Overview

overview

10

Static

static

overdue in......exe

windows7_x64

10

overdue in......exe

windows10-2004_x64

10

Analysis

  • max time kernel
    124s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220414-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

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 6 IoCs
  • 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 13 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⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zRCQEZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB26F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:892
    • 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:1252

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

System Information Discovery

1
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\Temp\tmpB26F.tmp
    Filesize

    1KB

    MD5

    a5c664eb7931fca425aabe7fded65b5f

    SHA1

    2b5dd436b545dde6cc22f7b911f4c6efaa313b59

    SHA256

    df22497993ee539e0e2f2ee4b0bee80f149f2ed85675bccd549ca5e9a523a117

    SHA512

    9b37e6e9e96b51344b86234f1eac02d67528ca3015eb83ee1e785406a5225c7fc5184884a3cd2b21e9013823bf2207ad77b8ede87ab23608946b47390b77796d

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  • memory/892-58-0x0000000000000000-mapping.dmp
    Download
  • memory/1252-63-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/1252-60-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/1252-61-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/1252-65-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/1252-64-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/1252-66-0x0000000000445ECE-mapping.dmp
    Download
  • memory/1252-68-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/1252-70-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/1528-57-0x0000000075391000-0x0000000075393000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1528-56-0x00000000042B0000-0x0000000004302000-memory.dmp
    Filesize

    328KB

    Download
  • memory/1528-55-0x00000000003F0000-0x00000000003FA000-memory.dmp
    Filesize

    40KB

    Download
  • memory/1528-54-0x00000000009F0000-0x0000000000A7E000-memory.dmp
    Filesize

    568KB

    Download