Analysis

  • max time kernel
    130s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 02:30

General

  • Target

    d8e165413de5594745c422b4d4fef6bf008c4245664eb7ba09869f25c2b480a3.exe

  • Size

    426KB

  • MD5

    bfd92d69e9bcbeb7b323f60adfbd85aa

  • SHA1

    c7cb0ba902a0b86cad572f29dc5d3e028d8c3165

  • SHA256

    d8e165413de5594745c422b4d4fef6bf008c4245664eb7ba09869f25c2b480a3

  • SHA512

    233898fa1e3f0423259617639b86aa1181554b0e1db896bc52893c0b565416327ee429089a51d6c998e672b8b5d00b1079f6f393290493e6b35e47e94ac0f75c

  • SSDEEP

    3072:sr85C3d8GsJ2E1RpTLp98nx1YqvbVISpI4Mr2H/7bRXaHBjO:k93KGsJvXinx1Yqvz7u2fBaU

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\d8e165413de5594745c422b4d4fef6bf008c4245664eb7ba09869f25c2b480a3.exe
    "C:\Users\Admin\AppData\Local\Temp\d8e165413de5594745c422b4d4fef6bf008c4245664eb7ba09869f25c2b480a3.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:4904
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d8e165413de5594745c422b4d4fef6bf008c4245664eb7ba09869f25c2b480a3.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d8e165413de5594745c422b4d4fef6bf008c4245664eb7ba09869f25c2b480a3.exe"
      2⤵
      • Executes dropped EXE
      PID:4892

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\d8e165413de5594745c422b4d4fef6bf008c4245664eb7ba09869f25c2b480a3.exe

    Filesize

    385KB

    MD5

    a99c3c4112ca8fb11b646cc751f49b86

    SHA1

    12a794dfb3454bf3905cd364724a6ac2b8c5191d

    SHA256

    07bed8b9b5321bef5a0b1b71fa7f299dd1207214da2e45fdd765a23ff0a3eb64

    SHA512

    9f25a46fc983a4e656f6b907e237290b1df7c16ba738fc3eb72e7b77bbb6b207b98e273cd99493b8e597551ac1b0bc006b774fd534d40d2f1f828f63c0fd6dbc

  • C:\Users\Admin\AppData\Local\Temp\3582-490\d8e165413de5594745c422b4d4fef6bf008c4245664eb7ba09869f25c2b480a3.exe

    Filesize

    385KB

    MD5

    a99c3c4112ca8fb11b646cc751f49b86

    SHA1

    12a794dfb3454bf3905cd364724a6ac2b8c5191d

    SHA256

    07bed8b9b5321bef5a0b1b71fa7f299dd1207214da2e45fdd765a23ff0a3eb64

    SHA512

    9f25a46fc983a4e656f6b907e237290b1df7c16ba738fc3eb72e7b77bbb6b207b98e273cd99493b8e597551ac1b0bc006b774fd534d40d2f1f828f63c0fd6dbc

  • memory/4892-132-0x0000000000000000-mapping.dmp

  • memory/4892-135-0x0000000000F30000-0x0000000000F96000-memory.dmp

    Filesize

    408KB

  • memory/4892-136-0x0000000005D50000-0x00000000062F4000-memory.dmp

    Filesize

    5.6MB

  • memory/4892-137-0x0000000005840000-0x00000000058D2000-memory.dmp

    Filesize

    584KB

  • memory/4892-138-0x0000000005980000-0x000000000598A000-memory.dmp

    Filesize

    40KB