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Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23/11/2024, 23:05

General

  • Target

    5efe5af3a81f92d91ffbf18f05a49024f97a9ec7cc5e7547eabd23de05912a87.exe

  • Size

    868KB

  • MD5

    33fa3c2f5237478b134d64fc07b0491b

  • SHA1

    ad83ed224c34a2b962c3d5e08303449676c11f4e

  • SHA256

    5efe5af3a81f92d91ffbf18f05a49024f97a9ec7cc5e7547eabd23de05912a87

  • SHA512

    ac5499f6ed63f75506bce69286a5e38cea25fa856c7426a76b6d0dfccf94dd095b9921b53b9c7d027f0a430c76dfcb72909913cb353a5cd0c50bc6c8e89297dc

  • SSDEEP

    24576:3T0acJXO+3hlPA5UkS/0grtrDpH6mytQy4OuRhVSxO:BchO+rA5jsrtr56AbRMO

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 6 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 WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5efe5af3a81f92d91ffbf18f05a49024f97a9ec7cc5e7547eabd23de05912a87.exe
    "C:\Users\Admin\AppData\Local\Temp\5efe5af3a81f92d91ffbf18f05a49024f97a9ec7cc5e7547eabd23de05912a87.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:3056
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5efe5af3a81f92d91ffbf18f05a49024f97a9ec7cc5e7547eabd23de05912a87.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5efe5af3a81f92d91ffbf18f05a49024f97a9ec7cc5e7547eabd23de05912a87.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2680

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

  • C:\Users\Admin\AppData\Local\Temp\3582-490\5efe5af3a81f92d91ffbf18f05a49024f97a9ec7cc5e7547eabd23de05912a87.exe

    Filesize

    828KB

    MD5

    e811debff3974eda9f4fb805b17afb91

    SHA1

    ab2c04c40637489b4f2fc4577be6f877644c5be9

    SHA256

    a3727f32971af55a566d39d2c60838d5bcf1b9762fb1e97afd6c5b751a2b47d6

    SHA512

    e4c5e55d6f51888c37966a2a4fedd6a4b6803edf11ba619045e0fac6ccf6493431563361be95d64d2f74413e631e1a5fde6c7355bf0fa87bf724b62a6568a9f4

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/3056-90-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3056-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB