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Analysis

  • max time kernel
    17s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bbf86ea8c8c5d7d8b9b86ab6e9f3f223f07301d020b3b468e58aabd82d7f2013N.exe
    "C:\Users\Admin\AppData\Local\Temp\bbf86ea8c8c5d7d8b9b86ab6e9f3f223f07301d020b3b468e58aabd82d7f2013N.exe"
    1⤵
    • Loads dropped DLL
    • 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:2556
    • 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 behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2084

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    d30b36247185a670852f45098eb9a8e6

    SHA1

    f37447d3b870174444e0834bd13629fc9804e6f2

    SHA256

    e57de7cf83c9f5dc4810d748b3907f65f2909eb6391c140ed0b049c452f7d270

    SHA512

    d1100b0403e95b035e66841db8a64a710a5f7f1b984f51089259468a21ef7696d65e7a3e84b2f774b000c8016eead784810b336455fc9cd7b6663ebf9abb433b

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

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

    Filesize

    922KB

    MD5

    7ce89829f9fb955dc377529c461852fd

    SHA1

    8b14f5345bfcfac08c31c284c1a0eee2cd53bcfb

    SHA256

    9775b4bbe23b8eb93727efe0a6d0b160ae5132a10b223f43200499cf0051a18f

    SHA512

    7b9cd587ba53f632a1eff914a6a4bfc345b2232ed6dc02dfefa9bc9aebe06ff7836c1698077f41483a34b0610e92549b1a4baf8b9e9b29c28469f53ec6722e0c

  • memory/2556-83-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2556-85-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB