Overview

overview

10

Static

static

overdue in......exe

windows7_x64

10

overdue in......exe

windows10-2004_x64

10

Analysis

  • max time kernel
    143s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:18

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General

  • Target

    overdue invoice.pdf...exe

  • Size

    539KB

  • MD5

    fa0c9ce3695691566ec8fbba088433c6

  • SHA1

    1b5693cbe7521087c8bb5b46a8706edb71b037a4

  • SHA256

    93c807a2fb8dff5a30d9f860f1eb98304d8303f8fff4c53c98870201d6d3eb68

  • SHA512

    b3bb49000f13d18163d685905384b7acbca9b165cc009b53830c7f567b5c9f762fb6c6d1c08036db774265c1048d3e62b6ca198253a37a8a5a19adcffac4c57a

Score
10/10
agentteslacollectionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    mail.matrixas.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    info2013

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.matrixas.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    info2013

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • 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 WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\overdue invoice.pdf...exe
    "C:\Users\Admin\AppData\Local\Temp\overdue invoice.pdf...exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zRCQEZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC66D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2824
    • C:\Users\Admin\AppData\Local\Temp\overdue invoice.pdf...exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4484

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\overdue invoice.pdf...exe.log
    Filesize

    507B

    MD5

    76ffb2f33cb32ade8fc862a67599e9d8

    SHA1

    920cc4ab75b36d2f9f6e979b74db568973c49130

    SHA256

    f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310

    SHA512

    f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmpC66D.tmp
    Filesize

    1KB

    MD5

    6150ecbd348919a0a83b058339014590

    SHA1

    b27a328394de96f0ad2f2638848a4f8fa0ccec92

    SHA256

    1158ff6d200d748de3268d80e77a9f707fc44da65df9ce15576f4bb0ec9d2fbd

    SHA512

    75a70e7eaf33d66ff1cdef570855ae238eaf3b08aa3470779ad782409f934cddf7270611abe4a3d1a764d4fd50cd35ffe5851a89853fb21a664d2f6a14bd93cc

    Download Submit
  • memory/2632-130-0x00000000009C0000-0x0000000000A4E000-memory.dmp
    Filesize

    568KB

    Download
  • memory/2632-131-0x0000000007E50000-0x00000000083F4000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/2632-132-0x0000000007940000-0x00000000079D2000-memory.dmp
    Filesize

    584KB

    Download
  • memory/2632-133-0x0000000007A80000-0x0000000007B1C000-memory.dmp
    Filesize

    624KB

    Download
  • memory/2824-134-0x0000000000000000-mapping.dmp
    Download
  • memory/4484-136-0x0000000000000000-mapping.dmp
    Download
  • memory/4484-137-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/4484-139-0x0000000005C90000-0x0000000005CF6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/4484-140-0x0000000006150000-0x00000000061A0000-memory.dmp
    Filesize

    320KB

    Download
  • memory/4484-141-0x00000000061E0000-0x00000000061EA000-memory.dmp
    Filesize

    40KB

    Download