Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 20:23

General

  • Target

    3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b.exe

  • Size

    426KB

  • MD5

    cc63513851af6e7df3f9d4a5fe910f6f

  • SHA1

    c292fd85434bb865853138e4051ec0a994e5e585

  • SHA256

    3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b

  • SHA512

    60a8b64e999eeaaf5e06f0e6b427797fc78fbca19ea5875cc1e7834dc91a80690aeffe233252509fd263287031b4ebaa3ae6a87bf683ef12d401a359b9842426

  • SSDEEP

    12288:gEQoS8zfKEZzfq83hCr71uDyq+a0mJHs1ud:gmfhZ2318+any1k

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 19 IoCs
  • UPX dump on OEP (original entry point) 21 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 21 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b.exe
    "C:\Users\Admin\AppData\Local\Temp\3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:116
    • C:\Users\Admin\AppData\Local\Temp\3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b.exe
      "C:\Users\Admin\AppData\Local\Temp\3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3008
      • C:\Users\Admin\AppData\Local\Temp\3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b.exe
        "C:\Users\Admin\AppData\Local\Temp\3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3168
    • C:\Users\Admin\AppData\Local\Temp\3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b.exe
      "C:\Users\Admin\AppData\Local\Temp\3f9d4d1e7bb684a6d391abe02152e320047bf3e7e586a8e0484daa24e230f80b.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1208
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4140 --field-trial-handle=2228,i,8155065313278028490,17854605419281052753,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4960

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\tyrkish action big swallow (Tatjana).mpg.exe

      Filesize

      1.9MB

      MD5

      9984c719c31b7cf460deebd33e6bd24e

      SHA1

      0ca62c4f8acd647c1adfafec2e189cee8df9486b

      SHA256

      fb48dce5550b4a6d417e2e8945b030345a6d8e622cdad7798ae06fdc3fad81f0

      SHA512

      d06c35c0a7fb7bb149cf603b90a25f0ecdd62a1f5ff312177f191c7513db29eb2e3ee81c760580fb930eb8c30e94b674fbb2780fca8faf9e130d52c93c3caadd

    • C:\debug.txt

      Filesize

      146B

      MD5

      5330a6b0e3b6957cb6c6882d6a9dd584

      SHA1

      d48cbc615aad1d1bb7b99ac61707af6c7a93a3ad

      SHA256

      1e641a00e5ce771139b0078c16b4e4d98eea15e66dccb75a6099fc40cdf4cb6e

      SHA512

      854dab6fd5b7eeed628535b8b94957a0fb539ceb0b97a51b7a4daa2e4510900cb252c020c632772ce723deeee939bef1d6446e5dd609b39145c090e97f5c3aa4

    • memory/116-221-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-0-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-146-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-246-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-242-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-238-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-187-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-188-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-192-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-196-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-201-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-207-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-234-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-230-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/116-226-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/1208-32-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/1208-185-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/3008-11-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/3008-174-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/3168-186-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB