Analysis

  • max time kernel
    52s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    13-07-2020 22:05

General

  • Target

    Shipping Documents.exe

  • Size

    740KB

  • MD5

    43f7d11bdf7a14a065f4958e0ff1bb2d

  • SHA1

    5a5b0e2730fedf43cdfb13258000b5652d554ef2

  • SHA256

    9a4aa8d0acefa1f81a81440379ce5c4c76175c6a28d72ab61d372394646bab6b

  • SHA512

    5d66be14d4773236c49566a445bd569eee9846d6cd820df86e7a8bd6ebd84ba59f5bee8a1e5ee74347cea3181ec5100055e20761275c241c0f43a83ff8a1ff3d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    Seeman30@yandex.com
  • Password:
    ikem123456789

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Shipping Documents.exe
    "C:\Users\Admin\AppData\Local\Temp\Shipping Documents.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Users\Admin\AppData\Local\Temp\Shipping Documents.exe
      "C:\Users\Admin\AppData\Local\Temp\Shipping Documents.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1256
    • C:\Users\Admin\AppData\Local\Temp\Shipping Documents.exe
      "C:\Users\Admin\AppData\Local\Temp\Shipping Documents.exe" 2 1256 74365
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1116

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1116-4-0x0000000000000000-mapping.dmp
  • memory/1256-0-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/1256-2-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/1256-3-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/1256-1-0x00000000004A2910-mapping.dmp
  • memory/1256-5-0x00000000002D0000-0x000000000031C000-memory.dmp
    Filesize

    304KB

  • memory/1256-6-0x0000000001E82000-0x0000000001E83000-memory.dmp
    Filesize

    4KB

  • memory/1256-7-0x0000000000230000-0x0000000000276000-memory.dmp
    Filesize

    280KB