Analysis

  • max time kernel
    134s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    15-09-2021 07:07

General

  • Target

    RxAg5d0XQf9QdOX.exe

  • Size

    502KB

  • MD5

    c22accdb6ab455ea2856e6305b73f79e

  • SHA1

    7f42fb340e1dcceb111437c91df7035abf19467b

  • SHA256

    4d32cde8b04dae775b23225a0a79b1165b778caac83033b3ed1a6b1e564e85cb

  • SHA512

    1e1097ce6411f89cbabfcac82288e501aeecfe7cf69b961db7e7dd20abf6391980d169b850b1a7e724d93f9bf21e499b4fadab769af9051378398f909143c2dc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.priserveinfra.com
  • Port:
    587
  • Username:
    operations@priserveinfra.com
  • Password:
    oppipl121019

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RxAg5d0XQf9QdOX.exe
    "C:\Users\Admin\AppData\Local\Temp\RxAg5d0XQf9QdOX.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4524
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4640

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4524-115-0x0000000000970000-0x0000000000971000-memory.dmp
    Filesize

    4KB

  • memory/4524-117-0x0000000005940000-0x0000000005941000-memory.dmp
    Filesize

    4KB

  • memory/4524-118-0x0000000005360000-0x0000000005361000-memory.dmp
    Filesize

    4KB

  • memory/4524-119-0x0000000005410000-0x0000000005411000-memory.dmp
    Filesize

    4KB

  • memory/4524-120-0x0000000005610000-0x0000000005611000-memory.dmp
    Filesize

    4KB

  • memory/4524-121-0x0000000005510000-0x0000000005517000-memory.dmp
    Filesize

    28KB

  • memory/4524-122-0x00000000052C0000-0x0000000005352000-memory.dmp
    Filesize

    584KB

  • memory/4524-123-0x00000000060A0000-0x00000000060FC000-memory.dmp
    Filesize

    368KB

  • memory/4524-124-0x00000000085F0000-0x0000000008628000-memory.dmp
    Filesize

    224KB

  • memory/4640-125-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/4640-126-0x000000000043763E-mapping.dmp
  • memory/4640-131-0x0000000004CF0000-0x0000000004CF1000-memory.dmp
    Filesize

    4KB

  • memory/4640-132-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
    Filesize

    4KB

  • memory/4640-133-0x0000000005B40000-0x0000000005B41000-memory.dmp
    Filesize

    4KB

  • memory/4640-136-0x0000000004CF1000-0x0000000004CF2000-memory.dmp
    Filesize

    4KB