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Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    01/07/2024, 00:47

General

  • Target

    9f6f0bfabcf0ff3b9e46e7cc7f584d5b2f79a9357afe7e7a3dbe89ccb588db38.exe

  • Size

    2.5MB

  • MD5

    ded03d57644f017ff167459d8a87f0a1

  • SHA1

    0ee7a5dd4fa01acd351cbdbbfbab109715e46366

  • SHA256

    9f6f0bfabcf0ff3b9e46e7cc7f584d5b2f79a9357afe7e7a3dbe89ccb588db38

  • SHA512

    99c67bce573fad9705a8a407049e855adf34ffa7e5caa5caa6b91a1445cf1b928016ba4d3662e4a2ebedbfcaef51b2770cb545f45e0f70f4d0a3e47d0f437173

  • SSDEEP

    49152:Nbbh9gRrdo042w4BMwRP9TA+OG/Xo/X2dQXLs58gt7CePlwlj:Blso2wKMw70+Jo/X883CPlwlj

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 2 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f6f0bfabcf0ff3b9e46e7cc7f584d5b2f79a9357afe7e7a3dbe89ccb588db38.exe
    "C:\Users\Admin\AppData\Local\Temp\9f6f0bfabcf0ff3b9e46e7cc7f584d5b2f79a9357afe7e7a3dbe89ccb588db38.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2400
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9f6f0bfabcf0ff3b9e46e7cc7f584d5b2f79a9357afe7e7a3dbe89ccb588db38.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9f6f0bfabcf0ff3b9e46e7cc7f584d5b2f79a9357afe7e7a3dbe89ccb588db38.exe"
      2⤵
      • Executes dropped EXE
      PID:2356

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\9f6f0bfabcf0ff3b9e46e7cc7f584d5b2f79a9357afe7e7a3dbe89ccb588db38.exe

    Filesize

    2.5MB

    MD5

    39b4fc52afc3a1f71db0e63751c7d2a2

    SHA1

    b19069161e70a09ee98fc30080d5d6b17dc0abad

    SHA256

    55a89342d18c6e3c2e78f7c21bc11aef2be31432156d96adaf55c776ddc75517

    SHA512

    0f5d694ee6be003fe5843b1e5c625d281374a9cc87b6e04b01ff8ddbc85c3f2f937f1303fb3549e2e382d816575c708c215a62f19a792ff590c1e7213ab11f3b

  • memory/2356-9-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2356-10-0x0000000000400000-0x000000000067C000-memory.dmp

    Filesize

    2.5MB

  • memory/2400-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2400-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB