Analysis

  • max time kernel
    189s
  • max time network
    196s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2022, 21:17

General

  • Target

    4017890c43b7f0ae26dc29d65f09a95195f82395538a5979bc956354ab4e378e.exe

  • Size

    744KB

  • MD5

    6a2ec78ba802e688a49365abf3b9e1a0

  • SHA1

    30cafce26f7acaa98a5a625c82f32c1843210d18

  • SHA256

    4017890c43b7f0ae26dc29d65f09a95195f82395538a5979bc956354ab4e378e

  • SHA512

    76ae6a9dc317737d4589a3ad6205cbd733699b2248122658102edbb3259aab9eea874b871414fb59b6d2ae87067f309bfe77e053fd69e33805490b98030216c3

  • SSDEEP

    12288:XbekMtkfohrPUs37uzHnA6zg5cIsalHERjUrNN/RQ9wgUT5nDEx9XccYRO:XbekYkfohrP337uzHnA6cHswHE/6gUTa

Malware Config

Signatures

  • 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 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4017890c43b7f0ae26dc29d65f09a95195f82395538a5979bc956354ab4e378e.exe
    "C:\Users\Admin\AppData\Local\Temp\4017890c43b7f0ae26dc29d65f09a95195f82395538a5979bc956354ab4e378e.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2820
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4017890c43b7f0ae26dc29d65f09a95195f82395538a5979bc956354ab4e378e.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4017890c43b7f0ae26dc29d65f09a95195f82395538a5979bc956354ab4e378e.exe"
      2⤵
      • Executes dropped EXE
      PID:2116

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\3582-490\4017890c43b7f0ae26dc29d65f09a95195f82395538a5979bc956354ab4e378e.exe

          Filesize

          703KB

          MD5

          1f37165418a09997a9e79a07fcf72565

          SHA1

          a51ded98b45fe8dc40c2c3f245ccc1e1cedd78fe

          SHA256

          41f1d3e7fa5fc43604bd8ffaf0350205f6c34c5a0f69253c43d115564c0a458b

          SHA512

          c9ca4f2fbe13332fb3ece575398e7eaccb43e424ebcb4ec6c18174e7b623427bc9abaaea946f371b31d3b9193a815d8ea9ebcc73dbe9128276c03aaa10c2da60

        • C:\Users\Admin\AppData\Local\Temp\3582-490\4017890c43b7f0ae26dc29d65f09a95195f82395538a5979bc956354ab4e378e.exe

          Filesize

          703KB

          MD5

          1f37165418a09997a9e79a07fcf72565

          SHA1

          a51ded98b45fe8dc40c2c3f245ccc1e1cedd78fe

          SHA256

          41f1d3e7fa5fc43604bd8ffaf0350205f6c34c5a0f69253c43d115564c0a458b

          SHA512

          c9ca4f2fbe13332fb3ece575398e7eaccb43e424ebcb4ec6c18174e7b623427bc9abaaea946f371b31d3b9193a815d8ea9ebcc73dbe9128276c03aaa10c2da60