General

  • Target

    4c69f7c893b04cdcde779cc8debd644802eb9495831b18abe8d3c94d02c5668b

  • Size

    1.6MB

  • Sample

    220520-q2zx1seec9

  • MD5

    0f2b7ae67acb62f37102e881696895e7

  • SHA1

    d5411019c664af4c386d13e99576534f0b0f9f7d

  • SHA256

    4c69f7c893b04cdcde779cc8debd644802eb9495831b18abe8d3c94d02c5668b

  • SHA512

    38594814f18480ba1fec624d5e26e56bf9b521f6848783b532d45f4233829298847c7ae9ef4e4edffadfd54c88ffa25c39344045b48af9c19b6c62bea3d2465c

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.5.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 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: 5/20/2022 4:25:59 PM MassLogger Started: 5/20/2022 4:25:38 PM Interval: 1 hour MassLogger Process: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\EEB932C954\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.5.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/20/2022 4:25:27 PM MassLogger Started: 5/20/2022 4:25:19 PM Interval: 1 hour MassLogger Process: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Targets

    • Target

      INVOICE09090.exe

    • Size

      2.0MB

    • MD5

      014c0a6998bc074852e5a1cb8262e7a2

    • SHA1

      bdc027bbb2bff2c8c1effbd2305154e6ec232eae

    • SHA256

      2c7989e0df0c62a6c561a72a5605bfd55d4006b84878b05dd50d22ce16776d7a

    • SHA512

      ac869275bf85429fe56f496866f27a25520c986790ac9d978ea5aa1f2dc81d365db9c9abc8961efce3fc326b70b3e3984900c2e4464171875ea9bba48310e3d5

    • MassLogger

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

    • MassLogger Main Payload

    • MassLogger log file

      Detects a log file produced by MassLogger.

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks