Analysis

  • max time kernel
    124s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    19-10-2021 09:52

General

  • Target

    Proforma Invoice PDF.exe

  • Size

    82KB

  • MD5

    e77c819969d8520d9bbd027dd1bfaa04

  • SHA1

    27d6482b5777767e98838d5dd2e9d431e2f3ae97

  • SHA256

    6fa5cdc1c01f21f752a968277cb495f3bf83b9171456b83483be4d5d4cea543d

  • SHA512

    de26847a6cc7244ecf566ab2e3126ab27f14b86a8404f30871fc0606fcac8e2dec21c2552c777e7faa945136343e0999c5017e015d72ab79990c5373d40f5748

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    kerekesfoto.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    admin@abc123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Downloads MZ/PE file
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Proforma Invoice PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Proforma Invoice PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1684
    • 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
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1888

Network

MITRE ATT&CK Matrix ATT&CK v6

Collection

Email Collection

1
T1114

Replay Monitor

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Downloads

  • memory/1684-115-0x0000000000900000-0x0000000000901000-memory.dmp
    Filesize

    4KB

  • memory/1684-117-0x0000000002AD0000-0x0000000002AD2000-memory.dmp
    Filesize

    8KB

  • memory/1684-118-0x0000000001000000-0x0000000001002000-memory.dmp
    Filesize

    8KB

  • memory/1684-119-0x0000000001200000-0x0000000001208000-memory.dmp
    Filesize

    32KB

  • memory/1888-121-0x000000000043760E-mapping.dmp
  • memory/1888-120-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1888-124-0x0000000005530000-0x0000000005531000-memory.dmp
    Filesize

    4KB

  • memory/1888-125-0x00000000050D0000-0x00000000050D1000-memory.dmp
    Filesize

    4KB

  • memory/1888-126-0x0000000004F90000-0x0000000004F91000-memory.dmp
    Filesize

    4KB

  • memory/1888-127-0x0000000005070000-0x0000000005071000-memory.dmp
    Filesize

    4KB

  • memory/1888-128-0x0000000005C20000-0x0000000005C21000-memory.dmp
    Filesize

    4KB

  • memory/1888-129-0x00000000060F0000-0x00000000060F1000-memory.dmp
    Filesize

    4KB

  • memory/1888-130-0x00000000054C0000-0x00000000054C1000-memory.dmp
    Filesize

    4KB