Overview

overview

10

Static

static

10

016D808DD3...44.exe

windows7_x64

10

016D808DD3...44.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    16s
  • max time network
    111s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    30-06-2022 21:52

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General

  • Target

    016D808DD3D45A17F7230BFE8DF690D2B75C18BD93F44.exe

  • Size

    48KB

  • MD5

    747973b0b920bcace8ebf382a3edd701

  • SHA1

    6923e0e2e6b5813578142446fd48744bef443f67

  • SHA256

    016d808dd3d45a17f7230bfe8df690d2b75c18bd93f44f60badf12924f4266b0

  • SHA512

    814c0a9787a2012ae3c61a1c43c9cc68bd50b3bd3fed634003d6274c93f987abcea79e41e12caea61658ffab7b69f3b76934a69e9eda8d96ca325e9b83c71c27

Score
10/10
asyncratdefaultratsuricata

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

spk.accesscam.org:55555

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    google.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

    ratasyncrat
  • suricata: ET MALWARE Generic AsyncRAT Style SSL Cert

    suricata: ET MALWARE Generic AsyncRAT Style SSL Cert

    suricata
  • suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)

    suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)

    suricata
  • Async RAT payload 3 IoCs
    rat
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\016D808DD3D45A17F7230BFE8DF690D2B75C18BD93F44.exe
    "C:\Users\Admin\AppData\Local\Temp\016D808DD3D45A17F7230BFE8DF690D2B75C18BD93F44.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp75C1.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3932
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:5028
      • C:\Users\Admin\AppData\Roaming\google.exe
        "C:\Users\Admin\AppData\Roaming\google.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:3596
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "google" /tr '"C:\Users\Admin\AppData\Roaming\google.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4676
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "google" /tr '"C:\Users\Admin\AppData\Roaming\google.exe"'
    1⤵
    • Creates scheduled task(s)
    PID:3656

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp75C1.tmp.bat
    Filesize

    150B

    MD5

    2632d119f536f1ed2c87c45a13d9ac22

    SHA1

    c784d62197640fb9761f01d41e3506955201f9ed

    SHA256

    820a20c5f1ef12fcc38f0c820fa56d199ba5b38b8b4d046fd1da8e529e388a0e

    SHA512

    1cd00386ffd29b9f45ef5b3ac58710cd3a3d79ed8dd5cc5a36f5ec09d1497191c2cd3e2fd0205501f12b0a2721a9ccc973d4201528a84f2bbda59d62d109f056

    Download Submit
  • C:\Users\Admin\AppData\Roaming\google.exe
    Filesize

    48KB

    MD5

    747973b0b920bcace8ebf382a3edd701

    SHA1

    6923e0e2e6b5813578142446fd48744bef443f67

    SHA256

    016d808dd3d45a17f7230bfe8df690d2b75c18bd93f44f60badf12924f4266b0

    SHA512

    814c0a9787a2012ae3c61a1c43c9cc68bd50b3bd3fed634003d6274c93f987abcea79e41e12caea61658ffab7b69f3b76934a69e9eda8d96ca325e9b83c71c27

    Download Submit
  • C:\Users\Admin\AppData\Roaming\google.exe
    Filesize

    48KB

    MD5

    747973b0b920bcace8ebf382a3edd701

    SHA1

    6923e0e2e6b5813578142446fd48744bef443f67

    SHA256

    016d808dd3d45a17f7230bfe8df690d2b75c18bd93f44f60badf12924f4266b0

    SHA512

    814c0a9787a2012ae3c61a1c43c9cc68bd50b3bd3fed634003d6274c93f987abcea79e41e12caea61658ffab7b69f3b76934a69e9eda8d96ca325e9b83c71c27

    Download Submit
  • memory/944-130-0x0000000000180000-0x0000000000192000-memory.dmp
    Filesize

    72KB

    Download
  • memory/944-131-0x0000000004B40000-0x0000000004BDC000-memory.dmp
    Filesize

    624KB

    Download
  • memory/3596-137-0x0000000000000000-mapping.dmp
    Download
  • memory/3596-140-0x0000000005C80000-0x0000000006224000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/3596-141-0x00000000057A0000-0x0000000005806000-memory.dmp
    Filesize

    408KB

    Download
  • memory/3656-135-0x0000000000000000-mapping.dmp
    Download
  • memory/3932-133-0x0000000000000000-mapping.dmp
    Download
  • memory/4676-132-0x0000000000000000-mapping.dmp
    Download
  • memory/5028-136-0x0000000000000000-mapping.dmp
    Download