe
          "C:\Users\Admin\AppData\Local\Temp\4b1eef4267c3e8cba2b61c5f3e4d852b9dc3909c8a386754595852d723cc05e9.exe"
          4⤵
          • Executes dropped EXE
          PID:2768
      • 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:2604
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2756
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2780
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2520
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2792

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

          3a2ce084ea775ff944454f32ca6a26d8

          SHA1

          f9ca6da1eeb2830121d029e580c766579e86094d

          SHA256

          a966b2e0c440ce0f35192ba7d696b9a145a83c49a832422de5f48c74d7dae090

          SHA512

          af907b3087a6bddf80158fb06ff4853e70e3fec6d97dbf2666e3e506fb8a2afafb45f11b5b429538674b5c40004fe8354c87759e62ec7198750453dc72448446

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

          Filesize

          478KB

          MD5

          019082f498c0949c6aa31e64b11322a0

          SHA1

          cca050e889ae63f6ebe78062d5f270358e315901

          SHA256

          9e8d3b9a6ebc8b557e726d77543293be0774b3aaf4c6047dcdc56cd31c4288ed

          SHA512

          4df702ad235babd4b450370e8a82a385e543e411393a5f4b095a705b6522143fb85bdeb7c8a8306d016369ecf2d28eb4694917840d7f593622c39c637666ed65

        • C:\Users\Admin\AppData\Local\Temp\$$aD97D.bat

          Filesize

          722B

          MD5

          7e9388207e7f4a30351f2b46e1c3fc5c

          SHA1

          0cf566df14f300a8ebfa5c33db1701ea368ff440

          SHA256

          5af2be398d842ae9917d8994ad4b2a96fc70e54e1420b535d0545875bec8e9f5

          SHA512

          ebde1193bb03174ca94b194a5edd0dc5078fd0ad150c8180503cb8a47f28c83e8ec6c47c6d4a30a6e6b5baf917d5be58a126a6014fb252a3ebc401739d1ebd9e

        • C:\Users\Admin\AppData\Local\Temp\4b1eef4267c3e8cba2b61c5f3e4d852b9dc3909c8a386754595852d723cc05e9.exe

          Filesize

          218KB

          MD5

          5f1707646575d375c50155832477a437

          SHA1

          9bcba378189c2f1cb00f82c0539e0e9b8ff0b6c1

          SHA256

          75d348a3330bc527b2b2ff8a0789f711bd51461126f8df0c0aa1647e9d976809

          SHA512

          2f55dd13abfeb5af133ac5afb43c90fd10618e8fb241f50529241cff7987fff382cf151146855c37ad8ae0401b34f6d9aa32cbec03cdd67a224dfe247bad6c99

        • C:\Windows\Logo1_.exe

          Filesize

          33KB

          MD5

          d007ba1e4eeb2cdfab3ffb93fd6e633e

          SHA1

          3d115a5172590bc064759862740b3da85f0a53ed

          SHA256

          cd8fd660f0756f41ee0c16078f6b3d1a5467c6b17d4901e2fa7c8b78e00d394f

          SHA512

          566eaef62447968bd6bfece924d432655c5860588dc91fd902ca90b09c224c74537d61605d0839409fac915b1a52e2f8b464c7b71a0dc1371026c777950474f5

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

          Filesize

          832B

          MD5

          7e3a0edd0c6cd8316f4b6c159d5167a1

          SHA1

          753428b4736ffb2c9e3eb50f89255b212768c55a

          SHA256

          1965854dfa54c72529c88c7d9f41fa31b4140cad04cf03d3f0f2e7601fcbdc6c

          SHA512

          9c68f7f72dfa109fcfba6472a1cced85bc6c2a5481232c6d1d039c88b2f65fb86070aeb26ac23e420c6255daca02ea6e698892f7670298d2c4f741b9e9415c7f

        • F:\$RECYCLE.BIN\S-1-5-21-1488793075-819845221-1497111674-1000\_desktop.ini

          Filesize

          9B

          MD5

          f7d2b8208aeaba3c31668cdcaae5c0d7

          SHA1

          dbf13d797480dc1a10de2a6164557103660e81c9

          SHA256

          70e7188042cdd89d0c810f2efbce72a86afd08d50aaa4b527f96a802a1e139b9

          SHA512

          972ff3f39a2693026bb2b8baacb54564b9ceb80e9073ed338ec80d413a7cd6b126969068f44f196b93864ea82e6dbeada0ffc94c65754b7bba82469386161c40

        • memory/540-18-0x0000000000280000-0x00000000002BE000-memory.dmp

          Filesize

          248KB

        • memory/540-19-0x0000000000400000-0x000000000043E000-memory.dmp

          Filesize

          248KB

        • memory/540-0-0x0000000000400000-0x000000000043E000-memory.dmp

          Filesize

          248KB

        • memory/540-13-0x0000000000280000-0x00000000002BE000-memory.dmp

          Filesize

          248KB

        • memory/1220-31-0x0000000002600000-0x0000000002601000-memory.dmp

          Filesize

          4KB

        • memory/2604-35-0x0000000000400000-0x000000000043E000-memory.dmp

          Filesize

          248KB

        • memory/2604-2748-0x0000000000400000-0x000000000043E000-memory.dmp

          Filesize

          248KB

        • memory/2604-4153-0x0000000000400000-0x000000000043E000-memory.dmp

          Filesize

          248KB