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Overview

overview

10

Static

static

10

556407eba4...69.exe

windows7-x64

10

556407eba4...69.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    139s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/07/2024, 12:59

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General

  • Target

    556407eba4cd85a57fdb6dcdb12e2269.exe

  • Size

    45KB

  • MD5

    556407eba4cd85a57fdb6dcdb12e2269

  • SHA1

    d68a0f0831556c4ef3fb3e003385e897a210b751

  • SHA256

    0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715

  • SHA512

    d7baa345dac09eb418604a3d6ace4af0a54cb2b5a627967bc9ccdbb5ee5021ef6dd1e042fcc4165aeb5a38f8583af56f99e5472fa1442ee0335cf62e9664c6c0

  • SSDEEP

    768:uuokxmFTkUE1YAgWUOl1nyamo2qR+1uGJAIGYPPI3njbMgX3iWHCHiGTCE2BDZax:uuokxmFTkUMYi1t2HsNx3jbDXSWHnGm0

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

193.23.160.13:7707

Mutex

zTAsGorHPqSl

Attributes
  • delay

    3

  • install

    true

  • install_file

    Server-Host.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • 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
    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\556407eba4cd85a57fdb6dcdb12e2269.exe
    "C:\Users\Admin\AppData\Local\Temp\556407eba4cd85a57fdb6dcdb12e2269.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Server-Host" /tr '"C:\Users\Admin\AppData\Roaming\Server-Host.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3968
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Server-Host" /tr '"C:\Users\Admin\AppData\Roaming\Server-Host.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4440
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA5D5.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4720
      • C:\Users\Admin\AppData\Roaming\Server-Host.exe
        "C:\Users\Admin\AppData\Roaming\Server-Host.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4764

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA5D5.tmp.bat
    Filesize

    155B

    MD5

    488d2a2fbaf2ab52a8f2dd591492d5cd

    SHA1

    95ca11eb2729f6dc2d1dc21d715eb7e961b2a5b5

    SHA256

    d34a714488bbc1740d8bf2e61ccf9d912f7780c235e5fec41440512e5835b817

    SHA512

    bb0e7441d3cc558c31999192556c4f7fb4a1ae5c7d89bf8c54e6e030c02d2499daec30eb90313cc1b69c5fca154aa9f0be1793e15f8d880748023d8db3b19483

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Server-Host.exe
    Filesize

    45KB

    MD5

    556407eba4cd85a57fdb6dcdb12e2269

    SHA1

    d68a0f0831556c4ef3fb3e003385e897a210b751

    SHA256

    0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715

    SHA512

    d7baa345dac09eb418604a3d6ace4af0a54cb2b5a627967bc9ccdbb5ee5021ef6dd1e042fcc4165aeb5a38f8583af56f99e5472fa1442ee0335cf62e9664c6c0

    Download Submit

  • memory/1708-0-0x000000007540E000-0x000000007540F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1708-1-0x0000000000BB0000-0x0000000000BC2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/1708-2-0x0000000075400000-0x0000000075BB0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/1708-3-0x0000000005570000-0x00000000055D6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/1708-4-0x00000000059E0000-0x0000000005A7C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/1708-10-0x0000000075400000-0x0000000075BB0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4764-14-0x0000000075400000-0x0000000075BB0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4764-17-0x00000000064E0000-0x0000000006A84000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/4764-18-0x0000000075400000-0x0000000075BB0000-memory.dmp

    Filesize

    7.7MB

    Download