Overview

overview

10

Static

static

10

75876b62b3...0N.exe

windows7-x64

10

75876b62b3...0N.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-07-2024 08:14

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General

  • Target

    75876b62b3fdb128d9b3dfae6e9cebf0N.exe

  • Size

    261KB

  • MD5

    75876b62b3fdb128d9b3dfae6e9cebf0

  • SHA1

    27e2a11fc6678b8367c19bcb1b50c52c06ae740a

  • SHA256

    b87a03ff94628c6e231cc9681e5b895be4cc8e70dc8e2194367623824aea51eb

  • SHA512

    c7f3fe892e25095be5178d9308df95735dbebe8aa0d0571ff4f1ad8bbc5b4c25215f1ddb2d4042367b77191b7a8384e9ebd93b25dba22f30218383f2077eb9c1

  • SSDEEP

    3072:ThJBLTM3UfcVdoQDQlpebbSt/gZHP9Y05sK+5V4bvoUwXj3z:ThDLTM3UfquiWp8bS/Q95sK+5V4L2D

Score
10/10
asyncratnagirat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Nagi

C2

91.188.254.203:4449

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes
  • delay

    1

  • install

    true

  • install_file

    windowslauncher.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).

  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\75876b62b3fdb128d9b3dfae6e9cebf0N.exe
    "C:\Users\Admin\AppData\Local\Temp\75876b62b3fdb128d9b3dfae6e9cebf0N.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windowslauncher" /tr '"C:\Users\Admin\AppData\Roaming\windowslauncher.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "windowslauncher" /tr '"C:\Users\Admin\AppData\Roaming\windowslauncher.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1232
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp79E3.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3492
      • C:\Users\Admin\AppData\Roaming\windowslauncher.exe
        "C:\Users\Admin\AppData\Roaming\windowslauncher.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2136

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp79E3.tmp.bat
    Filesize

    159B

    MD5

    ebc6b2cada51453d11019a89ec836ab6

    SHA1

    00db050970255abb4502e3ddadd14db761d5605f

    SHA256

    c21401a562f76f193dfc598d868f8a7afad4a4b879fc3a0f3b46eb56aac19e27

    SHA512

    cb694bba64fcf710b44eef8f5de0de0afd5744fa336ad4a286ca34e716a5ec07dcd8cc9cbeb17f4c2a0d6ecb2355bbbf1c5decd19131f86181b15af866d4eb6f

    Download Submit

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

    261KB

    MD5

    75876b62b3fdb128d9b3dfae6e9cebf0

    SHA1

    27e2a11fc6678b8367c19bcb1b50c52c06ae740a

    SHA256

    b87a03ff94628c6e231cc9681e5b895be4cc8e70dc8e2194367623824aea51eb

    SHA512

    c7f3fe892e25095be5178d9308df95735dbebe8aa0d0571ff4f1ad8bbc5b4c25215f1ddb2d4042367b77191b7a8384e9ebd93b25dba22f30218383f2077eb9c1

    Download Submit

  • memory/4652-1-0x0000000000610000-0x0000000000658000-memory.dmp

    Filesize

    288KB

    Download

  • memory/4652-0-0x00007FFD8DD63000-0x00007FFD8DD65000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4652-2-0x00007FFD8DD60000-0x00007FFD8E821000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4652-7-0x00007FFD8DD60000-0x00007FFD8E821000-memory.dmp

    Filesize

    10.8MB

    Download