Analysis

  • max time kernel
    143s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 14:35

General

  • Target

    xtPT79JKvvlE.exe

  • Size

    47KB

  • MD5

    6657934f52a0686aefcfac430c49eb6c

  • SHA1

    e803dc674a183866df2ea7c732bd6ce288e4d273

  • SHA256

    a89667a64a05760547dd5b7f8a87181fb145a48ed2492392918e653c7e5bb9a6

  • SHA512

    5d0991ccd328d04ee99136c08ecf6ce17d1d557e0b44a7df55a553002c61aaef3a018fdbc90e2a0ca21bd13ef26865e6a8a95d541feb1a827c101a7378703cf5

  • SSDEEP

    768:oq+s3pUtDILNCCa+DimriAPYb+geRHuPkqgmvEgK/JfZVc6KN:oq+AGtQOgQbBJtnkJfZVclN

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

PROMESAS NEW 05

C2

promesasalvaro1.duckdns.org:7091

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe
    "C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8013.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4352
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:512
  • 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=1408 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3984

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp8013.tmp.bat

      Filesize

      164B

      MD5

      8efe9af2bb80e32d091e046112f68d8f

      SHA1

      3d455d6bdc876592bc3f484d1fb0e6d78b8e2354

      SHA256

      75807a0828423669ccec588c1c16d5df453f0ad2d2fe211c483cf7ba6ca2b606

      SHA512

      d9356eed5b5eeaa908fad4d362895a2e4185732f9c53e3341acd3cdf7809183fd84ec30d87e2a71742e65c065451f076b60fb1b68eba7d38357592dbd1aa0d3b

    • memory/1928-0-0x0000000000AF0000-0x0000000000B02000-memory.dmp

      Filesize

      72KB

    • memory/1928-1-0x00007FF82DA60000-0x00007FF82E521000-memory.dmp

      Filesize

      10.8MB

    • memory/1928-2-0x000000001B7A0000-0x000000001B7B0000-memory.dmp

      Filesize

      64KB

    • memory/1928-5-0x00007FF83B470000-0x00007FF83B489000-memory.dmp

      Filesize

      100KB

    • memory/1928-6-0x00007FF82DA60000-0x00007FF82E521000-memory.dmp

      Filesize

      10.8MB

    • memory/1928-7-0x000000001B7A0000-0x000000001B7B0000-memory.dmp

      Filesize

      64KB

    • memory/1928-8-0x000000001D0F0000-0x000000001D166000-memory.dmp

      Filesize

      472KB

    • memory/1928-9-0x000000001D070000-0x000000001D0D4000-memory.dmp

      Filesize

      400KB

    • memory/1928-10-0x000000001D0D0000-0x000000001D0EE000-memory.dmp

      Filesize

      120KB

    • memory/1928-15-0x00007FF82DA60000-0x00007FF82E521000-memory.dmp

      Filesize

      10.8MB

    • memory/1928-16-0x00007FF83B470000-0x00007FF83B489000-memory.dmp

      Filesize

      100KB