Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/03/2025, 00:35

General

  • Target

    43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe

  • Size

    973KB

  • MD5

    5e6fd71b7a515479b2e5e77bc7ea22f8

  • SHA1

    394c41cee4b594ea8ba8d0fd6b686721a52e61ad

  • SHA256

    43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b

  • SHA512

    ba6d95ce84501b252b517f363be0d13f2d09e6816bb54160786c281a980bad69cb31d5e1da35d270e970121ca32dc11bcf69c310e222ac95f46ff85926025be2

  • SSDEEP

    24576:Aukx3gKIoADALW7SyoyfWeU/OPFVNm1bOnVVnrQSBjfEpb4vkU:agKBAcmoyeUdkOnVFNERj

Malware Config

Signatures

  • Detect Neshta payload 6 IoCs
  • Neshta

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

  • Neshta family
  • CoreCCC Packer 4 IoCs

    Detects CoreCCC packer used to load .NET malware.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe
    "C:\Users\Admin\AppData\Local\Temp\43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3272
    • C:\Users\Admin\AppData\Local\Temp\43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Modifies system executable filetype association
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    9f3b589134f27b1725ebcf9a38773819

    SHA1

    7f340d406252691ce5be7d1cf03944e87f2fbcc7

    SHA256

    c3d4c8280130810cea46525bc08fabee3fffa14c2650cbd4381bdba5bb56b3d1

    SHA512

    50d1715f39dac2727332f40bad0d881a79a9aad907f2984cfe5129150c2ab67c5474b70772a6d5473d57ef53a39ef723d950f7a536699f3f0a44ecb4212bc49e

  • C:\Users\Admin\AppData\Local\Temp\3582-490\43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe

    Filesize

    933KB

    MD5

    00adeab0f378d5de95302dc7d8514a8e

    SHA1

    2ba7ab229b14fce2605c8356b36845ec967353d0

    SHA256

    6ee6c8aa1228fb108d75477cc9a317876ee86d6f18d92f22cd23d931e5254ccc

    SHA512

    dd90ea6f9b0fca3105ac94229cc0ee55b4dd79ee7d48848a4235693eef9ce1d6d1617d8ca7d3d8f3e5ac49fb18ecfe24c2c99f77c9ab8d67857780b546df0896

  • memory/2216-3-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2216-5-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2216-4-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2216-8-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2216-140-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2216-142-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3272-0-0x0000000075362000-0x0000000075363000-memory.dmp

    Filesize

    4KB

  • memory/3272-1-0x0000000075360000-0x0000000075911000-memory.dmp

    Filesize

    5.7MB

  • memory/3272-2-0x0000000075360000-0x0000000075911000-memory.dmp

    Filesize

    5.7MB

  • memory/3272-113-0x0000000075360000-0x0000000075911000-memory.dmp

    Filesize

    5.7MB