Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-01-2025 18:04

General

  • Target

    58cc4f8c9ccec8b411cab5ed1307b5290f2db11cc8b2e8d5207eaa8a3e5c0adbN.exe

  • Size

    104KB

  • MD5

    b79adaed99d673d094aabbbc254485f0

  • SHA1

    df719921fe6dca100838377bce7505148437f70a

  • SHA256

    58cc4f8c9ccec8b411cab5ed1307b5290f2db11cc8b2e8d5207eaa8a3e5c0adb

  • SHA512

    5e74a2cdb20e64dd75e983d53f362740b51a7b87cc27b53180c45993494726907f952349f84a9b530bc1c8e2324a90bc03ac15ea32a85ef2a70244d58741649f

  • SSDEEP

    1536:JxqjQ+P04wsmJC14WAroKxjsjuR9XfIc3oRMDHhMiGRoQ20HhN+jxz:sr85C1tAroK1yxzMDBWvHh41z

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\58cc4f8c9ccec8b411cab5ed1307b5290f2db11cc8b2e8d5207eaa8a3e5c0adbN.exe
    "C:\Users\Admin\AppData\Local\Temp\58cc4f8c9ccec8b411cab5ed1307b5290f2db11cc8b2e8d5207eaa8a3e5c0adbN.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:2196
    • C:\Users\Admin\AppData\Local\Temp\3582-490\58cc4f8c9ccec8b411cab5ed1307b5290f2db11cc8b2e8d5207eaa8a3e5c0adbN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\58cc4f8c9ccec8b411cab5ed1307b5290f2db11cc8b2e8d5207eaa8a3e5c0adbN.exe"
      2⤵
      • Executes dropped EXE
      PID:3032

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\58cc4f8c9ccec8b411cab5ed1307b5290f2db11cc8b2e8d5207eaa8a3e5c0adbN.exe

    Filesize

    63KB

    MD5

    27a5d3975fd6074870ae3a278b48ec24

    SHA1

    649b5a9b5d2e400818931f4dfe5c1e59508429e1

    SHA256

    b20a9f38af0ead513029ba46e704419687364d84c7b044b61b02ce2e81538998

    SHA512

    7d5c952b5717ffb418ae2d9d1cbea625dc091fdcbc1c2c5d1db8c377fbc35429c9438d0b6633c9395ae70be27911c7ba704f59e1c4c95dab6a93ee4e18c9f936

  • memory/2196-82-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2196-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB