General

  • Target

    e7861511170c7f5a89f8f0cfaae07e18de6b631402a5176eba3328190a95e01e

  • Size

    380KB

  • Sample

    220521-n8wstsaack

  • MD5

    7fc963b7e6a1bf8b25b94db18227dcd6

  • SHA1

    c77ba5724d7c0c30a2d975324f0e8c63a7dd315c

  • SHA256

    e7861511170c7f5a89f8f0cfaae07e18de6b631402a5176eba3328190a95e01e

  • SHA512

    161e95759d404b04bb8faea9d7036e1532c9a72749b76dd2aa2c4bf8ea8c1688b92200c7dbfa0f5d968994fc56f175df538c1fc448a113886357134922613a9d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.saritatravels.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    sameerb%$321

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.saritatravels.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    sameerb%$321

Targets

    • Target

      1003829pdf.exe

    • Size

      437KB

    • MD5

      7bb2f96d596774d43bd8c6d1e7abd393

    • SHA1

      ff937b7668be6f7a3730518dc3c0da55c3319651

    • SHA256

      bd3217085dc8bc107e2b4937e89fee521d0f1489e35bbdbc0ee1e8be241f1773

    • SHA512

      1fa5581bd3938e7a5e2285d78b22ecdba5fac404811d9b1b745a1692b909d2a7641596e4f159d8ad1ee6a49c18b179aee95e0742579e6a6c8907fbc28ca21dc9

    • AgentTesla

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

    • AgentTesla Payload

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks