Overview

overview

10

Static

static

IMG_001.PDF .scr

windows7_x64

10

IMG_001.PDF .scr

windows10-2004_x64

10

Analysis

  • max time kernel
    111s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 02:17

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General

  • Target

    IMG_001.PDF .scr

  • Size

    801KB

  • MD5

    ea7e544c5ce02aa13442622b95251675

  • SHA1

    98a25cacce296e3aff2fb569a1453329f5690b5e

  • SHA256

    d2eac9fe75330d388b2f86c4c90d4d34f5f92caea368386414ca576feb70343e

  • SHA512

    31334cc35753923df9ea752bd0b81913fd3ec92b5c144345486bf832c7180ff2b15cb533ad2f3f21fd360acbc0aa4c284eb90b39aa892bae71b0d72e65046e82

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    wRwswHW2

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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
  • 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\IMG_001.PDF .scr
    "C:\Users\Admin\AppData\Local\Temp\IMG_001.PDF .scr" /S
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:988
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4560

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
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

  • memory/988-130-0x0000000000DE0000-0x0000000000EAE000-memory.dmp
    Filesize

    824KB

    Download
  • memory/988-131-0x0000000005870000-0x000000000590C000-memory.dmp
    Filesize

    624KB

    Download
  • memory/988-132-0x00000000059B0000-0x0000000005A42000-memory.dmp
    Filesize

    584KB

    Download
  • memory/988-133-0x00000000065C0000-0x0000000006B64000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/988-134-0x0000000006060000-0x00000000060C6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/4560-135-0x0000000000000000-mapping.dmp
    Download
  • memory/4560-136-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/4560-137-0x00000000061B0000-0x00000000061BA000-memory.dmp
    Filesize

    40KB

    Download