Overview

overview

10

Static

static

10

0680d99cd3...9a.exe

windows7-x64

10

0680d99cd3...9a.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-08-2024 01:01

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General

  • Target

    0680d99cd3e9932de4429d04bbbf6032e8b670700d70d758d9377e899552fc9a.exe

  • Size

    47KB

  • MD5

    4439ef5204e48d27ce6a05e726744a91

  • SHA1

    c423d37e120c92c8dcbfb44ee2b8db2572034dc6

  • SHA256

    0680d99cd3e9932de4429d04bbbf6032e8b670700d70d758d9377e899552fc9a

  • SHA512

    e4eaf577f22f84f2842b156c9a278372916267afe40d9f720095ef44c47616812fb787067dc1c4f1751100994c40f3c0a0a38aff539407401a42d03acf1ec0ad

  • SSDEEP

    768:RuokxmFTkUE1YAgWUOl1nyamo2qRA7uBCwnUnHSLyhPImmL0bX0MN379sqJA16lN:RuokxmFTkUMYi1t29PwnS+mmAbX0UL9H

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

45.90.13.137:7707

Mutex

ZD8FXEva3syi

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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0680d99cd3e9932de4429d04bbbf6032e8b670700d70d758d9377e899552fc9a.exe
    "C:\Users\Admin\AppData\Local\Temp\0680d99cd3e9932de4429d04bbbf6032e8b670700d70d758d9377e899552fc9a.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3596
    • 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:1220
      • 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:1512
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7976.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4696
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1180
      • 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:5100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7976.tmp.bat
    Filesize

    155B

    MD5

    c8906b0f7ceb9ec3cfbca71dd3f34a70

    SHA1

    62c3b93ed5a7cc5dbcb452742372de654e0f7fda

    SHA256

    f4995fb377f7b864bee88538cfed636420c4f31605d78461862d0069aa9f4052

    SHA512

    2cb1b74925b974059b30be3daa646f05b3d9b263336a0b651398ac7269a46294e0f22f824ff2324d72e90f501e6238095c2b1c1a601f0ca471523e30a3c3e225

    Download Submit

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

    47KB

    MD5

    4439ef5204e48d27ce6a05e726744a91

    SHA1

    c423d37e120c92c8dcbfb44ee2b8db2572034dc6

    SHA256

    0680d99cd3e9932de4429d04bbbf6032e8b670700d70d758d9377e899552fc9a

    SHA512

    e4eaf577f22f84f2842b156c9a278372916267afe40d9f720095ef44c47616812fb787067dc1c4f1751100994c40f3c0a0a38aff539407401a42d03acf1ec0ad

    Download Submit

  • memory/3596-0-0x00000000749CE000-0x00000000749CF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3596-1-0x0000000000890000-0x00000000008A2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/3596-2-0x00000000749C0000-0x0000000075170000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/3596-3-0x0000000005240000-0x00000000052A6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/3596-4-0x00000000056D0000-0x000000000576C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/3596-9-0x00000000749C0000-0x0000000075170000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5100-14-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5100-15-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

    Download