General

  • Target

    SALES CONTRACT.exe

  • Size

    952KB

  • Sample

    210119-qjx4wk8f26

  • MD5

    27db7eb8d0628a6ed9d6a3e496935ccf

  • SHA1

    d068b64bb3f56a96662def8147df8b6dec218f76

  • SHA256

    5093cdfd713f5f3d728893144130b191de136c530b19f84f7c62fa14182c39ee

  • SHA512

    85597a2cc041cb3d8cb0a0eb96f6f7a0ab82ae43da31bdbc6dc317b349f34ec69aa75b4bcd9bf9fb523c07b8f464e9a916ab399e19fc09fcdd61df435d21d217

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    cgcropglobe.website
  • Port:
    587
  • Username:
    info1@cgcropglobe.website
  • Password:
    HCBo3_tl-nKP96

Targets

    • Target

      SALES CONTRACT.exe

    • Size

      952KB

    • MD5

      27db7eb8d0628a6ed9d6a3e496935ccf

    • SHA1

      d068b64bb3f56a96662def8147df8b6dec218f76

    • SHA256

      5093cdfd713f5f3d728893144130b191de136c530b19f84f7c62fa14182c39ee

    • SHA512

      85597a2cc041cb3d8cb0a0eb96f6f7a0ab82ae43da31bdbc6dc317b349f34ec69aa75b4bcd9bf9fb523c07b8f464e9a916ab399e19fc09fcdd61df435d21d217

    • 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.

    • 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

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