Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-10-2024 00:04

General

  • Target

    63162dfd1c118d16026ef441dd8ad7f22eba00495a6ddca1f55f81ab51166e95N.exe

  • Size

    879KB

  • MD5

    66a7c9472e9d3a0b32cfe2a54ee883d0

  • SHA1

    31974082eee9f95cbc07c0d07f1783e7ea4f234d

  • SHA256

    63162dfd1c118d16026ef441dd8ad7f22eba00495a6ddca1f55f81ab51166e95

  • SHA512

    f86131481c773a89bd25edb41b383ae18c09b9a7abc03b5fe6d88baecd1f28429f42b24fb9d31da26ccc8657cfcadce8df677ac524026d4f45212a2234566061

  • SSDEEP

    12288:RXR6Bnf+Tac0RDffXJjyYpCMoNHSy5viczyIH047K0fXJjyppy5AtT:RXslf+2DR7BWYpCMo44l5O0BWppyIT

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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\63162dfd1c118d16026ef441dd8ad7f22eba00495a6ddca1f55f81ab51166e95N.exe
    "C:\Users\Admin\AppData\Local\Temp\63162dfd1c118d16026ef441dd8ad7f22eba00495a6ddca1f55f81ab51166e95N.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:2120
    • C:\Users\Admin\AppData\Local\Temp\3582-490\63162dfd1c118d16026ef441dd8ad7f22eba00495a6ddca1f55f81ab51166e95N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\63162dfd1c118d16026ef441dd8ad7f22eba00495a6ddca1f55f81ab51166e95N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:264
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 264 -s 624
        3⤵
          PID:2776

    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\63162dfd1c118d16026ef441dd8ad7f22eba00495a6ddca1f55f81ab51166e95N.exe

      Filesize

      838KB

      MD5

      8185e46d007388b008095b37941aa728

      SHA1

      ccbb657b7bc362c5bf20546207b793b930ee7d49

      SHA256

      45b085f0c58506e9d974eb902f1f8ad04ef40593a830d9c983093c2c9f204c73

      SHA512

      39ac159d91941f7a318e30882461ebb3acd368f0015d6b5aca34cdc819ea0159dc1dd125d9ddfdf0be1e4c006fc69d4dc94bd1b1cc0633041ed3028c3591d20b

    • memory/264-11-0x000007FEF5903000-0x000007FEF5904000-memory.dmp

      Filesize

      4KB

    • memory/264-12-0x0000000000B90000-0x0000000000C60000-memory.dmp

      Filesize

      832KB

    • memory/264-35-0x000007FEF5900000-0x000007FEF62EC000-memory.dmp

      Filesize

      9.9MB

    • memory/264-86-0x000007FEF5900000-0x000007FEF62EC000-memory.dmp

      Filesize

      9.9MB

    • memory/2120-87-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2120-89-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB