Overview

overview

10

Static

static

pzfKBUp9OK3KBEV.exe

windows7_x64

10

pzfKBUp9OK3KBEV.exe

windows10_x64

3

Analysis

  • max time kernel
    60s
  • max time network
    60s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    13-07-2020 06:33

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General

  • Target

    pzfKBUp9OK3KBEV.exe

  • Size

    401KB

  • MD5

    96fb94b8946efa330fa527dafbe56813

  • SHA1

    63ae0fa193b86da066af6a2b7e90e64e4b5661ec

  • SHA256

    deb000698f0c002307d6afbb61195804c955ae5b1141a1a1657ce0c5c1911e98

  • SHA512

    ef011685bce609e2477fd74043009061dc1bdca2132c23cf6eff0d8212e6373e5b32a29fa2434e2735cd661ed4542a29297ce564cd9144fc6418fedebb619bd8

Score
10/10
agentteslakeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Pencil_00

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 4 IoCs
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pzfKBUp9OK3KBEV.exe
    "C:\Users\Admin\AppData\Local\Temp\pzfKBUp9OK3KBEV.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kJjgkx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp85E1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:324
    • C:\Users\Admin\AppData\Local\Temp\pzfKBUp9OK3KBEV.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1512

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\tmp85E1.tmp
    MD5

    261f2baa8cab7d0e072a2ccdc553271e

    SHA1

    004b700aad378022975ae1fa0fc041d47ce9bf84

    SHA256

    6e5b62f35457161908c8793aab7b94a791df91504e33cec546dfa2f800f1e057

    SHA512

    655632fe0453ccda9f6e6634b0e3866709f081dfe3e699b4306838b02c70e55cd72456e3b5b1cebadb8792d8bca768cc4ed12be60e3140d1e1fcddb36d3de6a7

    Download Submit
  • memory/324-2-0x0000000000000000-mapping.dmp
    Download
  • memory/1512-4-0x0000000000400000-0x0000000000450000-memory.dmp
    Filesize

    320KB

    Download
  • memory/1512-5-0x000000000044A7BE-mapping.dmp
    Download
  • memory/1512-6-0x0000000000400000-0x0000000000450000-memory.dmp
    Filesize

    320KB

    Download
  • memory/1512-7-0x0000000000400000-0x0000000000450000-memory.dmp
    Filesize

    320KB

    Download
  • memory/1544-1-0x0000000000000000-0x0000000000000000-disk.dmp
    Download