Overview

overview

10

Static

static

COTIZACIN_...__.exe

windows7_x64

10

COTIZACIN_...__.exe

windows10_x64

10

Sharing

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General

  • Target

    COTIZACIN_PDF______________________________________.exe

  • Size

    1.7MB

  • Sample

    201109-3fl3r77n9e

  • MD5

    f15739e5e71eba72fb64bf8079726140

  • SHA1

    4546c0efab75849299fd85e03ca7b0fb9185e15b

  • SHA256

    a647534f6daf848fa5a54b9bf08fda0c67933b9505a86b9cb8abcc655813687e

  • SHA512

    cb369a7636059769a6da0108591f6e64b4e16b6d731a86f96c4ca373b6e2df91feb3740d8606195c79c6e129d1819774b78013bd24c520dc3be24d730f4053eb

Score
10/10
massloggercoreentityrezer0spywarestealerupx

Malware Config

Targets

    • Target

      COTIZACIN_PDF______________________________________.exe

    • Size

      1.7MB

    • MD5

      f15739e5e71eba72fb64bf8079726140

    • SHA1

      4546c0efab75849299fd85e03ca7b0fb9185e15b

    • SHA256

      a647534f6daf848fa5a54b9bf08fda0c67933b9505a86b9cb8abcc655813687e

    • SHA512

      cb369a7636059769a6da0108591f6e64b4e16b6d731a86f96c4ca373b6e2df91feb3740d8606195c79c6e129d1819774b78013bd24c520dc3be24d730f4053eb

    Score
    10/10
    massloggercoreentityrezer0spywarestealerupx

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

      coreentity

    • MassLogger

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

      stealerspywaremasslogger

    • MassLogger log file

      Detects a log file produced by MassLogger.

    • rezer0

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

      rezer0

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spyware

    • 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

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks