General

  • Target

    doc20219119979791.r00

  • Size

    15KB

  • Sample

    211109-xyq92afgd9

  • MD5

    6f4901dd7316b533fcc1f78f1fde74a0

  • SHA1

    670b056a3e06b1c47e84fb5625584b84a4072cb6

  • SHA256

    1bb0dbfc5f3b6b1548976ce6b675b1333305ffd33a002cedbd0b7d1d72377913

  • SHA512

    3c53709aae84be0604466be074db6cc456f52da519558154a1e9f49ee355833dc098cc6c0ea8a395362a1757c91cb7b1cd3ad49b0e5c6b9f0570b15e7634c035

Malware Config

Targets

    • Target

      doc20219119979791.exe

    • Size

      28KB

    • MD5

      848514d3293e05eef636c27ee777fe29

    • SHA1

      0386b781ab84c9309d24eb15ef68628363a21fb0

    • SHA256

      827adb7149301b3ba792a95aabfae0457354e38f87f6dd2da629a1cfe5c30801

    • SHA512

      d6764b887d64874f98b0be4a79e18a7b91cc6e8e1a8ead0c00d11e200a1297d711d3f1af64138a50d7d0be615c61923d48cbb42d6e6e9ba8d36b26fd32d4bd3c

    • Modifies Windows Defender Real-time Protection settings

    • Turns off Windows Defender SpyNet reporting

    • Windows security bypass

    • Nirsoft

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

4
T1089

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks