General
Target

a262a5a7fee574f02e945b10f56fb85946ec464af503c1cb26eb83e44afebcfe

Size

766KB

Sample

220521-phcspsaefk

Score
10/10
MD5

347c25bbd44b8ccaec8ac61fc7ab63f2

SHA1

5c15431d3e7d149e8af8f4c914bb7ea7352cb7bb

SHA256

a262a5a7fee574f02e945b10f56fb85946ec464af503c1cb26eb83e44afebcfe

SHA512

f6168ff4c2a74a999045dc6e782ee947fdb845358b8cf7603870288339873dbd09bb416c4839360514d3f45820a09a2de2519f67a844f40db426b4d4e3037fc9

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 2:32:54 PM MassLogger Started: 5/21/2022 2:32:43 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Enquiry.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\F95B724EDE\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 127.0.0.1 Location: United States Windows OS: Microsoft Windows 10 Pro64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 2:32:47 PM MassLogger Started: 5/21/2022 2:32:34 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Enquiry.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:
Targets
Target

Enquiry.exe

MD5

f71557e9155556d4f0ea0e03b307f11d

Filesize

797KB

Score
10/10
SHA1

a04a977026b26e1da0f43ba3fd6a1112df109db9

SHA256

1f4f66b6c25fcf9e510c93af0fb57942013de942175617a7b3a515709a44bed5

SHA512

8a575f1a4364f35d3187cb9eb117a7bfdbc4d152ce2a72bfbca4dc80f6007493109de56ec4e870a2486df30bd17904970f08c463119280df07b06f7d8c9596f7

Tags

Signatures

  • MassLogger

    Description

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

    Tags

  • MassLogger Main Payload

  • 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
  • Reads user/profile data of web browsers

    Description

    Infostealers often target stored browser data, which can include saved credentials etc.

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Accesses Microsoft Outlook profiles

    Tags

    TTPs

    Email Collection
  • 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
Command and Control
    Credential Access
    Defense Evasion
      Execution
        Exfiltration
          Impact
            Initial Access
              Lateral Movement
                Persistence
                Privilege Escalation
                  Tasks

                  static1

                  Score
                  N/A