Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    10-12-2024 13:31

General

  • Target

    e25c8577c64e3510a865feed48dd1420b3c3d831b196d09b0aa0b42635b4a1dfN.exe

  • Size

    1.0MB

  • MD5

    473bf3587e82714e8ba20328531f5810

  • SHA1

    89d5774168162e5f7127730a4ede1df68f0ec731

  • SHA256

    e25c8577c64e3510a865feed48dd1420b3c3d831b196d09b0aa0b42635b4a1df

  • SHA512

    370f5071f1005f9ecad91228e25ba726efbfaf76714db6cb249efba7f9f1fca2ec8a9ce7f1a90bb8ece4656262dbf0ccfae6e492665f3fe69675acf4340c5f5d

  • SSDEEP

    24576:tfySSQydK/3chi6zkOW5OFzJKh5qzwjO0h0YT+:xvykkGOW5OFzJeBjOuE

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\e25c8577c64e3510a865feed48dd1420b3c3d831b196d09b0aa0b42635b4a1dfN.exe
    "C:\Users\Admin\AppData\Local\Temp\e25c8577c64e3510a865feed48dd1420b3c3d831b196d09b0aa0b42635b4a1dfN.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:2648
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e25c8577c64e3510a865feed48dd1420b3c3d831b196d09b0aa0b42635b4a1dfN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e25c8577c64e3510a865feed48dd1420b3c3d831b196d09b0aa0b42635b4a1dfN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2632

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\e25c8577c64e3510a865feed48dd1420b3c3d831b196d09b0aa0b42635b4a1dfN.exe

    Filesize

    1004KB

    MD5

    8c4859235602507f6dc3a2678ba809b4

    SHA1

    4686f0e82fdc8042821142ca2148b10d10ce7ec2

    SHA256

    246209db1c68341848e87d7cb39f5c0e85592f7b790746f8dcf4aa561f1c944b

    SHA512

    b5139b5d0f899da79a3df28a3f3d5926ce6883345ca6ed94bc0d08afff9b001161568c80a0a917fbb467e77ae07843836a96c27910897b5a05835cebb7eff3b8

  • memory/2648-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2648-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB