Analysis

  • max time kernel
    146s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 18:11

General

  • Target

    6f53fe1be2b69f1b80afc450bab12ea6772fb9a197630d6dfd9916ea37213bbc.exe

  • Size

    129KB

  • MD5

    955c8fb674c1838021274ff527fff6c9

  • SHA1

    9a328b88c42d3ae6953cce47899224b4d34ef76e

  • SHA256

    6f53fe1be2b69f1b80afc450bab12ea6772fb9a197630d6dfd9916ea37213bbc

  • SHA512

    94fc2d80830abce34966b16a37258ba65d83ccf0b6ce1005258d94499702933238d1b62f3d1c0e4dc3ae3e338ae25793fbdcbd1475d7d95989c34d74fb035b9b

  • SSDEEP

    3072:sr85CciI4uwvPLb2QU/47YPefg/iyS/Wbp:k9FowvPH2QYoJdel

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.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f53fe1be2b69f1b80afc450bab12ea6772fb9a197630d6dfd9916ea37213bbc.exe
    "C:\Users\Admin\AppData\Local\Temp\6f53fe1be2b69f1b80afc450bab12ea6772fb9a197630d6dfd9916ea37213bbc.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:4816
    • C:\Users\Admin\AppData\Local\Temp\3582-490\6f53fe1be2b69f1b80afc450bab12ea6772fb9a197630d6dfd9916ea37213bbc.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\6f53fe1be2b69f1b80afc450bab12ea6772fb9a197630d6dfd9916ea37213bbc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3104
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 924
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:332

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\6f53fe1be2b69f1b80afc450bab12ea6772fb9a197630d6dfd9916ea37213bbc.exe

    Filesize

    89KB

    MD5

    1175a3e22b2e0f821814cba157ff959c

    SHA1

    2d1fa56afddb6e798c7319c4dc31c59de45fc677

    SHA256

    c3ed623572769b4271f6ebb804ceaad903afeee9f68506c7d7bbb08eaf57f7a4

    SHA512

    5584a74a69d441711199e4d379340512ab3049f5ce8b7769810bd7beee6b249b8377ec88785436c36a1d62b428b9445c474fc19ffad4f491411a74e64fdab8f5

  • C:\Users\Admin\AppData\Local\Temp\3582-490\6f53fe1be2b69f1b80afc450bab12ea6772fb9a197630d6dfd9916ea37213bbc.exe

    Filesize

    89KB

    MD5

    1175a3e22b2e0f821814cba157ff959c

    SHA1

    2d1fa56afddb6e798c7319c4dc31c59de45fc677

    SHA256

    c3ed623572769b4271f6ebb804ceaad903afeee9f68506c7d7bbb08eaf57f7a4

    SHA512

    5584a74a69d441711199e4d379340512ab3049f5ce8b7769810bd7beee6b249b8377ec88785436c36a1d62b428b9445c474fc19ffad4f491411a74e64fdab8f5

  • memory/332-136-0x0000000000000000-mapping.dmp

  • memory/3104-132-0x0000000000000000-mapping.dmp

  • memory/3104-135-0x00007FFE97F50000-0x00007FFE98986000-memory.dmp

    Filesize

    10.2MB