Analysis

  • max time kernel
    15s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 23:28

General

  • Target

    c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe

  • Size

    146KB

  • MD5

    a133cdb215ad2267197f69a114bd4110

  • SHA1

    ce4a01f19f51003ca1a799e2e3fc02d692102fbc

  • SHA256

    c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1

  • SHA512

    dd34af3e3e8eb204b166c2fcb152e43ad97afcd626c50131238b0c57e2c2fd5032d2e9102437b8291e36d81ccd242e4f601082bd63224b4cda35351e134ab160

  • SSDEEP

    3072:sr85CkkbAYn2GgYlBYN2fHYTo+agt8wDSRUTT:k9xbAMpgY3gTz8DRUTT

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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe
    "C:\Users\Admin\AppData\Local\Temp\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.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:2428
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe"
      2⤵
      • Executes dropped EXE
      PID:2152

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\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe

    Filesize

    105KB

    MD5

    79423cf30f8a272afd0caae1d7f89f68

    SHA1

    3d37cc39aac3b8b68610c13606f3b16b568485df

    SHA256

    4326d36cf622e99b7c081157529d440d4aaf17b56e5ac426ba5c3d9b616d8974

    SHA512

    2c7b1ba29ce40c2d025109d272a3218fa062e6fcf51e7fc248a9d11bb61d21e1a1595a9bc9b61b52d22e5bf5223e8a7581a5166a0787dc8b9cda42265745b28d

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/2428-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2428-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB