General

  • Target

    1444f6bad86c2ff79a4c3faeb4bdaadeaa64d311126f90bc0919a63d38a5f713

  • Size

    395KB

  • Sample

    220521-bb9xzaegar

  • MD5

    c4276aead6620e7b9b0a7764177ac2cd

  • SHA1

    e23322f88a3593aaf35b3f37a80433fc5b620afe

  • SHA256

    1444f6bad86c2ff79a4c3faeb4bdaadeaa64d311126f90bc0919a63d38a5f713

  • SHA512

    5ad0c46744189c8e01550410ba1947ada8928985a9398d71be5f226c7e7fc8d31c649d1d9751fc631a5a69ed76ad2d19894c2bcbedb2944639de005c2956b45d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ImSCJnu6

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ImSCJnu6

Targets

    • Target

      Swift_098845.exe

    • Size

      445KB

    • MD5

      233b33cb478e8e8d1a75543f039024b8

    • SHA1

      8d72b67ea52e0927d03d00d168bd8065fd5211c2

    • SHA256

      dfca8cf09994229afec678b5c279d247e3e69c45f2878f816025b4933f3bc3b0

    • SHA512

      c2acf510e40a9efefdc7c6ca1bf8574258c343adda592412c97946c33bcd02541a82bd682253e7d348ffe2ac7254c2db01d37c07609f354068fa8608e711d95e

    • AgentTesla

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

    • AgentTesla Payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks