Analysis

  • max time kernel
    91s
  • max time network
    98s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    06-12-2022 08:04

General

  • Target

    2dd2a4107767b2d3f0c8177377178d08.exe

  • Size

    838KB

  • MD5

    2dd2a4107767b2d3f0c8177377178d08

  • SHA1

    2c8f5323705ddde2d4d8db0c853d06b5e07a0319

  • SHA256

    3f08f63c3f336f3823c710a40e674421bbc6316e0088e0989d1ac06085bc5b62

  • SHA512

    8a2e1cc06dc7dfc5b1b8fad76003f45f825a2559e82f39df71ba7dabc5d1b51495e4fdc196bf0018f139ed05213df978a2f61e1ec5359788efefb17e8ac1a172

  • SSDEEP

    12288:7cy0Smns9jHujs5clbgzvGgCT8H0cscBWe5RoNKjmavgKZ/nXt7virmWhlGLaQYI:Iemns9TuYibl8+uW4RoNg

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 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\2dd2a4107767b2d3f0c8177377178d08.exe
    "C:\Users\Admin\AppData\Local\Temp\2dd2a4107767b2d3f0c8177377178d08.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1620
    • C:\Users\Admin\AppData\Local\Temp\2dd2a4107767b2d3f0c8177377178d08.exe
      "C:\Users\Admin\AppData\Local\Temp\2dd2a4107767b2d3f0c8177377178d08.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1000

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1000-64-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1000-63-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1000-68-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1000-70-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1000-66-0x00000000004324DE-mapping.dmp
  • memory/1000-61-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1000-65-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1000-60-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1620-55-0x0000000075C81000-0x0000000075C83000-memory.dmp
    Filesize

    8KB

  • memory/1620-54-0x00000000002B0000-0x0000000000388000-memory.dmp
    Filesize

    864KB

  • memory/1620-59-0x0000000002130000-0x0000000002176000-memory.dmp
    Filesize

    280KB

  • memory/1620-58-0x0000000005600000-0x000000000567E000-memory.dmp
    Filesize

    504KB

  • memory/1620-57-0x00000000004D0000-0x00000000004DE000-memory.dmp
    Filesize

    56KB

  • memory/1620-56-0x00000000003B0000-0x00000000003C6000-memory.dmp
    Filesize

    88KB