General

  • Target

    New Order 1457.exe

  • Size

    579KB

  • Sample

    201109-hdf5ymm1ge

  • MD5

    4b605ed8c58926def87d9d23292d9212

  • SHA1

    21567642804cffb1861889f03c71650a02ff1ccc

  • SHA256

    9e31962b8b6fd5551b4fcc57ce233a204d72b4116bd5ca59dbb5d62dca1ec76e

  • SHA512

    8bf330e5241c1e8fdd0dc62a9370291575b12c29689b961a301edef750fcf8e83d0fe78431aa1f59aae0917e4f02f34c8d0f5705906b6f3a13c190bfa182a5b1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sridurgaagros.com
  • Port:
    587
  • Username:
    bestlog@sridurgaagros.com
  • Password:
    @Hammer75

Targets

    • Target

      New Order 1457.exe

    • Size

      579KB

    • MD5

      4b605ed8c58926def87d9d23292d9212

    • SHA1

      21567642804cffb1861889f03c71650a02ff1ccc

    • SHA256

      9e31962b8b6fd5551b4fcc57ce233a204d72b4116bd5ca59dbb5d62dca1ec76e

    • SHA512

      8bf330e5241c1e8fdd0dc62a9370291575b12c29689b961a301edef750fcf8e83d0fe78431aa1f59aae0917e4f02f34c8d0f5705906b6f3a13c190bfa182a5b1

    • AgentTesla

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

    • AgentTesla Payload

    • rezer0

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • Drops file in Drivers directory

    • 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 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

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Tasks