Analysis

  • max time kernel
    129s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    17-10-2021 11:13

General

  • Target

    Purchase Order.exe

  • Size

    735KB

  • MD5

    f8c04a79425fbd0bde8ee6dd132d655b

  • SHA1

    b10826eb64f5d2469df8f776df34405cee0d1d05

  • SHA256

    6459b80dbdfbf19a21456659f618c0e22693b4d2389e5cfbba864e5d2b85eb1a

  • SHA512

    3e02e41db2e64c12360972886ed83838c45d702f68d1bc07a47e613d1c8392d13ba393eb6cecbe18a7d4991229b7f6e89525d61bdb0dd77815422956b4c3d92d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ananthasuites.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Anantha225@#

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 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\Purchase Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2164

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchase Order.exe.log

    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • memory/2164-126-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2164-135-0x0000000005F00000-0x0000000005F01000-memory.dmp

    Filesize

    4KB

  • memory/2164-134-0x00000000053A0000-0x00000000053A1000-memory.dmp

    Filesize

    4KB

  • memory/2164-133-0x0000000005310000-0x000000000580E000-memory.dmp

    Filesize

    5.0MB

  • memory/2164-127-0x00000000004374BE-mapping.dmp

  • memory/2696-120-0x0000000005320000-0x000000000581E000-memory.dmp

    Filesize

    5.0MB

  • memory/2696-123-0x0000000002CB0000-0x0000000002CBE000-memory.dmp

    Filesize

    56KB

  • memory/2696-124-0x0000000008EA0000-0x0000000008F15000-memory.dmp

    Filesize

    468KB

  • memory/2696-125-0x0000000009F20000-0x0000000009F58000-memory.dmp

    Filesize

    224KB

  • memory/2696-122-0x00000000055C0000-0x00000000055C1000-memory.dmp

    Filesize

    4KB

  • memory/2696-121-0x0000000005330000-0x0000000005331000-memory.dmp

    Filesize

    4KB

  • memory/2696-115-0x00000000009C0000-0x00000000009C1000-memory.dmp

    Filesize

    4KB

  • memory/2696-119-0x00000000053C0000-0x00000000053C1000-memory.dmp

    Filesize

    4KB

  • memory/2696-118-0x0000000005820000-0x0000000005821000-memory.dmp

    Filesize

    4KB

  • memory/2696-117-0x0000000005280000-0x0000000005281000-memory.dmp

    Filesize

    4KB