Analysis

  • max time kernel
    75s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-01-2025 10:51

General

  • Target

    0993f9fb3a617ba3374c4ae15177564108fdebe10bf1c482ad8a513b01cd5ba0N.exe

  • Size

    680KB

  • MD5

    6a95a04e4a694abfa5d164164eab0fc0

  • SHA1

    f89b6cce05f883919f5a48e4ec72e33780a0cc33

  • SHA256

    0993f9fb3a617ba3374c4ae15177564108fdebe10bf1c482ad8a513b01cd5ba0

  • SHA512

    1fea0ee3e0529a83481aa8c7f2399328f51da4764f607affd480750573bdaf32288b66ef36863b1a78a6efcb6a6bec2b2088b4879e4979e547b16dbb593cc3c8

  • SSDEEP

    6144:k9biYsJvG69FkE3ViOjlXKb+I4YGyra8t3PXq9LUzE08EPr5u9P0LGarSA:vFp3VXVU+I42raYiREPr5u9P0gA

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 2 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\0993f9fb3a617ba3374c4ae15177564108fdebe10bf1c482ad8a513b01cd5ba0N.exe
    "C:\Users\Admin\AppData\Local\Temp\0993f9fb3a617ba3374c4ae15177564108fdebe10bf1c482ad8a513b01cd5ba0N.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:1880
    • C:\Users\Admin\AppData\Local\Temp\3582-490\0993f9fb3a617ba3374c4ae15177564108fdebe10bf1c482ad8a513b01cd5ba0N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\0993f9fb3a617ba3374c4ae15177564108fdebe10bf1c482ad8a513b01cd5ba0N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2124

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

  • C:\Users\Admin\AppData\Local\Temp\3582-490\0993f9fb3a617ba3374c4ae15177564108fdebe10bf1c482ad8a513b01cd5ba0N.exe

    Filesize

    639KB

    MD5

    7699dee81a8d4086ae0eec5be8b9c7a6

    SHA1

    c663bd3313dbd93b7c937758650a70204664c1f4

    SHA256

    c2d94e2853125e43dcd106d8215c17eaff1b5b1a7b169c4ccb7a01be7b8029fb

    SHA512

    6321c5641e046b1daee2ac899665e05e1345eab7257f57785bcd56caa077699f34a4c447e4a9574206a579017ed0d5d8aebb14c7e64080969466b0685c727c03

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/1880-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1880-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB