Resubmissions

07/01/2025, 08:47

250107-kpvvmsvqhm 10

31/12/2024, 01:00

241231-bcvvfazjas 10

Analysis

  • max time kernel
    121s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2024, 01:00

General

  • Target

    adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe

  • Size

    412KB

  • MD5

    0731d232d0af12a5320238914de6bf4a

  • SHA1

    41b1d57292fa942352373e587a638011893649ab

  • SHA256

    adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe

  • SHA512

    a1af80997ce12df93cd17be40f78cfaced5fda36e1a601819e7e0790fa1efba13c2f818d45f83290707e3ac8e1fc54fea7f2d6a17640e83da5ba816ee629a436

  • SSDEEP

    6144:y+YH9d/Ucs7XgCbXTFm2HTMFyowl07iLC0Ga2wdyRwIfjc6YRjd66Al:y5HUcaX5Lxm2atlf0Ga2NRwI7YJbAl

Malware Config

Extracted

Family

asyncrat

Version

AWS | RxR

Botnet

EXE JDIDD

C2

5sdf23d2sdf.ddnss.eu:6606

5sdf23d2sdf.ddnss.eu:7707

5sdf23d2sdf.ddnss.eu:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • UAC bypass 3 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 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.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe
    "C:\Users\Admin\AppData\Local\Temp\adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1060
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2220
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
      2⤵
        PID:2108
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2704
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
        2⤵
          PID:2820

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\CabCB5C.tmp

              Filesize

              70KB

              MD5

              49aebf8cbd62d92ac215b2923fb1b9f5

              SHA1

              1723be06719828dda65ad804298d0431f6aff976

              SHA256

              b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

              SHA512

              bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

            • C:\Users\Admin\AppData\Local\Temp\TarE140.tmp

              Filesize

              181KB

              MD5

              4ea6026cf93ec6338144661bf1202cd1

              SHA1

              a1dec9044f750ad887935a01430bf49322fbdcb7

              SHA256

              8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

              SHA512

              6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

            • memory/1060-27-0x000007FEF5F10000-0x000007FEF68FC000-memory.dmp

              Filesize

              9.9MB

            • memory/1060-1-0x0000000001260000-0x00000000012CA000-memory.dmp

              Filesize

              424KB

            • memory/1060-2-0x000000001A6D0000-0x000000001A738000-memory.dmp

              Filesize

              416KB

            • memory/1060-3-0x000007FEF5F10000-0x000007FEF68FC000-memory.dmp

              Filesize

              9.9MB

            • memory/1060-0-0x000007FEF5F13000-0x000007FEF5F14000-memory.dmp

              Filesize

              4KB

            • memory/2108-7-0x0000000000400000-0x0000000000416000-memory.dmp

              Filesize

              88KB

            • memory/2108-6-0x0000000000400000-0x0000000000416000-memory.dmp

              Filesize

              88KB

            • memory/2108-5-0x0000000000400000-0x0000000000416000-memory.dmp

              Filesize

              88KB

            • memory/2108-4-0x0000000000400000-0x0000000000416000-memory.dmp

              Filesize

              88KB

            • memory/2220-12-0x0000000002D30000-0x0000000002DB0000-memory.dmp

              Filesize

              512KB

            • memory/2220-26-0x0000000002390000-0x0000000002398000-memory.dmp

              Filesize

              32KB

            • memory/2220-13-0x000000001B680000-0x000000001B962000-memory.dmp

              Filesize

              2.9MB

            • memory/2704-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2704-25-0x0000000000400000-0x0000000000416000-memory.dmp

              Filesize

              88KB

            • memory/2704-23-0x0000000000400000-0x0000000000416000-memory.dmp

              Filesize

              88KB

            • memory/2704-24-0x0000000000400000-0x0000000000416000-memory.dmp

              Filesize

              88KB