Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    01-12-2021 14:19

General

  • Target

    Partial Shipment.exe

  • Size

    524KB

  • MD5

    fb4ef1d57ffa0758e5a568c5313fc133

  • SHA1

    5f70d106aaded7fcd64576c9261bac9204c77ee4

  • SHA256

    ff34c1fd26b699489cb814f93a2801ea4c32cc33faf30f32165b23425b0780c7

  • SHA512

    05465dde0a682c872a7d60a046ee3edc0a16fd2da73bec613931dbc442dea9cbba15ef01f6bb50d95fc8b29a83e0d8b7d1f6a035eaa04d25ba96d4de33154af3

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.scahe.co.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    scaheavy@12345

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Loads dropped DLL 1 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Partial Shipment.exe
    "C:\Users\Admin\AppData\Local\Temp\Partial Shipment.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Users\Admin\AppData\Local\Temp\Partial Shipment.exe
      "C:\Users\Admin\AppData\Local\Temp\Partial Shipment.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1236

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsdA91C.tmp\qsfejdhbg.dll

    MD5

    93371f14aa45c8ac5c05fd7a9c4f9dfe

    SHA1

    fd58169fa5a575fa9b1257315f1b37dc1da6eee2

    SHA256

    363f25a56aee33f34a8bb4b48cee08f10a85c402514e768b8599e1757ec698f9

    SHA512

    44a75a1075f42686546f94c5c369e17ed0651f0bbbd2356cd238d39d9d8e00f572a73462b313bb6df6e1a5d54256468e81d97c1dc56d2cc5db12db6fe20af357

  • memory/1236-57-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1236-58-0x000000000040188B-mapping.dmp

  • memory/1236-60-0x00000000021A0000-0x00000000021D7000-memory.dmp

    Filesize

    220KB

  • memory/1236-63-0x0000000002161000-0x0000000002162000-memory.dmp

    Filesize

    4KB

  • memory/1236-64-0x0000000002162000-0x0000000002163000-memory.dmp

    Filesize

    4KB

  • memory/1236-62-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1236-65-0x0000000002163000-0x0000000002164000-memory.dmp

    Filesize

    4KB

  • memory/1236-66-0x0000000002164000-0x0000000002165000-memory.dmp

    Filesize

    4KB

  • memory/1888-55-0x0000000075981000-0x0000000075983000-memory.dmp

    Filesize

    8KB