General

  • Target

    Revised PO# 453924.exe

  • Size

    775KB

  • Sample

    200707-d6f4h4wcbx

  • MD5

    9943384ae07ee24b27111dcfa3ad3f28

  • SHA1

    d05c756801a33f30c8c8c54c2513590a7ae56e97

  • SHA256

    345f849a0cfc012229e71b4c53ff148b9cadaecd692f624f917e35dfed7f820b

  • SHA512

    6a1944d0807e2646a4909a16d0ab9fce1d4cc74a1d90e7485172600580a83157bed1941929808b2dbfabfa7e90007ea4624d61af406326682a3a1f9244863176

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.hk-gruop-sg.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    YERuFGp7

Targets

    • Target

      Revised PO# 453924.exe

    • Size

      775KB

    • MD5

      9943384ae07ee24b27111dcfa3ad3f28

    • SHA1

      d05c756801a33f30c8c8c54c2513590a7ae56e97

    • SHA256

      345f849a0cfc012229e71b4c53ff148b9cadaecd692f624f917e35dfed7f820b

    • SHA512

      6a1944d0807e2646a4909a16d0ab9fce1d4cc74a1d90e7485172600580a83157bed1941929808b2dbfabfa7e90007ea4624d61af406326682a3a1f9244863176

    • AgentTesla

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

    • UPX packed file

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

    • 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.

    • Adds Run entry to start application

    • Suspicious use of SetThreadContext

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

Tasks