Overview

overview

10

Static

static

3

8c815ae383...99.exe

windows7-x64

10

8c815ae383...99.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    124s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 14:10

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General

  • Target

    8c815ae383f5010ad3812f65bf6f86bbb7d314d1ede3a7da57bf2bc163ee7b99.exe

  • Size

    512KB

  • MD5

    a936e25fe560242137e5443fd79eb9cd

  • SHA1

    d360479aa3f6d528bca67518adb4ce6f62b577df

  • SHA256

    8c815ae383f5010ad3812f65bf6f86bbb7d314d1ede3a7da57bf2bc163ee7b99

  • SHA512

    987742b18bada5064906ad713b23fe398ae767d4357e8928ed7d69b105e0b8cfc45501ff49382eefbbf05dbbef0e44acbac6dd2472490bd5e9f90273714cf89c

  • SSDEEP

    12288:g6UT9Ui2iN6pLLHLQ8Z30CR8LwkxnbiXt:9UT9Ui1WLLsq3Rowkk

Score
10/10
agentteslacollectioncredential_accessdiscoveryevasionexecutionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    webmail.karanex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Oi&-tmhj@d5v

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • Agenttesla family
    agenttesla
  • AgentTesla payload 5 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
    evasion
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

    spywarestealer
  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

    credential_accessstealer
  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c815ae383f5010ad3812f65bf6f86bbb7d314d1ede3a7da57bf2bc163ee7b99.exe
    "C:\Users\Admin\AppData\Local\Temp\8c815ae383f5010ad3812f65bf6f86bbb7d314d1ede3a7da57bf2bc163ee7b99.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:264
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8c815ae383f5010ad3812f65bf6f86bbb7d314d1ede3a7da57bf2bc163ee7b99.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2816
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bVCqXdQXZby" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6B7F.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2740
    • C:\Users\Admin\AppData\Local\Temp\8c815ae383f5010ad3812f65bf6f86bbb7d314d1ede3a7da57bf2bc163ee7b99.exe
      "C:\Users\Admin\AppData\Local\Temp\8c815ae383f5010ad3812f65bf6f86bbb7d314d1ede3a7da57bf2bc163ee7b99.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

5
T1552

Credentials In Files

4
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Virtualization/Sandbox Evasion

2
T1497

Lateral Movement

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • memory/264-0-0x00000000749CE000-0x00000000749CF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/264-1-0x0000000000F50000-0x0000000000FD6000-memory.dmp

    Filesize

    536KB

    Download

  • memory/264-2-0x00000000749C0000-0x00000000750AE000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/264-3-0x00000000008C0000-0x00000000008CE000-memory.dmp

    Filesize

    56KB

    Download

  • memory/264-4-0x00000000749CE000-0x00000000749CF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/264-5-0x00000000749C0000-0x00000000750AE000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/264-6-0x0000000004DD0000-0x0000000004E30000-memory.dmp

    Filesize

    384KB

    Download

  • memory/264-27-0x00000000749C0000-0x00000000750AE000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2632-20-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

    Download

  • memory/2632-14-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

    Download

  • memory/2632-23-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

    Download

  • memory/2632-26-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

    Download

  • memory/2632-24-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

    Download

  • memory/2632-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2632-18-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

    Download

  • memory/2632-16-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

    Download