Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2024 20:00

General

  • Target

    bbf86ea8c8c5d7d8b9b86ab6e9f3f223f07301d020b3b468e58aabd82d7f2013N.exe

  • Size

    962KB

  • MD5

    df0e04d1070902440edd81e6a80da070

  • SHA1

    e44739e8c6d4348de0434030754b978d401911c3

  • SHA256

    bbf86ea8c8c5d7d8b9b86ab6e9f3f223f07301d020b3b468e58aabd82d7f2013

  • SHA512

    3b2868c8af58539b8dfce9d46d09a8c8ba56d9b6cb957817c37c86e5179c589135d3f6dc23a44531de606f619ef758e74903b6fe83a05c8841c0b6c623b2f476

  • SSDEEP

    24576:kHF/xZkg6Yf5HnfpFFFLChKMdDBbPepzz:WZkg6Yf5/pFFFOhKMdDBU

Malware Config

Signatures

  • Neshta

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

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

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

  • Executes dropped EXE 1 IoCs
  • 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.

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 55 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bbf86ea8c8c5d7d8b9b86ab6e9f3f223f07301d020b3b468e58aabd82d7f2013N.exe
    "C:\Users\Admin\AppData\Local\Temp\bbf86ea8c8c5d7d8b9b86ab6e9f3f223f07301d020b3b468e58aabd82d7f2013N.exe"
    1⤵
    • 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
    • Suspicious use of WriteProcessMemory
    PID:3548
    • C:\Users\Admin\AppData\Local\Temp\3582-490\bbf86ea8c8c5d7d8b9b86ab6e9f3f223f07301d020b3b468e58aabd82d7f2013N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\bbf86ea8c8c5d7d8b9b86ab6e9f3f223f07301d020b3b468e58aabd82d7f2013N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2388

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

    c324431305861add7ddf9186a9221bd9

    SHA1

    61855e1f81606f3cb336f842a1cdd697c7a40912

    SHA256

    f331213f5bcfed2a6dba0dc0c97b5b309c00b013dc47bdb4726d51cf2c274570

    SHA512

    4b532b2bf6eaf3f618bb08b0a6f7af88ce23d76df146b2d007d5a8224ea0463525a86aacc996468cd3a513404aa66cbc516ed27aa9bd142e46492b160d411dc8

  • C:\Users\Admin\AppData\Local\Temp\3582-490\bbf86ea8c8c5d7d8b9b86ab6e9f3f223f07301d020b3b468e58aabd82d7f2013N.exe

    Filesize

    922KB

    MD5

    7ce89829f9fb955dc377529c461852fd

    SHA1

    8b14f5345bfcfac08c31c284c1a0eee2cd53bcfb

    SHA256

    9775b4bbe23b8eb93727efe0a6d0b160ae5132a10b223f43200499cf0051a18f

    SHA512

    7b9cd587ba53f632a1eff914a6a4bfc345b2232ed6dc02dfefa9bc9aebe06ff7836c1698077f41483a34b0610e92549b1a4baf8b9e9b29c28469f53ec6722e0c

  • memory/3548-94-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3548-95-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3548-97-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB