Analysis

  • max time kernel
    42s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 09:36

General

  • Target

    fc23a4a16e5f2ad4467d969f7a53b5a67d9d3d33ef3d4.exe

  • Size

    1.4MB

  • MD5

    10dcb9e5aabe78f2bf22481b70658d15

  • SHA1

    19dad72451cb471f9762a6a7c72e57f2f17197bf

  • SHA256

    fc23a4a16e5f2ad4467d969f7a53b5a67d9d3d33ef3d427c7aa883916f8c251c

  • SHA512

    1afc876a8b5626a38af604a30127b0a1af9d0aa358b7fdb0e544e0f408a6599a7df5283fe09896eee04bd859b1dc0aff83481911a2e4a37bc02f1465f8f3f6dc

  • SSDEEP

    12288:pnjoI3rQqH/jnWZQzjFeM6DJOjB9sTTHyodgEGqURVOpsc534IToHIRiBOaIOvkz:hLHbnYQb6VO9RSscqNc

Malware Config

Extracted

Family

agenttesla

C2

http://45.155.165.63/3ip/inc/523ecb38582a9c.php

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
  • 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 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc23a4a16e5f2ad4467d969f7a53b5a67d9d3d33ef3d4.exe
    "C:\Users\Admin\AppData\Local\Temp\fc23a4a16e5f2ad4467d969f7a53b5a67d9d3d33ef3d4.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Users\Admin\AppData\Local\Temp\fc23a4a16e5f2ad4467d969f7a53b5a67d9d3d33ef3d4.exe
      C:\Users\Admin\AppData\Local\Temp\fc23a4a16e5f2ad4467d969f7a53b5a67d9d3d33ef3d4.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1464

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/1464-57-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1464-58-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1464-60-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1464-61-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1464-62-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1464-63-0x00000000004359EE-mapping.dmp
  • memory/1464-65-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1464-67-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1464-68-0x0000000075DA1000-0x0000000075DA3000-memory.dmp
    Filesize

    8KB

  • memory/1736-54-0x0000000000D40000-0x0000000000EB4000-memory.dmp
    Filesize

    1.5MB

  • memory/1736-55-0x00000000042C0000-0x0000000004374000-memory.dmp
    Filesize

    720KB

  • memory/1736-56-0x00000000044B0000-0x0000000004542000-memory.dmp
    Filesize

    584KB