General
Target

35427be7bfbf3eed5c87a1567c0ede26d41c7653c3bb06e28c65f28d3263a5e4

Size

719KB

Sample

220521-pmt8jsffc7

Score
10/10
MD5

affd2f6d147c7250f93a0e2f80e00fa9

SHA1

3ecf73be3b7ec7a4ee4e46d5d181407f55251621

SHA256

35427be7bfbf3eed5c87a1567c0ede26d41c7653c3bb06e28c65f28d3263a5e4

SHA512

1cf8b63c192c821aa80aeead3148b4d7961128c854b908dabad15170d0609d6d04b6d235806e68dc26bd2573d327def3a6580587e0c9bc51a2fdbce2253ed0e5

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\79FE0CC911\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.4.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 7 Ultimate 64bit CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 1:09:10 PM MassLogger Started: 5/21/2022 1:09:03 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Quotation_Sheet_PO_including FOB_MOQ.PDF.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:
Targets
Target

Quotation_Sheet_PO_including FOB_MOQ.PDF.exe

MD5

a59a17e0750535499b455d7e2bf4b4ff

Filesize

756KB

Score
10/10
SHA1

d659c6f80171c2142aa0b9f0352205ae6a79ca4d

SHA256

c2be817a60ed0f80dc7f6e3e5eafc3db7a7a170e1df0015e2189cd9daecec6c8

SHA512

83bab7d199df6dadc8ca1d8c3cb38bc8cf466309d25ee92b3579ea30eac012154b20c9193367f09441619c0e08a0134123cf89d97972a43aaac42a9bff212354

Tags

Signatures

  • MassLogger

    Description

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    Tags

  • MassLogger log file

    Description

    Detects a log file produced by MassLogger.

  • ReZer0 packer

    Description

    Detects ReZer0, a packer with multiple versions used in various campaigns.

    Tags

  • Checks computer location settings

    Description

    Looks up country code configured in the registry, likely geofence.

    TTPs

    Query RegistrySystem Information Discovery
  • 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
          Execution
            Exfiltration
              Impact
                Initial Access
                  Lateral Movement
                    Persistence
                    Privilege Escalation
                      Tasks

                      static1

                      Score
                      N/A

                      behavioral2

                      Score
                      7/10