Overview

overview

10

Static

static

cataloco E...df.exe

windows7_x64

10

cataloco E...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    111s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:19

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General

  • Target

    cataloco ECOR 2 Dl2.pdf.exe

  • Size

    439KB

  • MD5

    4ef34b916c5b6593e719a6b9a17481d1

  • SHA1

    25aeecfaeca807ec26d0ba461cba1c29f8137da4

  • SHA256

    1a5841a21e616296c4aafe372c36998c9e46c1f79513a379e59ee7aedc7a2535

  • SHA512

    a2c3c775b2153f9697834123eb7555c8978c613353291f2eb73b69a5c3675dd37599f9d969d9dec4cb05ef8b30d2cb40cd6e78a8e8b926f98dddd83aa4a44d71

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.cosur.pe
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    C0m3rc14l%

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.

  • 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
  • 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 6 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cataloco ECOR 2 Dl2.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\cataloco ECOR 2 Dl2.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:1940
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp30C4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3436
    • C:\Users\Admin\AppData\Local\Temp\cataloco ECOR 2 Dl2.pdf.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1964

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

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

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\tmp30C4.tmp
    Filesize

    1KB

    MD5

    ab9f8a9574d9209cd8666decb37e33cc

    SHA1

    b768b98d37b96bcf5eeeb4bae10589a196b66db2

    SHA256

    2c052172f943620c36053efd2ab1d6ef9fbb671c55669b9f49430f0f7acd7704

    SHA512

    5059538580cce17a2c7516e3117297310455e38ff32d51c6e17ef188448ce3567f9c968ad478df725ed2ce8630ceee2340246264a6e60877895591a67d45da70

    Download Submit
  • memory/1940-130-0x0000000000660000-0x00000000006D4000-memory.dmp
    Filesize

    464KB

    Download
  • memory/1940-131-0x00000000055A0000-0x0000000005B44000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/1940-132-0x0000000005090000-0x0000000005122000-memory.dmp
    Filesize

    584KB

    Download
  • memory/1940-133-0x0000000005080000-0x000000000508A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/1940-134-0x00000000088E0000-0x000000000897C000-memory.dmp
    Filesize

    624KB

    Download
  • memory/1940-135-0x000000000E7D0000-0x000000000E836000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1964-138-0x0000000000000000-mapping.dmp
    Download
  • memory/1964-139-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/1964-140-0x00000000067E0000-0x0000000006830000-memory.dmp
    Filesize

    320KB

    Download
  • memory/3436-136-0x0000000000000000-mapping.dmp
    Download