Overview

overview

10

Static

static

9

Akbank Bildirimi.exe

windows7_x64

10

Akbank Bildirimi.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:05

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General

  • Target

    Akbank Bildirimi.exe

  • Size

    530KB

  • MD5

    6864baa092a9d571a6b2b90994695ec8

  • SHA1

    360b38f1050fa182cb4c579dd7af60d784d3f543

  • SHA256

    6c731b9e623222de40d78c857573d713bafce156a4b42dd445a840fddfe585be

  • SHA512

    91fde501a8d514ff2ffeb12d0deb7721c372ccbf657e962e4ad5b35f0500a6fb5aa7e1b150ea4042ded50d7e898b5e8f432c8ee5ef931a08462a314cc4e5dd80

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    gatefee22

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    gatefee22

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • CoreCCC Packer 1 IoCs

    Detects CoreCCC packer used to load .NET malware.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Akbank Bildirimi.exe
    "C:\Users\Admin\AppData\Local\Temp\Akbank Bildirimi.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3588
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iCbkAkaGXo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9261.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3804
    • C:\Users\Admin\AppData\Local\Temp\Akbank Bildirimi.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:4516
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1932

    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\tmp9261.tmp
      Filesize

      1KB

      MD5

      2b332daa2a0756e24f9af2b7a0fd51fd

      SHA1

      0fb5ed66afdcf96a643de25eaddd49fd61e7f583

      SHA256

      abc23c7f53360ac686a70fd344dbdacfcba1504a36261b076c206ac9492383f6

      SHA512

      ae8eaffefeb500f92fcdb97ced3f7450d5ab89cdee3d01007ed47d9a069e660fa4fd67d9061ed53500fb1e5fccd2e7635a85556f0be5ac47391a30313e976d86

      Download Submit
    • memory/1932-141-0x0000000000000000-mapping.dmp
      Download
    • memory/3588-130-0x0000000000B10000-0x0000000000B9A000-memory.dmp
      Filesize

      552KB

      Download
    • memory/3588-131-0x0000000005B20000-0x00000000060C4000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/3588-132-0x0000000005570000-0x0000000005602000-memory.dmp
      Filesize

      584KB

      Download
    • memory/3588-133-0x0000000005540000-0x000000000554A000-memory.dmp
      Filesize

      40KB

      Download
    • memory/3588-134-0x0000000007A40000-0x0000000007ADC000-memory.dmp
      Filesize

      624KB

      Download
    • memory/3588-135-0x0000000007E00000-0x0000000007E66000-memory.dmp
      Filesize

      408KB

      Download
    • memory/3804-136-0x0000000000000000-mapping.dmp
      Download
    • memory/4516-138-0x0000000000000000-mapping.dmp
      Download
    • memory/4516-139-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/4516-140-0x0000000006060000-0x00000000060B0000-memory.dmp
      Filesize

      320KB

      Download