Overview

overview

10

Static

static

RFQ_JULY.PDF.exe

windows7_x64

10

RFQ_JULY.PDF.exe

windows10_x64

3

Analysis

  • max time kernel
    129s
  • max time network
    22s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    09-07-2020 07:32

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General

  • Target

    RFQ_JULY.PDF.exe

  • Size

    544KB

  • MD5

    4b5ba07140a8f5e93a39b915289a1e74

  • SHA1

    c49028080b8b4fb4546af71438379d4f2ef09368

  • SHA256

    68f9789527e83e614dc50e0279316745c15b43c7f72f8e7c5d4b99d8a656ff12

  • SHA512

    72878047cd8eaf504fc81705855176868b59910f925a9a0d0bb8fdf4249a4baadd55d2d48585e4edbc84d6dbc50f099e61adce2be2abc930e33384c4c0e9d8ad

Score
10/10
agentteslaevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.pka.co.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    a$yQ&h1Yd6&

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 4 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.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spyware
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spyware
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ_JULY.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ_JULY.PDF.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:376
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cBmrmyGDrZcin" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA5C0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:520
    • C:\Users\Admin\AppData\Local\Temp\RFQ_JULY.PDF.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:836

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

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

3
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA5C0.tmp
    MD5

    e17da94d8ee074f7a5e547d53f199339

    SHA1

    753145c44c477a426c83bd3a3b7c7bc0e4d8d453

    SHA256

    c9e70d3b07aa638b1f1518bee7955f7f8b5c934be408b79d56e371e9d3c19dfe

    SHA512

    070ff8e140ed84212d7567292036872d2d170cb6da52878a4359a655124b6b5cc45d7fd9d93eaa6dfb3ddd6782f11c08ceef0e4848f3e5c034fb50ae8b44293a

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  • memory/376-1-0x0000000000000000-0x0000000000000000-disk.dmp
    Download
  • memory/520-2-0x0000000000000000-mapping.dmp
    Download
  • memory/836-4-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/836-5-0x000000000044771E-mapping.dmp
    Download
  • memory/836-6-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/836-7-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download