Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d0a55582c0ed63d…

MALICIOUS

PDF

44.1 KB Created: 2021-05-20 04:06:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: b8aca5d66c97f63606a330d0bcacdd55 SHA-1: 13d9331c089734fe50eb5c7e7469c2fab570f5fb SHA-256: 8d0a55582c0ed63d8be673b6c51e7f469f5e6a5d1d10652e04a5d61b71083a59
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, specifically advertising "free generator / game hack" lures. The document body and heuristics indicate a fake CAPTCHA or human verification prompt is displayed to trick users into interacting with these links. The primary goal appears to be directing users to malicious sites that likely host further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/free-robux-com-roblox-game-hack In PDF document text
    • https://fordogtrainers.mx:443/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-co_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/strucid-aimbot_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004af9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF9 27928 bytes
SHA-256: d7f8c115277da70f95312d437ec1a7e95849f67a313cbe7839218328031eb50c
font_01_sfnt_off00008a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A15 18348 bytes
SHA-256: 0a91f6cfdfc59c313b80ddaaf1db47d93b267e297f9a4be9f2abca10b90eba79

Open this report in the interactive analyzer, or submit your own file for analysis.