Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-10-2024 01:47

General

  • Target

    4a2e061d475c8cd627408d3e894c7b6c5b0540950d3cdcd81096b472bd3725cbN.exe

  • Size

    1.9MB

  • MD5

    ca9ee7582af82db82cf8871b632bd270

  • SHA1

    f0e5b7c41c18bc4af1b33da38ee955762efb8a77

  • SHA256

    4a2e061d475c8cd627408d3e894c7b6c5b0540950d3cdcd81096b472bd3725cb

  • SHA512

    d6c4c42c03f5c7d0e490baa089474650a1ed771c3a98d35dc0db98cfb49a640f70aef6d17bd8abe7e0c700da8b2e8f763e1fcfd1eba77f4718857e2b9477dbde

  • SSDEEP

    49152:xVHFXSFEmqiDqCbS1gickVsPTpuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuTuuuH:xVHFXSCmqsSgfkVsNuuuuuuuuuuuuuuX

Malware Config

Signatures

  • Detect Neshta payload 3 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
  • Loads dropped DLL 3 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 use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a2e061d475c8cd627408d3e894c7b6c5b0540950d3cdcd81096b472bd3725cbN.exe
    "C:\Users\Admin\AppData\Local\Temp\4a2e061d475c8cd627408d3e894c7b6c5b0540950d3cdcd81096b472bd3725cbN.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:2228
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4a2e061d475c8cd627408d3e894c7b6c5b0540950d3cdcd81096b472bd3725cbN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4a2e061d475c8cd627408d3e894c7b6c5b0540950d3cdcd81096b472bd3725cbN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      PID:2188

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • \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\4a2e061d475c8cd627408d3e894c7b6c5b0540950d3cdcd81096b472bd3725cbN.exe

    Filesize

    1.9MB

    MD5

    06e95b1433c42c0299e0c9acc2eae77b

    SHA1

    3666bd312d54ee6ee8c11fbef3e3adc213a07fd1

    SHA256

    2a9f984eaceeafb5a9064483c91b0237ecbef1e9027c46926b04dc31ac5e0d4b

    SHA512

    b4f2ce1260f40f18bce27602e641600415a7ff06e3bcf969a3a8bd8c05d1347190ba94092323aad407e56a7b972780562ea696736d8090d96c08efe2d13d78cf

  • memory/2228-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2228-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB