General

  • Target

    RFQ20221123.doc

  • Size

    25KB

  • Sample

    221123-qxdh8afa84

  • MD5

    3f6c7ad16cf47199a9dfbe2944554ef4

  • SHA1

    eae5ac08cc4cb0da9561dde7e64d323e83b20f7b

  • SHA256

    c2d3f8d87feaec6e82fbce209dd28929b7567ba62713522dd9b0d149b09993a7

  • SHA512

    845be468e7a9ad292757627bda34efa636da5c45f4d28264c44d18efd82e78ea71b419873b93e6bec5e6893eccc3645e2cea7c34cda5eccf55cc26e4be19f3e0

  • SSDEEP

    768:TFx0XaIsnPRIa4fwJMEgyQapsGdcf4A/QyoVZIkvvE:Tf0Xvx3EMrb3G+AA/Q3wkHE

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      RFQ20221123.doc

    • Size

      25KB

    • MD5

      3f6c7ad16cf47199a9dfbe2944554ef4

    • SHA1

      eae5ac08cc4cb0da9561dde7e64d323e83b20f7b

    • SHA256

      c2d3f8d87feaec6e82fbce209dd28929b7567ba62713522dd9b0d149b09993a7

    • SHA512

      845be468e7a9ad292757627bda34efa636da5c45f4d28264c44d18efd82e78ea71b419873b93e6bec5e6893eccc3645e2cea7c34cda5eccf55cc26e4be19f3e0

    • SSDEEP

      768:TFx0XaIsnPRIa4fwJMEgyQapsGdcf4A/QyoVZIkvvE:Tf0Xvx3EMrb3G+AA/Q3wkHE

    • AgentTesla

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

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks