General

  • Target

    Order List.exe

  • Size

    41KB

  • Sample

    210421-p24k5ac9jj

  • MD5

    2400fe7dc0c57c484ee2f27c3ecfa448

  • SHA1

    a91970dd408d95ed439bed31d9bddf9357199716

  • SHA256

    b337aa4c1b6e496feccad1915924918663620a60962e4200e8704377ae726a21

  • SHA512

    fa4d76516b5c0c97a5fe7a2b88c81cca1a579624dfc5cb9c7c16fb36bb0ca870657bbd2108309f999a4c21cbad0565e16a7c4a9a72915e4b97c837824e7dc557

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    lags@d0llartree.com
  • Password:
    mmm777

Targets

    • Target

      Order List.exe

    • Size

      41KB

    • MD5

      2400fe7dc0c57c484ee2f27c3ecfa448

    • SHA1

      a91970dd408d95ed439bed31d9bddf9357199716

    • SHA256

      b337aa4c1b6e496feccad1915924918663620a60962e4200e8704377ae726a21

    • SHA512

      fa4d76516b5c0c97a5fe7a2b88c81cca1a579624dfc5cb9c7c16fb36bb0ca870657bbd2108309f999a4c21cbad0565e16a7c4a9a72915e4b97c837824e7dc557

    • AgentTesla

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

    • Windows security bypass

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Windows security modification

    • Adds Run key to start application

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Disabling Security Tools

2
T1089

Modify Registry

4
T1112

Virtualization/Sandbox Evasion

2
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Tasks