Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cfd5c1ac818293e…

MALICIOUS

PDF

42.7 KB Created: 2021-05-12 02:08:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 500c233b49688059bd7eafefb84f5ae0 SHA-1: 25ef4bc637f645dac03bcb3b8f1e60f897399e70 SHA-256: 6cfd5c1ac818293ee9ae85b13a1d7160bc58b5f625f462756a86dd5308cde5f4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically targeting users interested in game hacks and free currency. The heuristic firings indicate a deliberate attempt to lure users to potentially harmful sites. While no scripts were explicitly extracted, the nature of the links and the document's content suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • 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.
  • 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/roblox-person-game-hack In PDF document text
    • http://s-punkt-objects.de/images/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • http://s-punkt-objects.de/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/roblox-rules_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-roblox-intros_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-free-coins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/roblox-com-www_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4887 26716 bytes
SHA-256: 1e80d6dee22552750f1a7bcf03f49722b4912b3c3a932cbe1d77487b86e178d2
font_01_sfnt_off0000859f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x859F 17936 bytes
SHA-256: f4f04d29b57f2a72625fc9e352393071ee42f2c511d00c6ae5a127c0a3ffd084

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