Analysis

  • max time kernel
    117s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    11-05-2021 12:55

General

  • Target

    PAYMENT COPY.exe

  • Size

    911KB

  • MD5

    497fdb0a1fa8970ac4e81aa66278b6ed

  • SHA1

    5bacbe7521f6d6de1a7efc85d92fddf7fd358b21

  • SHA256

    c70bf2aeaa6b9f644dadc0617debe3ec20671adc1e2ee8c60a8a932bf99e3c63

  • SHA512

    b52fccf2ff91ae3a4ed7d87ba14ba715a8780e7004e632995949757fc3f414312f12c1c141d5033c3764cfcbd6955644514ff1961813fe5551cace35cdfa66f1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.dadabhoy.edu.pk
  • Port:
    587
  • Username:
    ghulam.sarwar@dadabhoy.edu.pk
  • Password:
    Dadabhoy.456

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 2 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PAYMENT COPY.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT COPY.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XJjZTrL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFC1A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:368
    • C:\Users\Admin\AppData\Local\Temp\PAYMENT COPY.exe
      "C:\Users\Admin\AppData\Local\Temp\PAYMENT COPY.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1096
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 520
        3⤵
          PID:1836

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpFC1A.tmp
      MD5

      f8280530a1b6d8516ec524042aff6f97

      SHA1

      00a241efa4d7b08c23a284787d85926fed2c22cc

      SHA256

      880b1cf890eeba78b5b298194fb2634f6fc616a70a74c11b4e1c88c537b84b19

      SHA512

      5144c9e05384e1b62ff1f2bb8811ddb9931c125390466cfd6a219af18b54fd8571f7f2bb6fbfcd81f0aeda86369e55f5599d8aa05b12f9fed573007955a4699d

    • memory/368-63-0x0000000000000000-mapping.dmp
    • memory/1096-65-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1096-66-0x000000000043754E-mapping.dmp
    • memory/1096-68-0x0000000000BC0000-0x0000000000BC1000-memory.dmp
      Filesize

      4KB

    • memory/1836-69-0x0000000000000000-mapping.dmp
    • memory/1836-71-0x0000000000330000-0x0000000000331000-memory.dmp
      Filesize

      4KB

    • memory/1988-60-0x0000000075B31000-0x0000000075B33000-memory.dmp
      Filesize

      8KB

    • memory/1988-61-0x00000000004C0000-0x00000000004C1000-memory.dmp
      Filesize

      4KB

    • memory/1988-62-0x00000000004C1000-0x00000000004C2000-memory.dmp
      Filesize

      4KB