Overview

overview

10

Static

static

Halkbank_E...59.exe

windows7_x64

10

Halkbank_E...59.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    142s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 01:37

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General

  • Target

    Halkbank_Ekstre_20200213_154827_701859.exe

  • Size

    468KB

  • MD5

    d96dd42bfca040bf5d1b39bdf86621c7

  • SHA1

    6190b602dd823c485cbdd036d355b13c6e9995a5

  • SHA256

    69e836f80b35f0405195f3eab755c9c0c4be8e1331693228675348b7a2660f79

  • SHA512

    f8e1de487f62c094ecbb75c183a8d6c178e4633d38fdbb205dd9c23e1e285e6093009f847f8d06d299839a89e49bb96e221162a2c74d7523c3ac6c54fab9c877

Score
10/10
agentteslacollectioncoreentitykeyloggerrezer0spywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    %smtp%
  • Port:
    587

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 1 IoCs
  • ReZer0 packer 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.

    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
  • 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 WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200213_154827_701859.exe
    "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200213_154827_701859.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2024
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uOwQzAQP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1F45.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1752
    • C:\Windows\SysWOW64\netsh.exe
      "netsh" wlan show profile
      2⤵
        PID:1552

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp1F45.tmp
      Filesize

      1KB

      MD5

      c87c8b7759565f3043bdb4f55569d4a5

      SHA1

      5e94fa7431496a9d201e403fd89c4035140ecda3

      SHA256

      fcc2f6edd68437e3dea657bf56e02bae8815dcf5651c31e729e61ca70c02616f

      SHA512

      4b6655a33815c171924ec2739a26ee793c39808cb84bb17693b3bf199cc9bcee1e643dd955f052c564eea1f7e9267754251a70803297e128cccca8b13df73df1

      Download Submit
    • memory/1552-61-0x0000000000000000-mapping.dmp
      Download
    • memory/1752-58-0x0000000000000000-mapping.dmp
      Download
    • memory/2024-54-0x00000000001D0000-0x000000000024C000-memory.dmp
      Filesize

      496KB

      Download
    • memory/2024-55-0x0000000074DD1000-0x0000000074DD3000-memory.dmp
      Filesize

      8KB

      Download
    • memory/2024-56-0x0000000000620000-0x0000000000628000-memory.dmp
      Filesize

      32KB

      Download
    • memory/2024-57-0x0000000004B30000-0x0000000004B88000-memory.dmp
      Filesize

      352KB

      Download
    • memory/2024-60-0x0000000005210000-0x0000000005262000-memory.dmp
      Filesize

      328KB

      Download