Analysis

  • max time kernel
    175s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-01-2025 10:25

General

  • Target

    Sonoyuncu client tr v1.0.0.exe

  • Size

    253KB

  • MD5

    006cf9ecda1c06de525937b3177217cb

  • SHA1

    b997841645e4194e79ba65a138052c6d31ef901b

  • SHA256

    c93e91208da32c2d53feb734663f4260494d016f9e505551449105e91e85bb09

  • SHA512

    33dfffcb3d706b810883d757e79430ce8998acb4bf9c0a7d78486517a5375527a3fa83d8605ff228f7ca38349114330301e89b99e68d73a9558ecace34fe6575

  • SSDEEP

    3072:Lu/aTUP/2ufHNbx2lUkNcy/pq3canAwKcVkMfHlgCkh:Lu/hOYtbEUkP/pq3c+AjcVlfFDG

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

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
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sonoyuncu client tr v1.0.0.exe
    "C:\Users\Admin\AppData\Local\Temp\Sonoyuncu client tr v1.0.0.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:1408
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4628
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1504
    • C:\Users\Admin\AppData\Local\Temp\Sonoyuncu client tr v1.0.0.exe
      "C:\Users\Admin\AppData\Local\Temp\Sonoyuncu client tr v1.0.0.exe"
      1⤵
      • System Location Discovery: System Language Discovery
      PID:2240
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k SDRSVC
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3232
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\wmsetup.log
      1⤵
      • Opens file in notepad (likely ransom note)
      PID:2280

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1408-0-0x00000000747EE000-0x00000000747EF000-memory.dmp

      Filesize

      4KB

    • memory/1408-1-0x00000000001C0000-0x0000000000204000-memory.dmp

      Filesize

      272KB

    • memory/1408-2-0x00000000747E0000-0x0000000074F90000-memory.dmp

      Filesize

      7.7MB

    • memory/1408-3-0x00000000747EE000-0x00000000747EF000-memory.dmp

      Filesize

      4KB

    • memory/1408-17-0x00000000747E0000-0x0000000074F90000-memory.dmp

      Filesize

      7.7MB

    • memory/4628-5-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB

    • memory/4628-6-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB

    • memory/4628-10-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB

    • memory/4628-11-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB

    • memory/4628-12-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB

    • memory/4628-14-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB

    • memory/4628-13-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB

    • memory/4628-15-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB

    • memory/4628-16-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB

    • memory/4628-4-0x000002BBE2DF0000-0x000002BBE2DF1000-memory.dmp

      Filesize

      4KB