Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2024 22:15

General

  • Target

    49a0151f4124b518d9f3ab909e5479da55f18ddc44b23dbe266a44d500857fd6.exe

  • Size

    90KB

  • MD5

    577a5a19c5016f4a1866588ed115da34

  • SHA1

    a7e9197c8830b9115ed369dce6f14f5b50b1b088

  • SHA256

    49a0151f4124b518d9f3ab909e5479da55f18ddc44b23dbe266a44d500857fd6

  • SHA512

    e9b05a5c033f7078e21af312ddf9881ffaffd44a7cafed450a2bedf5bbc354ff644175af933912da36f1bb3361154fb78c7a3d0a53771df6035c3e14f1199a67

  • SSDEEP

    1536:JxqjQ+P04wsmJCUnEMRH38+cKJ29EHZk4UR80jdqK7ciZ83F3Mw:sr85CUnEeH38jKJ29G1URNJciZ81X

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 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 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\49a0151f4124b518d9f3ab909e5479da55f18ddc44b23dbe266a44d500857fd6.exe
    "C:\Users\Admin\AppData\Local\Temp\49a0151f4124b518d9f3ab909e5479da55f18ddc44b23dbe266a44d500857fd6.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:2512
    • C:\Users\Admin\AppData\Local\Temp\3582-490\49a0151f4124b518d9f3ab909e5479da55f18ddc44b23dbe266a44d500857fd6.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\49a0151f4124b518d9f3ab909e5479da55f18ddc44b23dbe266a44d500857fd6.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2300
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 432
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2340

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\49a0151f4124b518d9f3ab909e5479da55f18ddc44b23dbe266a44d500857fd6.exe

    Filesize

    50KB

    MD5

    f46a2cf2051b7905ff585626efe006a8

    SHA1

    cd1e66b515277ef5ae984eb53f1248e24d2ca43c

    SHA256

    2bbc0d89aacb9ec5bdd5fd173aea4f5993c90596c15512a8bb0db2d8f85d1d7d

    SHA512

    4f3da5a0fa6c761f6e61d270f8f663a46605c696010337015a3709d38e2ab50651c7eefff30b6760d4617c742975751e0016160cd11b57e8ed92e3e4577a084d

  • memory/2300-12-0x0000000073D81000-0x0000000073D82000-memory.dmp

    Filesize

    4KB

  • memory/2300-13-0x0000000073D80000-0x000000007432B000-memory.dmp

    Filesize

    5.7MB

  • memory/2300-14-0x0000000073D80000-0x000000007432B000-memory.dmp

    Filesize

    5.7MB

  • memory/2300-89-0x0000000073D80000-0x000000007432B000-memory.dmp

    Filesize

    5.7MB

  • memory/2340-16-0x0000000000710000-0x0000000000711000-memory.dmp

    Filesize

    4KB

  • memory/2512-90-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2512-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB