Analysis

  • max time kernel
    157s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    06-02-2022 12:41

General

  • Target

    55a338b1d8ac98b5075c7ea83e27eb457aa0df1684fd923864020e99f7817c2a.exe

  • Size

    1.6MB

  • MD5

    c4ad102a06da79a5ded9cc07a477261d

  • SHA1

    56d35fdc72491488a668dc14f9da84277d592391

  • SHA256

    55a338b1d8ac98b5075c7ea83e27eb457aa0df1684fd923864020e99f7817c2a

  • SHA512

    892a430372fd9457eb97e6cf68c588cd7d0ecd0f72fa4422aedadbcfd2889d545b6054fc87add716d013eb5a239217e9a438ef5f32db89aa0f1b1f52be2c19de

Malware Config

Signatures

  • Detect Neshta Payload 15 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55a338b1d8ac98b5075c7ea83e27eb457aa0df1684fd923864020e99f7817c2a.exe
    "C:\Users\Admin\AppData\Local\Temp\55a338b1d8ac98b5075c7ea83e27eb457aa0df1684fd923864020e99f7817c2a.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Users\Admin\AppData\Local\Temp\3582-490\55a338b1d8ac98b5075c7ea83e27eb457aa0df1684fd923864020e99f7817c2a.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\55a338b1d8ac98b5075c7ea83e27eb457aa0df1684fd923864020e99f7817c2a.exe"
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:972
      • C:\Windows\svchost.com
        "C:\Windows\svchost.com" "C:\PROGRA~2\Adobe\READER~1.0\Reader\READER~1.EXE"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:308
        • C:\PROGRA~2\Adobe\READER~1.0\Reader\READER~1.EXE
          C:\PROGRA~2\Adobe\READER~1.0\Reader\READER~1.EXE
          4⤵
            PID:1904

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\MSOCache\ALLUSE~1\{90140~1\DW20.EXE
      MD5

      9306f2a522a57b846007a08f1ca66f03

      SHA1

      df4ba0ea9393304bce52879d4b9344a0f1277d20

      SHA256

      0b3954c2f43c8c55e3d23bc7c97acf57022b9ced4360fe7d8660e77a1fbb3372

      SHA512

      dfc6336d1115a7337905341d0579700df3f821d4be340faa603a30668152e061818628e7544a2f0b4767c40baffe37554d040644dfd0d1da8ef3de0e25dd171b

    • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe
      MD5

      e0f2257e0ad4b04429c932673ead4884

      SHA1

      352fcc1fe1019cd069ab52b409b31bbd0a08ea9a

      SHA256

      6e11a49479c1d2b35f15901b0700e307712338f343e1c03fcfe715946fab5969

      SHA512

      d77e790e63b1b2307df2ef0bb774bcbfa5cdc716764050dfa055a23449cffa5c6f61759b0819712f3e3be06037cbc3469082ba2b02af990017f28658f0103763

    • C:\MSOCache\ALLUSE~1\{9A861~1\ose.exe
      MD5

      05137767de39f2bb28b365b2238f32e1

      SHA1

      5e62f303be2d32f16da8ebe555eb80491f7c0efb

      SHA256

      ca65573ff40bd61e73cf21f24a122de99e5face2ce75a2e0753f93e10cf6495b

      SHA512

      9f29611adeac506c6db62a47d82fe5891688cfffc7217ad1dd076fc88e54ea4b9291974b168922245f6c8e302f4e03a273bf0ac9942ac4d1cf6c5a6099b9f0be

    • C:\MSOCache\ALLUSE~1\{9A861~1\setup.exe
      MD5

      98359abd5f26fc75169bafd6edcf00cd

      SHA1

      c0bdcc5b5f48c72275f84d6166a42519cc5f2028

      SHA256

      958bf8d76d4de0bbba6aadea0c4aff0ec7be9cc69ab9fa61cd29dcecbf3528fa

      SHA512

      573e374866e93b14cec6b5192ba45529a89c140d023ec0e471bad563fd6893cbef2a2fb0b106732f40fd4a2629869c8074b991539b05ade3d38f32aa26751fe2

    • C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe
      MD5

      9b9869e0df0acac9babac95a1f8d5c7d

      SHA1

      9ea411c302c9a2c565c941631128a7b23992530f

      SHA256

      963167bf45b0acb36b0d968e70e486f0956ace3fe2a48e6e26e9482df829c9d3

      SHA512

      cae5f2e81f7811f6c3307cfbfd2d8e8350bb048333ff3484a090cde2ac13b2709fc0f95f0a851b00d16d27601cb4e457028ecd689b66ed3ac8a716454403c0a2

    • C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE
      MD5

      4ce04c0dd629a2f4af4ad3be07aad000

      SHA1

      f9dc3fe0b2d2298dae957703b437d8d120568865

      SHA256

      449132eb19f76e0d021f524f619e72e0cba989161c3a380268f688fae135e664

      SHA512

      314de1ecf1a2d367631e4a69757db6ff298a956ecbf912a702c381933fc1a262ee9cf70cf4e2f09bac13db743a4591b2c674b19c3d103eeb408f61284b4ac1b9

    • C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE
      MD5

      ab8046d6d42d50ef5431563bdd3c0117

      SHA1

      36d4b3bbc1243aecc3405fca087e37bc195fe412

      SHA256

      2dcb5f295233f7b626e04ef9c5942c804d4a5ea96acc23dd861b5dc99eaae5ba

      SHA512

      72cbdb9963fa540a702d48756e1360f62fc516af007387730e46406f3d57e18bf9602a238326e9791cdc06f955c44995f12b17d665102a49ab56c1d28fe7017a

    • C:\PROGRA~2\MICROS~1\Office14\OIS.EXE
      MD5

      931f0607bfb5a8149c9b14121a9237c4

      SHA1

      92edf8554a4e5fe1a86a157656a9683f47a1017f

      SHA256

      88eebf3fe1e9e82a77a6c5bac14ff2384e59cf1ae576d7f23f3a8fc4ef9bdb82

      SHA512

      7ea52ada3f119fe00dee1ed710eee02ebe80a5adc8a0085b87732e94d5cac0df92210fefc79f6977b0194aed2cff07a4cf53df3e00ebfd0e6fbd3efa0890f7ac

    • C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE
      MD5

      ee65b7a6d357fbecfea9371cda88657d

      SHA1

      b675606e516f20012d66a05a4be5218a34e8025b

      SHA256

      c5aef6e27ea5c33464702068c53099c2134238fccd4e4a010cde1e20affbbf81

      SHA512

      5be3dd1ad2128fa837ecac447beb0866215a07c97d29ff58d8f29bb5b5da2670ed4cad569f307eec86740b974d098ac563f769f7da3062cb4666d72c55337978

    • C:\Users\ALLUSE~1\PACKAG~1\{CA675~1\VCREDI~1.EXE
      MD5

      30f41c2c0417dd0328ce0f0c150275a9

      SHA1

      10c85349c26d746fcd93528ff2c0155daf703fb7

      SHA256

      00098459575636cfeb2c7df17a1d7971b7a61a2e6c14125d758baa13f870963e

      SHA512

      288d429fac506b6d844b72885d2552f86a92ff09b9274fe2a629da9577c3681de8aa92b0cda315a0b0b9282194e29545e40cbcd60f4e58faa4c7c70edb8de317

    • C:\Users\ALLUSE~1\PACKAG~1\{EF6B0~1\VCREDI~1.EXE
      MD5

      b38d3dbb9687fc614d22e72e016bf5f0

      SHA1

      79a7f59d311b3ba8238cbc99ae921bcd9005088f

      SHA256

      ef0a018061cee0ec72240d670a061c76775a80187ecd4b005e4dcf4aa0aeec14

      SHA512

      63b9dd78401577343da4942be2b5124495f1be9a685adb40147a41813782b299484c606ad69be624b509429d9bf912fdee4f7d7e2c2bab5d8ddb33aaa89e7c4e

