Analysis

  • max time kernel
    87s
  • max time network
    73s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • submitted
    22-09-2022 09:20

General

  • Target

    Zamówienie - ZDIP202205000078_pdf.exe

  • Size

    17KB

  • MD5

    b3458d7ad3e3776d001ed92327db9340

  • SHA1

    358af2f87459178463b99fcc1268601294980d0f

  • SHA256

    5346043dfbfe7feba21592affd4b65e85918c365006f071152edef9210434938

  • SHA512

    8221de49795fc6186c88f043d6e4bc768c31a13bdec75b44a6fe6b7f24a050c9c97267f79c309850104cbc7bd86bb13f4a232b11da39a98ce16c9690a8a3cf7d

  • SSDEEP

    192:y7uoFmJKlLCbkUtoefp6Hn9/CK6EhfTl:DULCbkHApsn9/CNM

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5630874250:AAEDuunIn-R-MBj31dAwDrUJIyI2VkuBgP4/

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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Zamówienie - ZDIP202205000078_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Zamówienie - ZDIP202205000078_pdf.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:240
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1136
    • C:\Users\Admin\AppData\Local\Temp\Zamówienie - ZDIP202205000078_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Zamówienie - ZDIP202205000078_pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1052

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

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/240-54-0x0000000000D40000-0x0000000000D4A000-memory.dmp
    Filesize

    40KB

  • memory/240-55-0x0000000075DA1000-0x0000000075DA3000-memory.dmp
    Filesize

    8KB

  • memory/240-56-0x0000000005780000-0x0000000005840000-memory.dmp
    Filesize

    768KB

  • memory/240-57-0x0000000005090000-0x0000000005122000-memory.dmp
    Filesize

    584KB

  • memory/1052-68-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1052-63-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1052-66-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1052-64-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1052-67-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1052-69-0x00000000004359AE-mapping.dmp
  • memory/1052-73-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1052-71-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1136-60-0x000000006EF00000-0x000000006F4AB000-memory.dmp
    Filesize

    5.7MB

  • memory/1136-61-0x000000006EF00000-0x000000006F4AB000-memory.dmp
    Filesize

    5.7MB

  • memory/1136-62-0x000000006EF00000-0x000000006F4AB000-memory.dmp
    Filesize

    5.7MB

  • memory/1136-58-0x0000000000000000-mapping.dmp