Analysis

  • max time kernel
    127s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    19-10-2021 05:42

General

  • Target

    Proforma Invoice.exe

  • Size

    129KB

  • MD5

    2abee0c90bce9307bd28b1f1607cbba4

  • SHA1

    bfb2912a7caeb1b73aca9847c6f05cfebebf54d9

  • SHA256

    21ac46250f6363cb7e193af0920eadc44d4ddeac442022510b8eaa11b3249d48

  • SHA512

    e4a0bd8d9205b5e5756169473cba75ad6341d2075be46f3850ea0dcf3324ea126123e278e63bcda93f57b311d4717960b0c28a7381930a5a6f081e9ed0283a43

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.croatiahunt.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    VilaVrgade852

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Downloads MZ/PE file
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1572
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:588

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Collection

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/588-64-0x000000000043766E-mapping.dmp
  • memory/588-59-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/588-60-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/588-61-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/588-62-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/588-63-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/588-65-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/588-67-0x0000000004660000-0x0000000004661000-memory.dmp
    Filesize

    4KB

  • memory/588-68-0x0000000004661000-0x0000000004662000-memory.dmp
    Filesize

    4KB

  • memory/1572-56-0x00000000004F0000-0x00000000004F2000-memory.dmp
    Filesize

    8KB

  • memory/1572-57-0x0000000000150000-0x0000000000152000-memory.dmp
    Filesize

    8KB

  • memory/1572-58-0x00000000001C0000-0x00000000001D5000-memory.dmp
    Filesize

    84KB

  • memory/1572-54-0x00000000012A0000-0x00000000012A1000-memory.dmp
    Filesize

    4KB