General

  • Target

    New_Order_PO#960780_MT_Quote.gz

  • Size

    391KB

  • Sample

    211018-3w27eafhhq

  • MD5

    cff8a1f56810522a0cb1dcdd6261cc3d

  • SHA1

    04c76e90d5a080e366b2ff4865b24d8a7818e798

  • SHA256

    40e793c4c02b4a76683bbeb9f7a82ad992ba442ecb275629090a2d49fcde4a90

  • SHA512

    0aa5fc833e807392cab5b080e57eee49f961780ffbe3db3a12291fdaeb4124e6cfaf96ff3109f17cb23772ac824e0d3aaf147b1cf738d6a74cd07269c301e422

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.karanex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Oi&-tmhj@d5v

Targets

    • Target

      New_Order_PO#960780_MT_Quote.exe

    • Size

      473KB

    • MD5

      03080711e2952cde2c9fd19d133a939e

    • SHA1

      3237ca2d142a3c4a0e87bca096bcca738d9601a2

    • SHA256

      3b2c7ef4cf7315a1bf510c073a7bd50bbc16a371b5e624479a2333b840f72e93

    • SHA512

      59949884887c288ca7e61ec2b894ca5d1a4125105b83ef16264f32fec1ded5a1d7053d55195df886c4857dbd84e8f2268337348d9ed9b5ccf9c75685c023ab95

    • 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.

    • Accesses Microsoft Outlook profiles

    • Maps connected drives based on registry

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks