General

  • Target

    e38b85c6f1356d2656a11ff9dff7188da1e9ce7f8573c1154198d46eed789ab2

  • Size

    656KB

  • Sample

    220521-cd578sdga4

  • MD5

    b28e8135962906f165c96248f267e025

  • SHA1

    249482cff73af882da526ebf81731e5855834543

  • SHA256

    e38b85c6f1356d2656a11ff9dff7188da1e9ce7f8573c1154198d46eed789ab2

  • SHA512

    390d64e169d171f6e749e74a2e5c9fd83a88733624428c36603183d6c551269a5b7ca6ec70126b661cc7003195737e85e87673fac498a4303cad90e572c975d8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    originlogsresultbox.xyz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    oluwarugged99

Targets

    • Target

      LPO#29 ADNEC.exe

    • Size

      695KB

    • MD5

      531d2bd0af99ba6b00856a661ea50966

    • SHA1

      aa6527332cbda8e367451a1dbda5f854f892c48a

    • SHA256

      c0fd1a0101be9108bcf4f1c0e2783267f8428de78194205e2957fe8d0b6c7b5b

    • SHA512

      5c9a4396cb2d31de81ae71e59e9c3f8092e15021e6679fc8b57f2c52de0539b1eae54ab7a3986a62213f5e8026846f4a7e578d4a24b6033e1f390aac71345e42

    • 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.

    • 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

    • 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

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

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks