General

  • Target

    2070d6db94c933ec9a30fc2c2fa0021518a254019b13bc5d4ead5cdb1a75beb0

  • Size

    1.4MB

  • Sample

    220521-dwp5eagdf9

  • MD5

    02042808dd0ca0d5a049fac00f9b2bb6

  • SHA1

    1d9a2db6ceb298860d8728a9266711d0e8d72222

  • SHA256

    2070d6db94c933ec9a30fc2c2fa0021518a254019b13bc5d4ead5cdb1a75beb0

  • SHA512

    4642a1c753e14ab0ffaeee3d7523d51ec3772dd502724a0ebd382fa1b0c430775ceecb58d1f42a46cf2c0bcb3b9c9d9939dcda02c40b143c162dbc5e1a215804

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\3B8E3C2477\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 7:01:02 AM MassLogger Started: 5/21/2022 7:00:40 AM Interval: 5 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO_01456.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\8236ADF044\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 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 7:02:22 AM MassLogger Started: 5/21/2022 7:01:40 AM Interval: 5 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO_01456.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Targets

    • Target

      PO_01456.EXE

    • Size

      892KB

    • MD5

      eaa8776e7fe85e8f5f8e240a94ff0eaf

    • SHA1

      a83f3d2bf7cc0fe2e47357b3c5588572a0588f78

    • SHA256

      f7ecd0e638cbffb3b985691c57451ea93845e8f16e4003d0f91ba3f02eb54c03

    • SHA512

      c26877bf89520fd98aabf87c926352dc83986cfd1c0dde9740d326642579e19422c970b4f1b634cf5a2af584050af53ee4e3ab0c0db5ea1bd96c73f3f5e6c150

    • 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.

    • ReZer0 packer

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

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

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

    • 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