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Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/09/2024, 02:59

General

  • Target

    558275f2578e6ae6bdad91329b8e0990N.exe

  • Size

    146KB

  • MD5

    558275f2578e6ae6bdad91329b8e0990

  • SHA1

    a0ca2410f43daeb5c042b381b51529da9a2403ce

  • SHA256

    ee6bab81dd604bb6cd020049568f21d24f6afaa5719be6b6f37bfcde1e2ccbaf

  • SHA512

    e1822760663f22810420bba79467be341c85f77deb80dafdaa05773460697cf7e49f4fcaefafbdd763031b247028baa5b118446c2bdeeb962f7a0f59b20d972e

  • SSDEEP

    3072:sr85CkkbAYn2GgYlBYN2fHYTo+Jt8wDSRUTPV:k9xbAMpgY3gTb8DRUT9

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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).

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\558275f2578e6ae6bdad91329b8e0990N.exe
    "C:\Users\Admin\AppData\Local\Temp\558275f2578e6ae6bdad91329b8e0990N.exe"
    1⤵
    • Checks computer location settings
    • 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
    PID:1636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\558275f2578e6ae6bdad91329b8e0990N.exe

    Filesize

    105KB

    MD5

    f3a5ccf310b731bc1ed623215e32b4f5

    SHA1

    f5c3c87375249912d2918d07d9672d18a7eaccfc

    SHA256

    d985f4b096bcdac4f173cd18fa670f2a49134bba67cc5ff8a34c245bb58a12b9

    SHA512

    b139e7fd17fe4ac3db42ec72a20c507fc73922b91ae10df5868101d66ad91a27ab09f26b88c33c1dba4a103b0b6b858297b7bb0e87903f8ec6451e68c0976f6c

  • memory/1636-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1636-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1636-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB