Analysis

  • max time kernel
    82s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03/11/2024, 10:43

General

  • Target

    9d2ae8e84488136180373aa2c739f3980665440d81ccfb5386bd23806cf5301eN.exe

  • Size

    4.2MB

  • MD5

    987c2be8cc1e6e87621dc5286c24fbc0

  • SHA1

    2b2252289c256c4c73bacefdd5c3d382acb28751

  • SHA256

    9d2ae8e84488136180373aa2c739f3980665440d81ccfb5386bd23806cf5301e

  • SHA512

    e5b65cf0fcd8dd66bfbf2d88de63edf70c677be9693ae47fc847dd02cf5837e0ad885f1ff6c54a579d8ec4e62dca5216bb9f0aaf257f8638540d76886ddba815

  • SSDEEP

    98304:Gy2FDtK6lMEbaIpRV5lKuvZOfVDn+TblLCQZYrJ:f2FDthmEJVTKuhOtiH8QmrJ

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 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\9d2ae8e84488136180373aa2c739f3980665440d81ccfb5386bd23806cf5301eN.exe
    "C:\Users\Admin\AppData\Local\Temp\9d2ae8e84488136180373aa2c739f3980665440d81ccfb5386bd23806cf5301eN.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:1088
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9d2ae8e84488136180373aa2c739f3980665440d81ccfb5386bd23806cf5301eN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9d2ae8e84488136180373aa2c739f3980665440d81ccfb5386bd23806cf5301eN.exe"
      2⤵
      • Executes dropped EXE
      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\9d2ae8e84488136180373aa2c739f3980665440d81ccfb5386bd23806cf5301eN.exe

    Filesize

    4.2MB

    MD5

    fdfdaabf7d051941e96091f972db8dca

    SHA1

    e8b214fcade85cefde255e8d6e9ed1cd87c0887d

    SHA256

    bf59ec08797546da7a7d034a8212883504c2298528cac73fed722e88e100d70c

    SHA512

    d793af54fd6cd0c2627613075c5c3717c5d0c69a7d73488feab6987683c2d1c195c0adf77260c402a9c376d38db0a8bb56ff29b8510004e48f4d3bbb1b9aae7a

  • memory/1088-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1088-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB