Analysis

  • max time kernel
    22s
  • max time network
    5s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2025 13:59

General

  • Target

    GrayWolf.exe

  • Size

    5.4MB

  • MD5

    fc880e4806da9ef322b4918ad89880bd

  • SHA1

    a359064fce75722488038c4316deb7354cef87b5

  • SHA256

    608e5234a2745f72909b5e002176149df66e39c36217fcc4826f13dba9e0153e

  • SHA512

    ea43f38145b4493a0a2ed5a7fa6997dd86573530a479e7593928629f74106430e2e45ee15e156f6f3c648d164d909db0591fb0407034037e79d3175b146471da

  • SSDEEP

    49152:DF/5OwXqsw+mw6j4w6SAZplWz3SUcSUWrXxRyJQfSqF6kr3Az0L:D/B0rQgCUcSUWOv98JL

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
  • 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
  • Obfuscated with Agile.Net obfuscator 3 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • 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 19 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GrayWolf.exe
    "C:\Users\Admin\AppData\Local\Temp\GrayWolf.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:2608
    • C:\Users\Admin\AppData\Local\Temp\3582-490\GrayWolf.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\GrayWolf.exe"
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\GrayWolf.exe

    Filesize

    5.4MB

    MD5

    02a88d03242515576fa54218538e34fa

    SHA1

    ed6f90fcbf9fabf0da167987e1c2647833df5d6e

    SHA256

    533afe3493caae3a36d03f7766aeeec4de9f682a76d73b8098f975daacf48c0b

    SHA512

    b9b0a03500e5ef66569dc42b07c5da6c186660989403bafd9f8511303add0622f8a9f670f73dffa3ddd8fe044b82c4e26a4ad6ae6e1aa0898c72b3ef671e09d5

  • memory/2608-133-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2608-132-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4844-27-0x0000000002A70000-0x0000000002A7A000-memory.dmp

    Filesize

    40KB

  • memory/4844-13-0x00000000003F0000-0x0000000000956000-memory.dmp

    Filesize

    5.4MB

  • memory/4844-15-0x0000000001200000-0x0000000001208000-memory.dmp

    Filesize

    32KB

  • memory/4844-25-0x000000001B710000-0x000000001B728000-memory.dmp

    Filesize

    96KB

  • memory/4844-30-0x000000001B790000-0x000000001B79C000-memory.dmp

    Filesize

    48KB

  • memory/4844-33-0x000000001B820000-0x000000001B86A000-memory.dmp

    Filesize

    296KB

  • memory/4844-38-0x000000001B980000-0x000000001B98C000-memory.dmp

    Filesize

    48KB

  • memory/4844-37-0x000000001B970000-0x000000001B978000-memory.dmp

    Filesize

    32KB

  • memory/4844-36-0x000000001B960000-0x000000001B968000-memory.dmp

    Filesize

    32KB

  • memory/4844-35-0x000000001B910000-0x000000001B95C000-memory.dmp

    Filesize

    304KB

  • memory/4844-34-0x000000001B870000-0x000000001B908000-memory.dmp

    Filesize

    608KB

  • memory/4844-32-0x000000001B810000-0x000000001B818000-memory.dmp

    Filesize

    32KB

  • memory/4844-31-0x000000001B7A0000-0x000000001B808000-memory.dmp

    Filesize

    416KB

  • memory/4844-29-0x000000001B780000-0x000000001B78C000-memory.dmp

    Filesize

    48KB

  • memory/4844-39-0x00007FFBF2B70000-0x00007FFBF3631000-memory.dmp

    Filesize

    10.8MB

  • memory/4844-28-0x000000001B770000-0x000000001B778000-memory.dmp

    Filesize

    32KB

  • memory/4844-16-0x0000000001210000-0x0000000001226000-memory.dmp

    Filesize

    88KB

  • memory/4844-26-0x000000001B730000-0x000000001B764000-memory.dmp

    Filesize

    208KB

  • memory/4844-22-0x0000000002A10000-0x0000000002A18000-memory.dmp

    Filesize

    32KB

  • memory/4844-17-0x000000001B470000-0x000000001B656000-memory.dmp

    Filesize

    1.9MB

  • memory/4844-21-0x0000000002A00000-0x0000000002A0C000-memory.dmp

    Filesize

    48KB

  • memory/4844-23-0x0000000002A20000-0x0000000002A3A000-memory.dmp

    Filesize

    104KB

  • memory/4844-20-0x0000000001240000-0x0000000001250000-memory.dmp

    Filesize

    64KB

  • memory/4844-19-0x0000000001230000-0x0000000001240000-memory.dmp

    Filesize

    64KB

  • memory/4844-18-0x000000001B660000-0x000000001B712000-memory.dmp

    Filesize

    712KB

  • memory/4844-40-0x000000001E3D0000-0x000000001E3EC000-memory.dmp

    Filesize

    112KB

  • memory/4844-42-0x00007FFBF2B70000-0x00007FFBF3631000-memory.dmp

    Filesize

    10.8MB

  • memory/4844-14-0x00000000011F0000-0x00000000011F8000-memory.dmp

    Filesize

    32KB

  • memory/4844-56-0x00007FFBF2B70000-0x00007FFBF3631000-memory.dmp

    Filesize

    10.8MB

  • memory/4844-57-0x00007FFBF2B70000-0x00007FFBF3631000-memory.dmp

    Filesize

    10.8MB

  • memory/4844-58-0x00007FFBF2B70000-0x00007FFBF3631000-memory.dmp

    Filesize

    10.8MB

  • memory/4844-114-0x00007FFBF2B70000-0x00007FFBF3631000-memory.dmp

    Filesize

    10.8MB

  • memory/4844-129-0x0000000023430000-0x0000000023446000-memory.dmp

    Filesize

    88KB

  • memory/4844-130-0x00007FFBF2B73000-0x00007FFBF2B75000-memory.dmp

    Filesize

    8KB

  • memory/4844-131-0x00007FFBF2B70000-0x00007FFBF3631000-memory.dmp

    Filesize

    10.8MB

  • memory/4844-24-0x0000000002A40000-0x0000000002A6E000-memory.dmp

    Filesize

    184KB

  • memory/4844-12-0x00007FFBF2B73000-0x00007FFBF2B75000-memory.dmp

    Filesize

    8KB