Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2024 06:03

General

  • Target

    88d9059d13b543f890b3e6d945772f63b29bdf0345c94365145eb5c827f0f768N.exe

  • Size

    82KB

  • MD5

    a8817ce4ae31fe18f20e8120a7292570

  • SHA1

    b019b0e5fe8d92916d8120ed9bfcae12f46c7393

  • SHA256

    88d9059d13b543f890b3e6d945772f63b29bdf0345c94365145eb5c827f0f768

  • SHA512

    308cf0f15aecf1edd8430db3f6e859857ebd9be8813fbe6e7885cd58f8a0c75cd095db46ba56339fa014a9888741289885b20b8c53c2dfdc8e5fafcd02fff5fc

  • SSDEEP

    1536:JxqjQ+P04wsmJCSt3I9AATBRoR/J+8yG2J:sr85CNTBRoR/J+8yNJ

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.

  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88d9059d13b543f890b3e6d945772f63b29bdf0345c94365145eb5c827f0f768N.exe
    "C:\Users\Admin\AppData\Local\Temp\88d9059d13b543f890b3e6d945772f63b29bdf0345c94365145eb5c827f0f768N.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:3008
    • C:\Users\Admin\AppData\Local\Temp\3582-490\88d9059d13b543f890b3e6d945772f63b29bdf0345c94365145eb5c827f0f768N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\88d9059d13b543f890b3e6d945772f63b29bdf0345c94365145eb5c827f0f768N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:788

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\88d9059d13b543f890b3e6d945772f63b29bdf0345c94365145eb5c827f0f768N.exe

    Filesize

    41KB

    MD5

    dfc8904b5f2035654db1635dc1580a19

    SHA1

    73ca955f0635bbbaffe23935b0cdc3bcef34c02b

    SHA256

    2699bd2c13ee7fcadb36699dcc4b3115f59268ce2fb0d9b2fc153936d1ea534e

    SHA512

    e40a13064ae506c2e39f7c2cdf812689aff0250730d312df649f2ca6afa6c8f030083f00f0ee27bce975a375e96d40b36cd3292653eca16e0d792aff9616c1bf

  • memory/788-12-0x000000007409E000-0x000000007409F000-memory.dmp

    Filesize

    4KB

  • memory/788-13-0x0000000000C30000-0x0000000000C3C000-memory.dmp

    Filesize

    48KB

  • memory/788-14-0x0000000074090000-0x000000007477E000-memory.dmp

    Filesize

    6.9MB

  • memory/3008-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3008-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB