Resubmissions

24-07-2023 06:32

230724-haylwaag65 10

16-07-2023 18:15

230716-wwbacshb7z 10

Analysis

  • max time kernel
    98s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    24-07-2023 06:32

General

  • Target

    1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe

  • Size

    898KB

  • MD5

    02cc74d9cac7d52bf1c63c43f017bcee

  • SHA1

    3ac771f8343e45ac63b5802535d179b2f574532c

  • SHA256

    1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67

  • SHA512

    98f15f8de33757d52d408690880eb7c2425274433ca9c0c315edb7451b73a701f0aa02012c04d9b0fb7392e7b986ae01a87acb40b94a9bb7fdd59da9e4e9c646

  • SSDEEP

    24576:QIhzYOPW2rEloDwdMRHP4/LBmf74RWoJ:wOzrsocdMRv4/LW74RWoJ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    account26@lonqsailing.net
  • Password:
    IZmBVEm3

Signatures

  • AgentTesla

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

  • AgentTesla payload 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
    "C:\Users\Admin\AppData\Local\Temp\1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Users\Admin\AppData\Local\Temp\1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.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:2172

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2128-54-0x00000000013B0000-0x0000000001498000-memory.dmp
    Filesize

    928KB

  • memory/2128-55-0x00000000744B0000-0x0000000074B9E000-memory.dmp
    Filesize

    6MB

  • memory/2128-56-0x0000000000300000-0x000000000030A000-memory.dmp
    Filesize

    40KB

  • memory/2128-57-0x00000000744B0000-0x0000000074B9E000-memory.dmp
    Filesize

    6MB

  • memory/2128-58-0x0000000007050000-0x0000000007090000-memory.dmp
    Filesize

    256KB

  • memory/2128-59-0x0000000000710000-0x0000000000764000-memory.dmp
    Filesize

    336KB

  • memory/2128-71-0x00000000744B0000-0x0000000074B9E000-memory.dmp
    Filesize

    6MB

  • memory/2172-63-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2172-62-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2172-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2172-61-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2172-66-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2172-68-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2172-70-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2172-60-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2172-72-0x00000000744B0000-0x0000000074B9E000-memory.dmp
    Filesize

    6MB

  • memory/2172-73-0x0000000004F20000-0x0000000004F60000-memory.dmp
    Filesize

    256KB

  • memory/2172-74-0x00000000744B0000-0x0000000074B9E000-memory.dmp
    Filesize

    6MB

  • memory/2172-75-0x0000000004F20000-0x0000000004F60000-memory.dmp
    Filesize

    256KB

  • memory/2172-77-0x0000000004F20000-0x0000000004F60000-memory.dmp
    Filesize

    256KB