Overview

overview

10

Static

static

IMG-43555_...DF.exe

windows7_x64

10

IMG-43555_...DF.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    90s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 02:19

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General

  • Target

    IMG-43555_UTR 34444_PDF.exe

  • Size

    940KB

  • MD5

    80a3e56f0e754b838dc4a2c49b44b7ac

  • SHA1

    181d352a869f14512dcfcd475109ca0c628e1ade

  • SHA256

    8846c5d088724ae06915e0e0f987ca3a65fba368095bc73f3109f6cb7841318b

  • SHA512

    17256ee48f88550f4bcabba39c9fe0a1a8ad015be8036ac427948505221af74ef390672247bc8e8ea3105a645760832ef0608a588f74a4e609369935b054f038

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.urban.co.th
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Urban@1143

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.urban.co.th
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Urban@1143

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IMG-43555_UTR 34444_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\IMG-43555_UTR 34444_PDF.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xlKLvoqG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8712.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4400
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
        PID:4588
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4956

    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

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Discovery

    Query Registry

    5
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    4
    T1082

    Peripheral Device Discovery

    1
    T1120

    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\tmp8712.tmp
      Filesize

      1KB

      MD5

      f4782c8716d158e5b2bd2d958ee2510f

      SHA1

      2fa1b1ee35a0b290640b3d6bdf82880c2db22feb

      SHA256

      06d1628c94497dc1e94a80aecbd095b18f0175f0561a471ffc87162dce51994a

      SHA512

      8824485b59c418dc1f4b0ba4fbc5011ac20eeb3df10d74e7b2ed58023b48f97810cd51439aa1cf965aaf0e4b1456d22962907e38cb3c5c9427c8791a2927848a

      Download Submit
    • memory/2224-130-0x0000000075430000-0x00000000759E1000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/4400-131-0x0000000000000000-mapping.dmp
      Download
    • memory/4588-133-0x0000000000000000-mapping.dmp
      Download
    • memory/4956-134-0x0000000000000000-mapping.dmp
      Download
    • memory/4956-135-0x0000000000400000-0x0000000000466000-memory.dmp
      Filesize

      408KB

      Download
    • memory/4956-136-0x0000000075430000-0x00000000759E1000-memory.dmp
      Filesize

      5.7MB

      Download