Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2024 20:09

General

  • Target

    adb018c8cce786b20532b2e81bcdc9bd61e718b25c9629a932638a02256f8a4aN.exe

  • Size

    2.2MB

  • MD5

    e12d7708bdd8105ac662679f152dc9b0

  • SHA1

    fdf6f54b2d66a5c7e229d78c5daa12fd15683835

  • SHA256

    adb018c8cce786b20532b2e81bcdc9bd61e718b25c9629a932638a02256f8a4a

  • SHA512

    dc8351844ce40ac6ff88b8e06177e18e5ab2ab8172c5d8a256a40f16d034b8639568da384e8225cd182002f234f17f8ab2b01f7f36af4d36aea10dc426238346

  • SSDEEP

    49152:Cf9+HnchpRjHxOjFj4YNmJs08wjpDgAMsU58vXZTLj5:CVlhptWFjis08wjpDdU5UJ1

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.

  • 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.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 1 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 use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\adb018c8cce786b20532b2e81bcdc9bd61e718b25c9629a932638a02256f8a4aN.exe
    "C:\Users\Admin\AppData\Local\Temp\adb018c8cce786b20532b2e81bcdc9bd61e718b25c9629a932638a02256f8a4aN.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:2644
    • C:\Users\Admin\AppData\Local\Temp\3582-490\adb018c8cce786b20532b2e81bcdc9bd61e718b25c9629a932638a02256f8a4aN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\adb018c8cce786b20532b2e81bcdc9bd61e718b25c9629a932638a02256f8a4aN.exe"
      2⤵
      • Executes dropped EXE
      PID:2784

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\adb018c8cce786b20532b2e81bcdc9bd61e718b25c9629a932638a02256f8a4aN.exe

    Filesize

    2.2MB

    MD5

    ffe43170e07efd814823960c2bbc8249

    SHA1

    51181fb01bbc9bf7eb5900fcdd04c482dc9f044c

    SHA256

    83635d0430e34420899185c1c8df78ac64b3ae6c81ec0939b6473c08daa93328

    SHA512

    5cffdcb02ed7d9af6d9e571473bc79d16e82e566384005c5f2bbf6c24d5504b5003498fe456f6471d89bde708d2ce278b767f30a2f20b1c71f5a2165d1ab1d0e

  • memory/2644-7-0x0000000002CD0000-0x0000000003292000-memory.dmp

    Filesize

    5.8MB

  • memory/2644-86-0x0000000002CD0000-0x0000000003292000-memory.dmp

    Filesize

    5.8MB

  • memory/2644-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2644-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2784-10-0x0000000000400000-0x00000000009C2000-memory.dmp

    Filesize

    5.8MB