Overview

overview

10

Static

static

AUG. PURCH...ER.exe

windows7_x64

10

AUG. PURCH...ER.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:44

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General

  • Target

    AUG. PURCHASE ORDER.exe

  • Size

    813KB

  • MD5

    51cd9a94ff9c50f18ea55c3d4e844a41

  • SHA1

    72d72eb8f18177235bee686425ebfbb7b9fef308

  • SHA256

    7f09e1a23ce7b3b143221cd5f8be274e0b75380e6b3dd8e32d947c6f3b493104

  • SHA512

    6ea62e5c90899a0fb0eeb96dcab1566fefdd5bf4af61b48bb4c771202dfdd012a475eda85ea8ff132f9e60d5225207ff90dcfebd3015a983f5de52d559cf967f

Score
10/10
agentteslacollectionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.varda.com.tr
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    varda9997929

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AUG. PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\AUG. PURCHASE ORDER.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:768
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ATmGFbeqEs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBD64.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4420
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:3952
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Drops file in Drivers directory
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:3556
        • C:\Windows\SysWOW64\REG.exe
          REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
          3⤵
          • Modifies registry key
          PID:1460

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    2
    T1112

    Credential Access

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpBD64.tmp
      Filesize

      1KB

      MD5

      7ed9921be01b770ebbbb949f29a92df5

      SHA1

      9812940baa9348ad70cca866c439ea6fd50ffec7

      SHA256

      304c0325e26cb5d77d205060d62708a8e850acff2d9d66ec55d4379104002494

      SHA512

      c0a684c42b6bf9c76be811007b26533f667248267fa0adcba61e6e8ab30520e8b0c56dba0c43f6fde91b1da401518b8e9dcdc4bf823cb94e1b14725f42198d8b

      Download Submit
    • memory/768-133-0x0000000005110000-0x000000000511A000-memory.dmp
      Filesize

      40KB

      Download
    • memory/768-132-0x0000000005160000-0x00000000051F2000-memory.dmp
      Filesize

      584KB

      Download
    • memory/768-130-0x0000000000450000-0x0000000000520000-memory.dmp
      Filesize

      832KB

      Download
    • memory/768-134-0x000000000E290000-0x000000000E32C000-memory.dmp
      Filesize

      624KB

      Download
    • memory/768-131-0x0000000005530000-0x0000000005AD4000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/1460-142-0x0000000000000000-mapping.dmp
      Download
    • memory/3556-138-0x0000000000000000-mapping.dmp
      Download
    • memory/3556-139-0x0000000000400000-0x000000000045A000-memory.dmp
      Filesize

      360KB

      Download
    • memory/3556-140-0x00000000055F0000-0x0000000005656000-memory.dmp
      Filesize

      408KB

      Download
    • memory/3556-141-0x00000000062F0000-0x0000000006340000-memory.dmp
      Filesize

      320KB

      Download
    • memory/3952-137-0x0000000000000000-mapping.dmp
      Download
    • memory/4420-135-0x0000000000000000-mapping.dmp
      Download