Overview

overview

10

Static

static

Contract INV.exe

windows7_x64

10

Contract INV.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    122s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:14

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General

  • Target

    Contract INV.exe

  • Size

    509KB

  • MD5

    a5a33692171dfcaea7c829656937f4ee

  • SHA1

    ef45fe385cb22c559678c8204308898e78b8a874

  • SHA256

    95288eb9eb753179b5e44337933fa86d6d60889fe7189b445c73b8cc77f05240

  • SHA512

    e177455d9f75ce657d36e9492e98dba6a351c1665c7e8429c25fa3ef909122e2a31a3665ad2b615cb7ae23b9cec8023760f3c65844867a3a36f9780925b02b63

Score
10/10
agentteslacollectionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.transfastc.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Godalone147

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 6 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Contract INV.exe
    "C:\Users\Admin\AppData\Local\Temp\Contract INV.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:780
    • C:\Users\Admin\AppData\Local\Temp\Contract INV.exe
      "{path}"
      2⤵
        PID:1528
      • C:\Users\Admin\AppData\Local\Temp\Contract INV.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1576

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/780-54-0x00000000000A0000-0x0000000000126000-memory.dmp
      Filesize

      536KB

      Download
    • memory/780-55-0x0000000074E91000-0x0000000074E93000-memory.dmp
      Filesize

      8KB

      Download
    • memory/780-56-0x00000000005C0000-0x00000000005CA000-memory.dmp
      Filesize

      40KB

      Download
    • memory/780-57-0x0000000004CC0000-0x0000000004D32000-memory.dmp
      Filesize

      456KB

      Download
    • memory/780-58-0x0000000005000000-0x000000000505C000-memory.dmp
      Filesize

      368KB

      Download
    • memory/1576-59-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

      Download
    • memory/1576-60-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

      Download
    • memory/1576-62-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

      Download
    • memory/1576-63-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

      Download
    • memory/1576-64-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

      Download
    • memory/1576-65-0x0000000000446AEE-mapping.dmp
      Download
    • memory/1576-67-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

      Download
    • memory/1576-69-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

      Download