Overview

overview

10

Static

static

Halkbank_E...df.exe

windows7_x64

10

Halkbank_E...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    130s
  • max time network
    39s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 12:18

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General

  • Target

    Halkbank_Ekstre_20200527_080247_232393.pdf.exe

  • Size

    398KB

  • MD5

    99c93f716eed17f114c02ed2e193faf1

  • SHA1

    f660c44f96be37b147fc9f4dc4eeff48c74b16b1

  • SHA256

    ea7084c6771d3582c0b95ef3cd3ce4e371cfcc7b41f358e8645e4bf4870fa2f2

  • SHA512

    3f754550095a7da74e4a83fcbfc2e91fa588d1503e1644be809ac6e62a9d120a4679ddbdcdf9bd1ac3a827909cd65abea81f0f1ca69272b5c3a93b208cf0dec3

Score
10/10
agentteslacollectioncoreentitykeyloggerrezer0spywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    lazerkesim@nesermetal.com
  • Password:
    335410

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 6 IoCs
  • ReZer0 packer 1 IoCs

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

    rezer0
  • Drops file in Drivers directory 1 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 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\Halkbank_Ekstre_20200527_080247_232393.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200527_080247_232393.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200527_080247_232393.pdf.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1356
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1324

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/848-54-0x00000000001A0000-0x000000000020A000-memory.dmp
      Filesize

      424KB

      Download
    • memory/848-55-0x0000000075951000-0x0000000075953000-memory.dmp
      Filesize

      8KB

      Download
    • memory/848-56-0x0000000000490000-0x0000000000498000-memory.dmp
      Filesize

      32KB

      Download
    • memory/848-57-0x0000000004680000-0x00000000046D8000-memory.dmp
      Filesize

      352KB

      Download
    • memory/1324-70-0x0000000000000000-mapping.dmp
      Download
    • memory/1356-61-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/1356-59-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/1356-62-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/1356-63-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/1356-64-0x000000000044C82E-mapping.dmp
      Download
    • memory/1356-66-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/1356-68-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/1356-58-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download