Overview

overview

10

Static

static

10

828ba73d57...ba.exe

windows7-x64

10

828ba73d57...ba.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-08-2024 14:44

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General

  • Target

    828ba73d572808c7a5b1446c74aac88f12783993c77ced5f448a4d013d5af5ba.exe

  • Size

    47KB

  • MD5

    1d7a26fbb453cc6d2e7d043b78e35a20

  • SHA1

    09f126416801d34bbb810f31177d85af47d7e6e3

  • SHA256

    828ba73d572808c7a5b1446c74aac88f12783993c77ced5f448a4d013d5af5ba

  • SHA512

    a5c7406b72a12c0e1fba41ab7860298c32c46316c614b7f6362006fa592ca014753211fee1075436080cb1ed08eaef43aefbb6e3d982827e4eed00f8954987ea

  • SSDEEP

    768:Juk0VT3ongoWU2Gjimo2qrZwC9VsFtePIpk6Z/0bCwAL48IESVGmitVzcWIVgCt1:Juk0VT3Q+2GVsFtpkOcbCwAIVjitVzcp

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:7707

127.0.0.1:8808
Mutex

O0LOqrCJA4pL

Attributes
  • delay

    3

  • install

    true

  • install_file

    hey.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\828ba73d572808c7a5b1446c74aac88f12783993c77ced5f448a4d013d5af5ba.exe
    "C:\Users\Admin\AppData\Local\Temp\828ba73d572808c7a5b1446c74aac88f12783993c77ced5f448a4d013d5af5ba.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1444
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hey" /tr '"C:\Users\Admin\AppData\Roaming\hey.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:736
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "hey" /tr '"C:\Users\Admin\AppData\Roaming\hey.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2904
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9FBA.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:620
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2024
      • C:\Users\Admin\AppData\Roaming\hey.exe
        "C:\Users\Admin\AppData\Roaming\hey.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9FBA.tmp.bat
    Filesize

    147B

    MD5

    703f6875d62ed5de3dbada04aa193c9a

    SHA1

    8005e884e296cc8d0dfc5b0e6405fb24bd04a6c6

    SHA256

    86b6ed8adce127db66e2b5a952a96cf0625bed38faee8e41acdcb9a1b31d9720

    SHA512

    b680b78d815eabd46fe25a725eb479ec4e61ff9d5eac71d62eb3aea9c4abc983fbf5976f8326e1b330b431c23c498e7175d91c66bbef0394de5debeb1cb583bf

    Download Submit

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

    47KB

    MD5

    1d7a26fbb453cc6d2e7d043b78e35a20

    SHA1

    09f126416801d34bbb810f31177d85af47d7e6e3

    SHA256

    828ba73d572808c7a5b1446c74aac88f12783993c77ced5f448a4d013d5af5ba

    SHA512

    a5c7406b72a12c0e1fba41ab7860298c32c46316c614b7f6362006fa592ca014753211fee1075436080cb1ed08eaef43aefbb6e3d982827e4eed00f8954987ea

    Download Submit

  • memory/1444-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1444-1-0x0000000000350000-0x0000000000362000-memory.dmp

    Filesize

    72KB

    Download

  • memory/1444-2-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/1444-3-0x0000000004D80000-0x0000000004E1C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/1444-8-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/3760-13-0x0000000074CC0000-0x0000000075470000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/3760-14-0x0000000074CC0000-0x0000000075470000-memory.dmp

    Filesize

    7.7MB

    Download