General

  • Target

    SKYHIGH SW -- 6TH SOA.cab

  • Size

    365KB

  • Sample

    210421-yh59zx9pja

  • MD5

    42c1fc3188f993589afe25eef9382a53

  • SHA1

    8ccc058c38bdab9f62faba6552fb5ca3b1c3fcd0

  • SHA256

    2df59e76e095243c70dbe7637549590a61d06865f965ff8ae675762e8e2b6a0a

  • SHA512

    4243880d142c47d0fbfe650e6d1600d1f18e0c3fa4263632f4b32608bf76580f2a6704a5525527dc5061abb5dac858897fa56984a6bf6c4173947a93542758f8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.hyshippingcn.com
  • Port:
    587
  • Username:
    plogs112@hyshippingcn.com
  • Password:
    e*u@qkS4

Targets

    • Target

      SKYHIGH SW -- 6TH SOA.exe

    • Size

      477KB

    • MD5

      0bbd4f88ffc0e2403dc677db55138705

    • SHA1

      96969cad9fb63258840273415b56524e7e0dd44e

    • SHA256

      4e03a6064d48718f91df9160b73f9a8cba2976bf516e6f97dc0ec1ddf2c05633

    • SHA512

      71972eb34f862212faf2c90da28526aa7af502e3b32453bc9b3c4fefb52ceb50823f4da4003003f3527f87d41bf357e8adf2c84d22b3394aeac1d078df620e15

    • AgentTesla

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

    • AgentTesla Payload

    • Nirsoft

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Tasks