Analysis

  • max time kernel
    59s
  • max time network
    71s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    09-07-2020 14:34

General

  • Target

    order1.exe

  • Size

    673KB

  • MD5

    9645d5c96aad3d907d251b17174b8f7d

  • SHA1

    5f76321846fdbedbd45abdb8928cf9614f3eb666

  • SHA256

    fb257efdf56f0513106558a04bc49ef5d35059d9613dcf690f1d9bcb7edb452b

  • SHA512

    292735c2c523b070980de779fe03cbcaa71c937a8b8ba6f8908c07b4d92bb2d7de8328ef2b8c16e7f30c118d2019c91aeac9c7eff0eb2d91385db6d75ac3dcad

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cjcurrent.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    n,gmAXEv+C*Q

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\order1.exe
    "C:\Users\Admin\AppData\Local\Temp\order1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Users\Admin\AppData\Local\Temp\order1.exe
      "C:\Users\Admin\AppData\Local\Temp\order1.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1536

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

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1536-0-0x0000000000400000-0x00000000004A5000-memory.dmp
    Filesize

    660KB

  • memory/1536-1-0x00000000004A3A80-mapping.dmp
  • memory/1536-2-0x0000000000400000-0x00000000004A5000-memory.dmp
    Filesize

    660KB

  • memory/1536-3-0x0000000000400000-0x00000000004A5000-memory.dmp
    Filesize

    660KB

  • memory/1536-4-0x00000000003B0000-0x00000000003FC000-memory.dmp
    Filesize

    304KB

  • memory/1536-5-0x0000000001F72000-0x0000000001F73000-memory.dmp
    Filesize

    4KB

  • memory/1536-6-0x0000000000270000-0x00000000002B6000-memory.dmp
    Filesize

    280KB