Analysis

  • max time kernel
    91s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 19:58

General

  • Target

    2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe

  • Size

    611KB

  • MD5

    88ae8884950c1c9a6cb2f96f89eff530

  • SHA1

    4e040941074159ecab652554b7b6039a45434d23

  • SHA256

    2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4

  • SHA512

    39c0ee4e0276d00fb7ca08001182dc23e578bae8a5709cdaa6d50afd97013cccd643bd96ddab3f1c53f007d75daa9e4286be1876ae72f566545f362a0771f69b

  • SSDEEP

    12288:CB0JfiwSdYSui8zZH94I3H1v1Bg2lIj/g0k5E73Az4:CsfiTdYSuVzZH9tH1v1Bbudkl4

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 2 IoCs
  • Loads dropped DLL 4 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.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 3 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 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe
    "C:\Users\Admin\AppData\Local\Temp\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.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:2296
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2964
      • C:\Windows\Temp\{35BA91F4-4254-4988-8A4E-E73BA158E850}\.cr\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe
        "C:\Windows\Temp\{35BA91F4-4254-4988-8A4E-E73BA158E850}\.cr\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\3582-490\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe" -burn.filehandle.attached=180 -burn.filehandle.self=188
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Windows\Temp\{401C6E17-F9DA-41F7-9B7D-23E43F15163C}\.ba\logo.png

    Filesize

    2KB

    MD5

    80df19f22c1d266c06ace7c8b9831762

    SHA1

    65ce850433dbd3f220a3c1dd39736315376b5a5c

    SHA256

    e8e37845754f62b6426ce39cbda1db032856bd551e6d39bbaca06aa7c44625c4

    SHA512

    5acd8ce85a9e711036cb840b0779d8cbeea0d4822e866e7def7eec6e4ec2633dca2fa295a74392fe7a4306f84cef4277d4401364253c0f8471b13e8e9c9a6a2c

  • \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\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe

    Filesize

    570KB

    MD5

    6d902770a1a701dfcb543950deff5ee7

    SHA1

    b5f7bf7dec41f56384bbdd7d75cc57ea62557e05

    SHA256

    6e0e287e1294ef6b326e96bd3f4e6c9efd80b107dedb2601f9debd6e96f138b3

    SHA512

    18c7b01c0864d555a8cc1fce6337e4f62b245058a10b72fcea4c95712b90ea77f15d4484cb137ce5561d3f9ecd65655ed21a9ff5d0bd40d0abc8bb483807e487

  • \Windows\Temp\{401C6E17-F9DA-41F7-9B7D-23E43F15163C}\.ba\wixstdba.dll

    Filesize

    184KB

    MD5

    fe7e0bd53f52e6630473c31299a49fdd

    SHA1

    f706f45768bfb95f4c96dfa0be36df57aa863898

    SHA256

    2bea14d70943a42d344e09b7c9de5562fa7e109946e1c615dd584da30d06cc80

    SHA512

    feed48286b1e182996a3664f0facdf42aae3692d3d938ea004350c85764db7a0bea996dfddf7a77149c0d4b8b776fb544e8b1ce5e9944086a5b1ed6a8a239a3c

  • memory/2296-105-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2296-107-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB