Analysis

  • max time kernel
    64s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    30-06-2020 05:35

General

  • Target

    OP#238S321Q.PDF.exe

  • Size

    702KB

  • MD5

    aea165a927ecc1f33075759ea4e9d5c8

  • SHA1

    1a6f549a5dcee8055c8d98a6cc1268b62fd235b3

  • SHA256

    ab0c0499cd88035d08c86f41c369fd6c06cca17eecbb5fb06af842fca3f4d227

  • SHA512

    2831194c053da71d10afb9ea36118aa1a65ede5ebfe24145dfa13842ceca593ff675a5829e1c202026b4030f7dfabca452c53749069821541e6d2708051f077d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sensar-light.com
  • Port:
    587
  • Username:
    5050@sensar-light.com
  • Password:
    505012345@@@@@

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 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\OP#238S321Q.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\OP#238S321Q.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Users\Admin\AppData\Local\Temp\OP#238S321Q.PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\OP#238S321Q.PDF.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1280

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/1280-0-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/1280-1-0x00000000004A2890-mapping.dmp
  • memory/1280-2-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/1280-3-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/1280-4-0x00000000004B0000-0x00000000004FC000-memory.dmp
    Filesize

    304KB

  • memory/1280-5-0x0000000001FC2000-0x0000000001FC3000-memory.dmp
    Filesize

    4KB

  • memory/1280-6-0x0000000000220000-0x0000000000266000-memory.dmp
    Filesize

    280KB