Overview

overview

10

Static

static

10

4c5784bccf...92.exe

windows7-x64

10

4c5784bccf...92.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    38s
  • max time network
    58s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2025, 19:34

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General

  • Target

    4c5784bccf200de9ed3ebaa19feaf81e7d77d6acb152e4fa1e01dc86be97c092.exe

  • Size

    48KB

  • MD5

    0e9ffa3cb3c6d2e33322882c53bfd9fc

  • SHA1

    049810ff20e626c1b24bf670a5a03408d096111f

  • SHA256

    4c5784bccf200de9ed3ebaa19feaf81e7d77d6acb152e4fa1e01dc86be97c092

  • SHA512

    989a9cca2f09a294371eaff466859627f5e3c1d6a5962e2f6348df92df6306d6473ca31581c474b9ae35e140773fe1bba5aec0783fe0ae4f2dc8c3b8c184855b

  • SSDEEP

    768:ques1TYQZ3VWU1ymhbvmo2qjP1MlBymuXPIRe7fM6VJ0bvXmKKHaQeSE0a5YBDZL:ques1TYiFhN2pym1g7ftubvWKH0Iede6

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:1337

18.119.130.176:6606

18.119.130.176:7707

18.119.130.176:8808

18.119.130.176:1337
Mutex

3WIOtiO6KOc9

Attributes
  • delay

    3

  • install

    true

  • install_file

    RtlUpdate.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Asyncrat family
    asyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 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 6 IoCs

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

    discovery
  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4c5784bccf200de9ed3ebaa19feaf81e7d77d6acb152e4fa1e01dc86be97c092.exe
    "C:\Users\Admin\AppData\Local\Temp\4c5784bccf200de9ed3ebaa19feaf81e7d77d6acb152e4fa1e01dc86be97c092.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5216
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "RtlUpdate" /tr '"C:\Users\Admin\AppData\Roaming\RtlUpdate.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4868
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "RtlUpdate" /tr '"C:\Users\Admin\AppData\Roaming\RtlUpdate.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1196
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp55F0.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4756
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5332
      • C:\Users\Admin\AppData\Roaming\RtlUpdate.exe
        "C:\Users\Admin\AppData\Roaming\RtlUpdate.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:5580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp55F0.tmp.bat
    Filesize

    153B

    MD5

    5f93956e5b87877f1dc6aa8c580ba231

    SHA1

    f81782bc4d4761224d921154e5ce2c010843c434

    SHA256

    e7a190a19c74c4713c97a3b1073ade7196f1bc7353e23ddc3ce37d02f2605a99

    SHA512

    f64fd83f17e791bae7777f64a32592c6adedbae2ec910cb561e5a110c52738ba5b9a39ee0e0030f297e074cfe1a50fce6eaa174eb0211fb2f2d99362aaafb71a

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  • C:\Users\Admin\AppData\Roaming\RtlUpdate.exe
    Filesize

    48KB

    MD5

    0e9ffa3cb3c6d2e33322882c53bfd9fc

    SHA1

    049810ff20e626c1b24bf670a5a03408d096111f

    SHA256

    4c5784bccf200de9ed3ebaa19feaf81e7d77d6acb152e4fa1e01dc86be97c092

    SHA512

    989a9cca2f09a294371eaff466859627f5e3c1d6a5962e2f6348df92df6306d6473ca31581c474b9ae35e140773fe1bba5aec0783fe0ae4f2dc8c3b8c184855b

    Download Submit

  • memory/5216-0-0x00000000752AE000-0x00000000752AF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/5216-1-0x0000000000760000-0x0000000000772000-memory.dmp

    Filesize

    72KB

    Download

  • memory/5216-2-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5216-3-0x0000000005150000-0x00000000051B6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/5216-4-0x0000000005580000-0x000000000561C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/5216-9-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5580-14-0x00000000751F0000-0x00000000759A0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5580-15-0x00000000751F0000-0x00000000759A0000-memory.dmp

    Filesize

    7.7MB

    Download