Overview

overview

10

Static

static

Confirmati...DF.exe

windows7_x64

10

Confirmati...DF.exe

windows10_x64

10

Analysis

  • max time kernel
    119s
  • max time network
    169s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    29-10-2021 09:36

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General

  • Target

    Confirmation Transfer Copy MT103-Ref-088091030101_PDF.exe

  • Size

    251KB

  • MD5

    8adb35800f43e4f023e9e50b5a5e7eb0

  • SHA1

    81abe91633dab20e61e69902428a0909e9a25f09

  • SHA256

    5639c11ec67442443212c1b9771cf3462670e03f1116d0caca38dae306491de4

  • SHA512

    359b2913be167eec27ca5a27f0bf41256d32a7c250aa902e3daf4909e1cbea03a530c35c58ceed50c50e450c3f626e11aa4cd01657e76ac1486cfc483a1c8e98

Score
10/10
asyncratdefaultratsuricata

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

fresh01.ddns.net:2245

fresh01.ddns.net:2256

fresh01.ddns.net:2257
Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • anti_vm

    false

  • bsod

    false

  • delay

    3

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    null

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

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

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

    suricata
  • Async RAT payload 5 IoCs
    rat
  • Suspicious use of SetThreadContext 1 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmation Transfer Copy MT103-Ref-088091030101_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmation Transfer Copy MT103-Ref-088091030101_PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AhRhGvu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA0A3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:552
    • C:\Users\Admin\AppData\Local\Temp\Confirmation Transfer Copy MT103-Ref-088091030101_PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\Confirmation Transfer Copy MT103-Ref-088091030101_PDF.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:596

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

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/552-59-0x0000000000000000-mapping.dmp
    Download
  • memory/596-64-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

    Download
  • memory/596-60-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

    Download
  • memory/596-61-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

    Download
  • memory/596-62-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

    Download
  • memory/596-63-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

    Download
  • memory/596-65-0x000000000040C74E-mapping.dmp
    Download
  • memory/596-66-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

    Download
  • memory/596-68-0x0000000074B91000-0x0000000074B93000-memory.dmp
    Filesize

    8KB

    Download
  • memory/596-69-0x0000000002100000-0x0000000002101000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1556-57-0x00000000007B0000-0x00000000007B6000-memory.dmp
    Filesize

    24KB

    Download
  • memory/1556-58-0x0000000002190000-0x00000000021BD000-memory.dmp
    Filesize

    180KB

    Download
  • memory/1556-56-0x0000000004580000-0x0000000004581000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1556-54-0x0000000000880000-0x0000000000881000-memory.dmp
    Filesize

    4KB

    Download