Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    16-11-2024 20:40

General

  • Target

    c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe

  • Size

    141KB

  • MD5

    30ab0ab4dc2444baf04897fc4f7c9160

  • SHA1

    131773c3924a633138de8a57de044bac1ad48a53

  • SHA256

    c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036

  • SHA512

    74b5b50d0805021c3061796ee7519cf9a60c503a1287136507c9538f3371e491e3bf9417b052f5bcd0e893ea7b09d80aa0d67683ef05a9b351342a27fe756c31

  • SSDEEP

    3072:sr85CORD5bLV57y4jem7y6t6NRCywDw1DiJku6UY:k9UD5157y4j9ET4DtOUY

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.

  • 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\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe
    "C:\Users\Admin\AppData\Local\Temp\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.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:2524
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2212
      • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
        "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\3582-490\
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2808

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\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe

    Filesize

    100KB

    MD5

    2df960e152d15e4f65872c989a72a908

    SHA1

    64c0b072f94c4ca8b8945c8ffde701c31b125525

    SHA256

    22866c28098bc466674f7c760bce8dbbd2edac18c4b3688e68dc1a701585521e

    SHA512

    3e98c6375ae14101583dbb3438e7b48c157bba83499d159da0edf561a8a57b9595cd05b10e14992eefc5841f39c109a263b65c2b88e040bfd5397c57cdf42bb8

  • \Users\Admin\AppData\Local\Temp\nsy1F73.tmp\System.dll

    Filesize

    22KB

    MD5

    b361682fa5e6a1906e754cfa08aa8d90

    SHA1

    c6701aee0c866565de1b7c1f81fd88da56b395d3

    SHA256

    b711c4f17690421c9dc8ddb9ed5a9ddc539b3a28f11e19c851e25dcfc7701c04

    SHA512

    2778f91c9bcf83277d26c71118a1ccb0fb3ce50e89729f14f4915bc65dd48503a77b1e5118ce774dea72f5ce3cc8681eb9ca3c55cf90e9f61a177101ba192ae9

  • memory/2524-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2524-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB