General

  • Target

    DHL Shipment Doc6532291931_pdf.exe

  • Size

    764KB

  • Sample

    221001-jd4sqsgfen

  • MD5

    e9e919b5847ad60ac37a39a99c4422b7

  • SHA1

    2d6f28ad5c79f6060817f31db3add4871698a470

  • SHA256

    1030d96c7949cfdac369c74f47822f858039b725f49de6f753349fabf8fa7754

  • SHA512

    0178ba4f07c5f89466c848496de7b7a172607628ebb8ae363c54e6374a0fc4e6a507ac4a6aeacbe7c8e9aea042f607f2918bdbc94d6443e421be84123857b823

  • SSDEEP

    12288:YLCLa4/wJC8tffl7ogSZ6XZTmJ/V/eeJUROmJlxH2UmGOd/aw:aCLaQvsl7c8h9eo7lF2UU

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.hegelman.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    B!c)MGg9

Targets

    • Target

      DHL Shipment Doc6532291931_pdf.exe

    • Size

      764KB

    • MD5

      e9e919b5847ad60ac37a39a99c4422b7

    • SHA1

      2d6f28ad5c79f6060817f31db3add4871698a470

    • SHA256

      1030d96c7949cfdac369c74f47822f858039b725f49de6f753349fabf8fa7754

    • SHA512

      0178ba4f07c5f89466c848496de7b7a172607628ebb8ae363c54e6374a0fc4e6a507ac4a6aeacbe7c8e9aea042f607f2918bdbc94d6443e421be84123857b823

    • SSDEEP

      12288:YLCLa4/wJC8tffl7ogSZ6XZTmJ/V/eeJUROmJlxH2UmGOd/aw:aCLaQvsl7c8h9eo7lF2UU

    • AgentTesla

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

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • Drops file in Drivers directory

    • 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

    • 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

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