General

  • Target

    DHL.TRACKING.DETAILS.2021.doc

  • Size

    634KB

  • Sample

    210421-aan1d9nv9x

  • MD5

    73c142652fecd5c75b449de09f2e65d4

  • SHA1

    f1039be2cff5fd0c842039fe05271a9a5c7c318c

  • SHA256

    275e1e4ec6db7cfa0e893baedacfe37903a5133a0cd41d1551f86d51416465f4

  • SHA512

    ce18f9bd8a15de605e54b9853bca69d0d33007ce9aae2c9c8bf987dc31537c5edc65cd96df32d184f8132b9f63fe5cedefff78860f1674a9961e3e3a8c668751

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    web2.changeip.com
  • Port:
    587
  • Username:
    matiex4@chrismehat.com
  • Password:
    2*xaR!aKyovu

Targets

    • Target

      DHL.TRACKING.DETAILS.2021.doc

    • Size

      634KB

    • MD5

      73c142652fecd5c75b449de09f2e65d4

    • SHA1

      f1039be2cff5fd0c842039fe05271a9a5c7c318c

    • SHA256

      275e1e4ec6db7cfa0e893baedacfe37903a5133a0cd41d1551f86d51416465f4

    • SHA512

      ce18f9bd8a15de605e54b9853bca69d0d33007ce9aae2c9c8bf987dc31537c5edc65cd96df32d184f8132b9f63fe5cedefff78860f1674a9961e3e3a8c668751

    • AgentTesla

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

    • AgentTesla Payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Exploitation for Client Execution

1
T1203

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Collection

Data from Local System

3
T1005

Tasks