Overview

overview

10

Static

static

PURCHASE ORDER.exe

windows7_x64

10

PURCHASE ORDER.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    157s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:34

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General

  • Target

    PURCHASE ORDER.exe

  • Size

    854KB

  • MD5

    925ec4c511aef015d943d357fed38a78

  • SHA1

    0d95b2c91d39b0c779a6b7c20aae5352b410f3f5

  • SHA256

    07424ad0d92da73a502fdc7ad3c67ee6a7e882cbfd3abfad1cf4f33c4b5e4597

  • SHA512

    bd5ebb1046e5378b9450d51e9d9931de6610ae5e00d62a028b9e4c058545ea858184a7699e65bfbe76d1c4b2c7f2e08a83e4ab621f67e8b341166e786a48d56f

Score
10/10
agentteslacollectionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    connect

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    connect

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 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
  • 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 8 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\PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2844
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\obUaHe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4853.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4196
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4500

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

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\PURCHASE ORDER.exe.log
    Filesize

    408B

    MD5

    e91022c75f1fa509d5e885934455081e

    SHA1

    cd2969406b78ad33a99dbd7ca4d1fa642b378803

    SHA256

    fa4e0be2df98aada3922e271a2a6af45975cd109aba4698627bb27a4f72e1851

    SHA512

    d89426367e230d7f4dddcce838d30f018965947ede3849e89c3cf345861db86a5ae7f83622444ba569e4e160977dcc7169507fa563bad8adb5a9d8cab8badd97

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmp4853.tmp
    Filesize

    1KB

    MD5

    e234c607500680c0942cbff4f8e50683

    SHA1

    ade8b22a3fc567ae2c7bae07617d77085a7f9b4f

    SHA256

    8f5b9ed63b91e5ca8a8597cb57487a6bb5315a1d7562a1fc7a7834e7a84c33ae

    SHA512

    2b32d09b8c47b56b6c12952416af0c7734feb8d217e9f6054a1dc59a16a4601be9f9081d43e7bc217eda5415c4ddd09678bbf15d7c9ee0abec2d5ddac9dcd13b

    Download Submit
  • memory/2844-131-0x0000000075370000-0x0000000075921000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4196-132-0x0000000000000000-mapping.dmp
    Download
  • memory/4500-134-0x0000000000000000-mapping.dmp
    Download
  • memory/4500-135-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/4500-137-0x0000000075370000-0x0000000075921000-memory.dmp
    Filesize

    5.7MB

    Download