Overview

overview

10

Static

static

a83a9e5760...e9.exe

windows7_x64

10

a83a9e5760...e9.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    90s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:57

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General

  • Target

    a83a9e5760babc377c95ad2aa5d8b9e895f445cf4c0f8869a4ebc4be3fbaf3e9.exe

  • Size

    490KB

  • MD5

    75c564a6cdbdabbfebc987ca24175e8f

  • SHA1

    d20db6904b85c9e65a62aa0d14cb673f7f8d5678

  • SHA256

    a83a9e5760babc377c95ad2aa5d8b9e895f445cf4c0f8869a4ebc4be3fbaf3e9

  • SHA512

    0317342c9347dca4c5cb41151149696807830b49865bc47657616ba60a7ed5102f08e0daa849871bb9cc948db2b1a08916ee5da067ef16c3eceebe4a53bc8ad6

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    z123456789ok

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • 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.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a83a9e5760babc377c95ad2aa5d8b9e895f445cf4c0f8869a4ebc4be3fbaf3e9.exe
    "C:\Users\Admin\AppData\Local\Temp\a83a9e5760babc377c95ad2aa5d8b9e895f445cf4c0f8869a4ebc4be3fbaf3e9.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4352
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QfDjfEX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2115.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:64
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3188

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

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp2115.tmp
    Filesize

    1KB

    MD5

    c241f77b0f5d376cda11e70d839bfc1d

    SHA1

    7e6de4e8886e0d04f323b9c52d5c0c8ef1d88d23

    SHA256

    da38d75a6633443dee5b55d691a99bd315f169684daf8104fc01008c88fe5fae

    SHA512

    604466c7d81c9189afd7aece1e849230fff987d17988658cae09a1854ff8c181c5f32b4bd100c0adda030dccd4cb0e3b7fac03fbca97dc33fe24d60bd1069aef

    Download Submit
  • memory/64-136-0x0000000000000000-mapping.dmp
    Download
  • memory/3188-138-0x0000000000000000-mapping.dmp
    Download
  • memory/3188-139-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/3188-140-0x00000000066A0000-0x00000000066F0000-memory.dmp
    Filesize

    320KB

    Download
  • memory/4352-130-0x00000000004F0000-0x0000000000572000-memory.dmp
    Filesize

    520KB

    Download
  • memory/4352-131-0x0000000005620000-0x0000000005BC4000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/4352-132-0x0000000004FC0000-0x0000000005052000-memory.dmp
    Filesize

    584KB

    Download
  • memory/4352-133-0x0000000004F20000-0x0000000004F2A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/4352-134-0x0000000007730000-0x00000000077CC000-memory.dmp
    Filesize

    624KB

    Download
  • memory/4352-135-0x0000000007AC0000-0x0000000007B26000-memory.dmp
    Filesize

    408KB

    Download