General

  • Target

    58b223da1a35946090389dcfcb2a98f97aa3dc82fab22acc3214f4af7697573a

  • Size

    418KB

  • Sample

    220521-df2s9sffb8

  • MD5

    68cd3843d57b355658cc816f15589117

  • SHA1

    baa253dcdf3fd63db005f8b54866d419abe89504

  • SHA256

    58b223da1a35946090389dcfcb2a98f97aa3dc82fab22acc3214f4af7697573a

  • SHA512

    a986d6335116a4d81b0a92b1a417c10468b5d819e085815b94a2828043eeaedf6968583f2ae8991125d516249afcbcce370ab276cd21edc2bba66e6b957c549c

Malware Config

Extracted

Family

agenttesla

Credentials

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

Targets

    • Target

      Account details.exe

    • Size

      556KB

    • MD5

      605bf3ac2dc392025ee5ad634175c532

    • SHA1

      0b59ca04e25f42f814fa0ec20ceee0ee75b3044c

    • SHA256

      522611d9bc8c8a566e73a6c1126e01da0814748e422fce48805949c152408868

    • SHA512

      c555a860cb99d6ef283bec328b59f43ada20037395479329f61e8efcaec2fb406f719b9db69f45c9fbd8282d7783ee2bcf77db7b5f9566ee148afaf299f4d1f5

    • 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