Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2024 05:56

General

  • Target

    Gam_install.exe

  • Size

    110KB

  • MD5

    6cff3f098fcd2379d21387a062c25a7d

  • SHA1

    3f78d254a84318dcf54657477491a8072240da65

  • SHA256

    1c8ef8a1c07f2ed88fcfb55929d468c999efad33329cb3099e802ce95f2af001

  • SHA512

    2a40c4572b0ec0fd22270613a7661a175cf5264453811cf99d5a9b816396fa44311cdd52aa4751e39e4e46fcc11d52e3b98b1ee12804e34da87d08b631dd0a0b

  • SSDEEP

    1536:JxqjQ+P04wsmJCRrZxMdbmI6sxCX28oOV6+1+LbWiTOZUlMuAEpVVQus+R+fxlZn:sr85CREdbmI6XUM+3WiTOKMuAEfw

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.

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Gam_install.exe
    "C:\Users\Admin\AppData\Local\Temp\Gam_install.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
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Users\Admin\AppData\Local\Temp\3582-490\Gam_install.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\Gam_install.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:5000

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\Gam_install.exe

    Filesize

    69KB

    MD5

    d3c07407ad02c7fbb5828be7f7af22b5

    SHA1

    534a4eac66cca8a4af21b8c3a283f3f681e67f80

    SHA256

    388fad4a00651cc01a4f0fbfd1ae1cfc2ef34af3de1a97900843ab25ebbb5da0

    SHA512

    4324a93ada5be2401fb9e7c321a6b9cabe1e2d9735ecffa72647e849a8de69c5006d46d85b87683b1263e000c6836c7c33c8d7d86c67d56ca6c9f2f797f0dfa2

  • memory/1952-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1952-103-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1952-105-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5000-12-0x00007FFC0E973000-0x00007FFC0E975000-memory.dmp

    Filesize

    8KB

  • memory/5000-13-0x000001CFCFEE0000-0x000001CFCFEF6000-memory.dmp

    Filesize

    88KB

  • memory/5000-14-0x000001CFEA5B0000-0x000001CFEA772000-memory.dmp

    Filesize

    1.8MB

  • memory/5000-15-0x00007FFC0E970000-0x00007FFC0F431000-memory.dmp

    Filesize

    10.8MB

  • memory/5000-16-0x000001CFEADB0000-0x000001CFEB2D8000-memory.dmp

    Filesize

    5.2MB

  • memory/5000-100-0x00007FFC0E973000-0x00007FFC0E975000-memory.dmp

    Filesize

    8KB

  • memory/5000-102-0x00007FFC0E970000-0x00007FFC0F431000-memory.dmp

    Filesize

    10.8MB