Overview

overview

10

Static

static

Sheet.......pdf.exe

windows7_x64

10

Sheet.......pdf.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    97s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:58

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General

  • Target

    Sheet.......pdf.exe

  • Size

    437KB

  • MD5

    ac621011571eca9bfcc83b3457e8bc4e

  • SHA1

    9979d2ac17eaaeb8c65457212cd0b8f25db24dc4

  • SHA256

    c4ccd023eed63b7c47c69e1b08e267f4579cc54e9998f3767d7c1438127b6d1a

  • SHA512

    86715884fc9ce924919b37ec820ebf57f8acf7ede3eadd4aa1af71da9d606bf8e3f41f33b2e958bd11826377a7ccdd94f1328235fb457a41041592e30500b783

Score
10/10
agentteslacollectionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    nnedimma080

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 6 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

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

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

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

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

    spywarestealer
  • 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
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sheet.......pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Sheet.......pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1564
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hrZoEWJfRidjT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8344.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1900
    • C:\Users\Admin\AppData\Local\Temp\Sheet.......pdf.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2000

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

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8344.tmp
    Filesize

    1KB

    MD5

    bc47803d8fb9cbeb882e7f44a745c55a

    SHA1

    955ce161df7a5d35b49a7db4100ce028466bd21c

    SHA256

    cad20b71ab87c21191f01297fa200a8f8385afe7871da0f604f05979e54a0cc6

    SHA512

    607b4952650ee98b3048bf35f131d5a33e8fb01185cc55e6aab8548c5d408c1ba7c6f657df9ffbdbef90dcf59490081ed5d088ece9e1debdbc31d6d37deb2fde

    Download Submit
  • memory/1564-54-0x00000000763B1000-0x00000000763B3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1564-55-0x0000000074FF0000-0x000000007559B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1900-56-0x0000000000000000-mapping.dmp
    Download
  • memory/2000-61-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/2000-59-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/2000-58-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/2000-62-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/2000-63-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/2000-64-0x0000000000447DEE-mapping.dmp
    Download
  • memory/2000-66-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/2000-68-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/2000-70-0x0000000074F80000-0x000000007552B000-memory.dmp
    Filesize

    5.7MB

    Download