Analysis

  • max time kernel
    16s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2024, 08:07

General

  • Target

    3195e0868a8cf9d170dc98a4f0e9d43b42b94d87bb4dc4cddfaa27158c00be1dN.exe

  • Size

    160KB

  • MD5

    f19ae2abc3f9a94cc6984ca8364fdac0

  • SHA1

    02edf3c87adc08047e2df6d4067ef5b29e61e5d4

  • SHA256

    3195e0868a8cf9d170dc98a4f0e9d43b42b94d87bb4dc4cddfaa27158c00be1d

  • SHA512

    10ee09caf9410025ee34f93c9f35a0d505b41fdc1f9ebe9f02ae611fae22e567114c363eeb98d865bcd16f503554ce3fd5956fa55f3934a9046d102ddad0bd59

  • SSDEEP

    3072:sr85CebEXulP+Guu8RVn5IsB8DApWB8DApFE3roM8:k93unGZ8D38DKTM8

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\3195e0868a8cf9d170dc98a4f0e9d43b42b94d87bb4dc4cddfaa27158c00be1dN.exe
    "C:\Users\Admin\AppData\Local\Temp\3195e0868a8cf9d170dc98a4f0e9d43b42b94d87bb4dc4cddfaa27158c00be1dN.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:2644
    • C:\Users\Admin\AppData\Local\Temp\3582-490\3195e0868a8cf9d170dc98a4f0e9d43b42b94d87bb4dc4cddfaa27158c00be1dN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\3195e0868a8cf9d170dc98a4f0e9d43b42b94d87bb4dc4cddfaa27158c00be1dN.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 476
        3⤵
          PID:2716

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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\3195e0868a8cf9d170dc98a4f0e9d43b42b94d87bb4dc4cddfaa27158c00be1dN.exe

      Filesize

      119KB

      MD5

      d8c929a1bf135c42d2e1f417e5c5f29e

      SHA1

      8893a3a6580587c7fb1bcf859e4ade62d66b2636

      SHA256

      1bc7b377d214808f02c94ffe7cf9cc3151ec6a5d37f5d793710284a3ddfa852b

      SHA512

      8749d224aba71ba327cf0029e1ea52a3e7762f105a28bdb16ef5ac265115a84c4a9f61cf229658c0a0f886be235aed4c030a3f05a232ec6a3d48459993e90685

    • memory/2644-88-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2644-90-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2716-13-0x0000000000470000-0x0000000000471000-memory.dmp

      Filesize

      4KB

    • memory/2980-9-0x000007FEF62EE000-0x000007FEF62EF000-memory.dmp

      Filesize

      4KB

    • memory/2980-12-0x000007FEF6030000-0x000007FEF69CD000-memory.dmp

      Filesize

      9.6MB

    • memory/2980-14-0x000007FEF62EE000-0x000007FEF62EF000-memory.dmp

      Filesize

      4KB

    • memory/2980-87-0x000007FEF6030000-0x000007FEF69CD000-memory.dmp

      Filesize

      9.6MB