Analysis

  • max time kernel
    130s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 18:18

General

  • Target

    dfcca1c0512fb60c55bc167340b8e653.exe

  • Size

    857KB

  • MD5

    dfcca1c0512fb60c55bc167340b8e653

  • SHA1

    95931116c675f2b616c169c2bd62af810751ce22

  • SHA256

    d2ac9d14c748cb3068f47fb3b8e0c30466f14a706eb17737b9122a8f8a023f0c

  • SHA512

    e76a9c15f77173ea568b912260ff970420dbdd962d46fc2575491257cd45a684c2f0577eafc15aa693c6fe46738487a86b64933c2c17ea062ebdf96fe7ec080e

  • SSDEEP

    12288:tsK51JPhdVEnz3LGg9K1rJHaF1nVqwOXe4pyiosTwQA/kod+dKLfrYARYeMgeP/P:yK51JPL6Ho4nQfpdj3woW7mo5oFCEkv

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.simpleitalian.com.au
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    SIpassword101$

Signatures

  • AgentTesla

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

  • AgentTesla payload 8 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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\dfcca1c0512fb60c55bc167340b8e653.exe
    "C:\Users\Admin\AppData\Local\Temp\dfcca1c0512fb60c55bc167340b8e653.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2164
    • C:\Users\Admin\AppData\Local\Temp\dfcca1c0512fb60c55bc167340b8e653.exe
      "C:\Users\Admin\AppData\Local\Temp\dfcca1c0512fb60c55bc167340b8e653.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2744

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2164-19-0x0000000073EB0000-0x000000007459E000-memory.dmp
    Filesize

    6.9MB

  • memory/2164-2-0x0000000000BD0000-0x0000000000C10000-memory.dmp
    Filesize

    256KB

  • memory/2164-0-0x0000000000FC0000-0x000000000109C000-memory.dmp
    Filesize

    880KB

  • memory/2164-3-0x0000000000320000-0x0000000000332000-memory.dmp
    Filesize

    72KB

  • memory/2164-4-0x0000000073EB0000-0x000000007459E000-memory.dmp
    Filesize

    6.9MB

  • memory/2164-5-0x0000000000BD0000-0x0000000000C10000-memory.dmp
    Filesize

    256KB

  • memory/2164-6-0x0000000008060000-0x00000000080E4000-memory.dmp
    Filesize

    528KB

  • memory/2164-7-0x0000000000960000-0x00000000009A2000-memory.dmp
    Filesize

    264KB

  • memory/2164-1-0x0000000073EB0000-0x000000007459E000-memory.dmp
    Filesize

    6.9MB

  • memory/2744-16-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2744-24-0x00000000049B0000-0x00000000049F0000-memory.dmp
    Filesize

    256KB

  • memory/2744-14-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2744-8-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2744-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2744-9-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2744-11-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2744-21-0x00000000049B0000-0x00000000049F0000-memory.dmp
    Filesize

    256KB

  • memory/2744-20-0x0000000073EB0000-0x000000007459E000-memory.dmp
    Filesize

    6.9MB

  • memory/2744-18-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2744-22-0x0000000073EB0000-0x000000007459E000-memory.dmp
    Filesize

    6.9MB

  • memory/2744-23-0x00000000049B0000-0x00000000049F0000-memory.dmp
    Filesize

    256KB

  • memory/2744-10-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB