Analysis

  • max time kernel
    119s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-01-2025 18:00

General

  • Target

    4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe

  • Size

    3.1MB

  • MD5

    8ffd07557fb0b3f892e30f900cb6afb0

  • SHA1

    10264b488df86b2ca2a06e5a321720cb75a3c239

  • SHA256

    4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059e

  • SHA512

    91452c2bf6e78bb0c36683eee0d1058158bd26aa9c6e4d054959772f079503376341e1fcdbc4ee755309c314608d3da9158d6f9b1b641d215fa4f055e8c8597f

  • SSDEEP

    49152:ZQVD8jdMUOyeEpIC7F/iw+6pdM9X376IbAMINhqhFN7f6LlGiFkcmHAgC9T3G:6VwB8E/iUdM9X3ucFN7f6zdMHi3G

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 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\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe
    "C:\Users\Admin\AppData\Local\Temp\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.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:2504
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe"
      2⤵
      • Executes dropped EXE
      PID:2408

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\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe

    Filesize

    3.1MB

    MD5

    4b41daf9ddda07604381c37d2f4e8d93

    SHA1

    5988a491b5558a243db35d980b9d1677fbe889af

    SHA256

    1babd328980432eb3841fb68d916184765456543120c65b319c9af9823588f2a

    SHA512

    39864fc1ace7f42278d6012e366ef767b26f401344e143c1e5dad85adcff1e63ecdcedd26a0f390225393a70ea55064c19567cd5d12ace22a45903dad44860a0

  • memory/2408-12-0x0000000000C60000-0x000000000174D000-memory.dmp

    Filesize

    10.9MB

  • memory/2504-9-0x0000000002D50000-0x000000000383D000-memory.dmp

    Filesize

    10.9MB

  • memory/2504-86-0x0000000002D50000-0x000000000383D000-memory.dmp

    Filesize

    10.9MB

  • memory/2504-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2504-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB