General

  • Target

    6f5c8354926f49d2d86ec199c74ba98b8125b08c4e1ce73d4b71bcb0c160fdb6

  • Size

    390KB

  • Sample

    220521-c96hwafcd4

  • MD5

    fe4b72c2d49ad64bffad2100272fb9b1

  • SHA1

    daab08834a53da8369302f4a830a988cc04edf86

  • SHA256

    6f5c8354926f49d2d86ec199c74ba98b8125b08c4e1ce73d4b71bcb0c160fdb6

  • SHA512

    de893f548406b80830eaafe440b526568d3d4869a7f68970ddf7d64453c199dc0bb43d49df6cf03bdc814db1ed4055b0618b59080cb8ad374865542f3cc38b60

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.elittacop.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @eaSYuc8

Targets

    • Target

      Account information.exe

    • Size

      513KB

    • MD5

      d4f31ef1f0ee95b0974223a61c7b38d0

    • SHA1

      5fbd210c289efeddbf11e79ddf0707f42aadd6a3

    • SHA256

      17a6854b9d7de26d3c70352b1a5fe59aeb25abd75c57902950278569bac64f78

    • SHA512

      a4ee1525b95f8e5bcca9ed7389f28e7f037bc853b3d38f637ef5c826c10e0931a91c5abfbb63a326714e69b78a817643fc99246192774ab73f7d5731111ec50c

    • 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 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

Email Collection

1
T1114

Tasks