Overview

overview

10

Static

static

S_01003884...20.exe

windows7_x64

10

S_01003884...20.exe

windows10_x64

10

Analysis

  • max time kernel
    48s
  • max time network
    13s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 19:38

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General

  • Target

    S_0100388490101_05_07_20.exe

  • Size

    485KB

  • MD5

    e705f67dbef2339a4658d9132dcd9477

  • SHA1

    a85bb77015bf5e27e52ce1ee464c65cfb69ebd46

  • SHA256

    48c9d6d694174cbbf4f1d52905fab281e1fde291d1d4fbb4db8c97b7ff232cc9

  • SHA512

    f68e1cb2757f98a6d98156d59352bc9529f54c29064db6db1b876036f287e4b68e7a0e7308d8d3cdfa555b3ce5119b305928ec97b75a212a983682588c88de6c

Score
10/10
agentteslacoreentitykeyloggerrezer0spywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.reacsa.com.mx
  • Port:
    587
  • Username:
    sucursal_puebla@reacsa.com.mx
  • Password:
    (MzImXmp2u)!

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • CoreEntity .NET Packer 1 IoCs

    A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    coreentity
  • AgentTesla Payload 4 IoCs
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

    rezer0
  • 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
  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\S_0100388490101_05_07_20.exe
    "C:\Users\Admin\AppData\Local\Temp\S_0100388490101_05_07_20.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sRpBGOaliL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp406A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2004
    • C:\Users\Admin\AppData\Local\Temp\S_0100388490101_05_07_20.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1912

    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

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    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\tmp406A.tmp
      MD5

      857dd8944938714763ac6d1d54f76bce

      SHA1

      d7ae356590d160ef2b202a716343f63112f1e8a3

      SHA256

      466769f579e82bfd9e00aa549cebb98658efdf8b7870389b4b915ebbc87929d2

      SHA512

      ade343baf7ee9862da5c1bcdb7201c597ca47ebc4438b11fdbceed83a076964bd528eb28f14353cb1cea12df6bb63e4db99f0f2ae7813b3db34ed2391da22601

      Download Submit
    • memory/1700-4-0x0000000000490000-0x0000000000493000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1700-3-0x0000000000C40000-0x0000000000C98000-memory.dmp
      Filesize

      352KB

      Download
    • memory/1700-0-0x0000000074D20000-0x000000007540E000-memory.dmp
      Filesize

      6.9MB

      Download
    • memory/1700-5-0x0000000006FC0000-0x0000000007011000-memory.dmp
      Filesize

      324KB

      Download
    • memory/1700-1-0x0000000001090000-0x0000000001091000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1704-8-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/1704-9-0x000000000044A67E-mapping.dmp
      Download
    • memory/1704-10-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/1704-11-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/1704-13-0x0000000074D20000-0x000000007540E000-memory.dmp
      Filesize

      6.9MB

      Download
    • memory/1912-16-0x0000000000000000-mapping.dmp
      Download
    • memory/2004-6-0x0000000000000000-mapping.dmp
      Download