    • C:\Users\ALLUSE~1\PACKAG~1\{F4220~1\VC_RED~1.EXE
      MD5

      955ceac3b7183ef97f36fa9e892ac4ab

      SHA1

      caf6f55bda39e36f1927f2ca761cb586a18e5b7d

      SHA256

      c6004c82c1a278a079aa8c6aaf371a5f13f5332449987e3cbe2dc772e99c6ede

      SHA512

      78e98b88a20f54d6fa434140afe88e58c3053aae8b2c8bf8bb69277d822086622a7a9aca976aa64bedb609544b980618a10bf88d3b46284e0234f109227ee9ab

    • C:\Users\Admin\AppData\Local\Temp\3582-490\55a338b1d8ac98b5075c7ea83e27eb457aa0df1684fd923864020e99f7817c2a.exe
      MD5

      8f9a1733d2a9aea90186f7f2899fb9db

      SHA1

      cf6b567610932fac8a104a2efccebd7bc732d749

      SHA256

      5682fc04d2034c28ad7882a207407022f541e3efe80337a447ca5a3b457002af

      SHA512

      bb8079624a61975b1d540a85f1bf4fa5474dad32b54f9ca916548c9dcbccc7a6fdedcc5ba29f7fc6aeba01c0f41a5386f892c6b767828e016c4eb51b3ca9d69c

    • C:\Windows\svchost.com
      MD5

      d1499f582a63bc6e26debc4d6c439773

      SHA1

      efff51429486363749484600cab910c0768e85a9

      SHA256

      8005691f4eff8d78f866243532f583826a4c2bdd009eab278c60ef64fc260209

      SHA512

      eadfee975290db3474ec669c83f98f974fe19d85873a4d5344a467ffaf2f689f538152dca598cb246a323a988a2ee9198543d8950bdba59c710c4f2efc412fca

    • C:\Windows\svchost.com
      MD5

      d1499f582a63bc6e26debc4d6c439773

      SHA1

      efff51429486363749484600cab910c0768e85a9

      SHA256

      8005691f4eff8d78f866243532f583826a4c2bdd009eab278c60ef64fc260209

      SHA512

      eadfee975290db3474ec669c83f98f974fe19d85873a4d5344a467ffaf2f689f538152dca598cb246a323a988a2ee9198543d8950bdba59c710c4f2efc412fca

    • \PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe
      MD5

      9b9869e0df0acac9babac95a1f8d5c7d

      SHA1

      9ea411c302c9a2c565c941631128a7b23992530f

      SHA256

      963167bf45b0acb36b0d968e70e486f0956ace3fe2a48e6e26e9482df829c9d3

      SHA512

      cae5f2e81f7811f6c3307cfbfd2d8e8350bb048333ff3484a090cde2ac13b2709fc0f95f0a851b00d16d27601cb4e457028ecd689b66ed3ac8a716454403c0a2

    • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
      MD5

      9e2b9928c89a9d0da1d3e8f4bd96afa7

      SHA1

      ec66cda99f44b62470c6930e5afda061579cde35

      SHA256

      8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

      SHA512

      2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

    • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
      MD5

      9e2b9928c89a9d0da1d3e8f4bd96afa7

      SHA1

      ec66cda99f44b62470c6930e5afda061579cde35

      SHA256

      8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

      SHA512

      2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

    • \Users\Admin\AppData\Local\Temp\3582-490\55a338b1d8ac98b5075c7ea83e27eb457aa0df1684fd923864020e99f7817c2a.exe
      MD5

      8f9a1733d2a9aea90186f7f2899fb9db

      SHA1

      cf6b567610932fac8a104a2efccebd7bc732d749

      SHA256

      5682fc04d2034c28ad7882a207407022f541e3efe80337a447ca5a3b457002af

      SHA512

      bb8079624a61975b1d540a85f1bf4fa5474dad32b54f9ca916548c9dcbccc7a6fdedcc5ba29f7fc6aeba01c0f41a5386f892c6b767828e016c4eb51b3ca9d69c

    • memory/1604-54-0x0000000074F01000-0x0000000074F03000-memory.dmp
      Filesize

      8KB