Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10/10/2024, 21:16

General

  • Target

    50e75a0b9ecd6c229405accc8718415a754070793387eded3dd9b356643cd85a.exe

  • Size

    167KB

  • MD5

    7b29b37be1a30faccb64699dbf47083c

  • SHA1

    1fbed0fe9557fc9bec5e517a25f3287784db11b6

  • SHA256

    50e75a0b9ecd6c229405accc8718415a754070793387eded3dd9b356643cd85a

  • SHA512

    30d14dbd5d9bc5192cd6368937c7001b7a8f3b65d6c7bec0c8fc00ffef65d76665b6c8534342c3101285a9aaf9e6701b88c2785f67d00b04f2c0f34cd1017620

  • SSDEEP

    3072:sr85Ce9zpLFaWDetR2SB8DApWB8DApxK5:k9CpaWk8DV8DGK5

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.

  • 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 behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50e75a0b9ecd6c229405accc8718415a754070793387eded3dd9b356643cd85a.exe
    "C:\Users\Admin\AppData\Local\Temp\50e75a0b9ecd6c229405accc8718415a754070793387eded3dd9b356643cd85a.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:2868
    • C:\Users\Admin\AppData\Local\Temp\3582-490\50e75a0b9ecd6c229405accc8718415a754070793387eded3dd9b356643cd85a.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\50e75a0b9ecd6c229405accc8718415a754070793387eded3dd9b356643cd85a.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2080
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 472
        3⤵
          PID:2264

    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\50e75a0b9ecd6c229405accc8718415a754070793387eded3dd9b356643cd85a.exe

      Filesize

      126KB

      MD5

      f2629dfd0561061d855740fcc090c73f

      SHA1

      d4a98017e1e3ac84262ba190dac99ca2097e3641

      SHA256

      acd7d308fbd0bfec2c876e4a3109a93087b90b8b27d40e509eebb1eedc1d3d81

      SHA512

      a2dad6be2e678bbdb52935edc156941e29f595a9cc11af0cc749a62c2d6898ee85b21183fac155bfe60a5b2c81a575615a035035d624238c49e1f3b75490395e

    • memory/2080-11-0x000007FEF5FFE000-0x000007FEF5FFF000-memory.dmp

      Filesize

      4KB

    • memory/2080-12-0x000007FEF5D40000-0x000007FEF66DD000-memory.dmp

      Filesize

      9.6MB

    • memory/2080-13-0x000007FEF5D40000-0x000007FEF66DD000-memory.dmp

      Filesize

      9.6MB

    • memory/2080-87-0x000007FEF5D40000-0x000007FEF66DD000-memory.dmp

      Filesize

      9.6MB

    • memory/2264-14-0x0000000000460000-0x0000000000461000-memory.dmp

      Filesize

      4KB

    • memory/2868-88-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2868-90-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB