623e7e4cc3035fc745bf34c07c5fffc4258fac2e4cd2c9f7d4ba2045e24371a0

General
Target

623e7e4cc3035fc745bf34c07c5fffc4258fac2e4cd2c9f7d4ba2045e24371a0

Size

361KB

Sample

220521-pwy8vsgah9

Score
10 /10
MD5

882082f3dd2804e3d312ddd3d40d8c3e

SHA1

9791b1459e264789365865168c2070599246c0bb

SHA256

623e7e4cc3035fc745bf34c07c5fffc4258fac2e4cd2c9f7d4ba2045e24371a0

SHA512

a6db1b26057de4cf5e2e4abbe7595c94ff0def06f8c5571ce11caf26739ecddad9ed4b5a27f5e3083821143788f4bb62eaefca7955bdc3c10535ca42742f67c2

Malware Config
Targets
Target

TNT E-Invoice Cosignment Delivery Notification_pdf.exe

MD5

22e5a3e8fb401981cfdb4bc0c9235e7d

Filesize

1MB

Score
10/10
SHA1

5a371efcb5183f96f96082b5fefec1e05b84c21f

SHA256

b0dd472a02ed67fe15e20e2faa6167d8c1e9d54c9f0abc95a255197bbf0c0264

SHA512

d787f86a0ef8da1f29ea3accc3871fd3e78d9f09dccafe58cf13dbbc2a5a19cdfd22001e0417301b9401f6bea79d68c40119aba5a29db9e931ea98e2d294dba3

Tags

Signatures

  • Matiex

    Description

    Matiex is a keylogger and infostealer first seen in July 2020.

    Tags

  • Matiex Main Payload

  • Modifies WinLogon for persistence

    Tags

    TTPs

    Winlogon Helper DLLModify Registry
  • Drops startup file

  • Accesses Microsoft Outlook profiles

    Tags

    TTPs

    Email Collection
  • Adds Run key to start application

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry
  • Looks up external IP address via web service

    Description

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Collection
Command and Control
    Credential Access
      Defense Evasion
      Discovery
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Privilege Escalation