General

  • Target

    Rev Cont CD20(3) SC# IDM392(20) SC# - DRB.exe

  • Size

    598KB

  • Sample

    200707-ez5a84tb4e

  • MD5

    21d3d4a548696aac6bbe682a8e745213

  • SHA1

    58ead3fe064635fe331fb5d6788a9b27f2ddcf74

  • SHA256

    1a74ccf719aa43c97835fd2bd03de4c85d4d4eaad56482b8d4d70e3f8beac769

  • SHA512

    63ec84ab4754a26659f83e26e38921074f19a38a7d23e41d15d4f159c5cf2d37395e946b57c4a4462abfea44f78cc2dc0155adbece076e40ce445f0ecf0de38b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    retailevaluations.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Jesusislord10

Targets

    • Target

      Rev Cont CD20(3) SC# IDM392(20) SC# - DRB.exe

    • Size

      598KB

    • MD5

      21d3d4a548696aac6bbe682a8e745213

    • SHA1

      58ead3fe064635fe331fb5d6788a9b27f2ddcf74

    • SHA256

      1a74ccf719aa43c97835fd2bd03de4c85d4d4eaad56482b8d4d70e3f8beac769

    • SHA512

      63ec84ab4754a26659f83e26e38921074f19a38a7d23e41d15d4f159c5cf2d37395e946b57c4a4462abfea44f78cc2dc0155adbece076e40ce445f0ecf0de38b

    • AgentTesla

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

    • 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.

    • Maps connected drives based on registry

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Tasks