Overview

overview

10

Static

static

Emailer ? ...20.exe

windows7_x64

10

Emailer ? ...20.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    a96a475be3398490fb0cb4e92cb758e7c8bba0f866f8fec08349043c7ea8313c

  • Size

    1.9MB

  • Sample

    220521-nf7dvsggfq

  • MD5

    0d16e908f991fb5a9ce6dbbabe4d9aa6

  • SHA1

    7576d951e4d4ef00bc204581068d163b6d7adfe6

  • SHA256

    a96a475be3398490fb0cb4e92cb758e7c8bba0f866f8fec08349043c7ea8313c

  • SHA512

    a553f492938026c25cc738ef64a7530f50f9f8b5923c14535d86fd1c3c5cd94121f756021b2763cee71c5468cefca7a162e0d60242aab9e3bdb28fd707f0e32d

Score
10/10
massloggercollectionpersistencespywarestealerupx

Malware Config

Targets

    • Target

      Emailer ? Quarterly Tax Returns for April and March 2020.exe

    • Size

      2.3MB

    • MD5

      48beacc3662cc5784bb8bd925958f50b

    • SHA1

      c17b246dbbaa86c3e252b2978ce747456cfba241

    • SHA256

      6033acde8c4bde98b22ad4e45db8bc34123e794019b42750a3430ba97e33c804

    • SHA512

      68757d4af66fb544321cf25ec10695fd3d6e9bbc89b3bcdde27c3fde49f7c85998976a2ee6c32cbb18a3a6cac9c08d9c7e4444796a03364bf1803256226d9042

    Score
    10/10
    massloggercollectionpersistencespywarestealerupx

    • 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.

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • UPX packed file

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

      upx

    • Loads dropped DLL

    • Accesses Microsoft Outlook profiles

      collection

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Tasks