Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b6818c0e6769e59…

MALICIOUS

PDF

35.3 KB Created: 2021-07-06 12:22:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 115861d1c6af495cff9107a9927929ae SHA-1: 6b60712614cfeca3a69096a8aca5e09db851fad5 SHA-256: 8b6818c0e6769e597bc4423c7f8ef25a8b9b9526cb79c02a2a1f9212a6887cb6
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to what appears to be a malicious redirector infrastructure, disguised as "game hacks" or "free generators". The document body and heuristics indicate a lure to download or access content from these URLs. The primary malicious URL identified is http://netcdn.tw/app/479516143/how-to-get-minecraft-for-free-on-xbox-one-game-hack, which is flagged as a known malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 http://netcdn.tw/app/479516143/how-to-get-minecraft-for-free-on-xbox-one-game-hack In PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-hack-roblox-with-inspect-element-2021_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-only-username-needed_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-images_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-legit-no-survey2021_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/minecraft-bedrock-download_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-camera-not-activating-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/sript-roblox-hack_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/redline-download-roblox-hack_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-get-a-noclip-roblox-hack-working_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/barbie-free-online-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/optifine-pe_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/tiktok-free-iphone-12_GM835599320.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-hack-roblox-to-find-old-password_GM431946152.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_off00003453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3453 22440 bytes
SHA-256: 0d91483d4c36d57014622001f171b13e29bc79e68c5a5d5a939a5f2a887d216f
font_01_sfnt_off000065ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65ED 18756 bytes
SHA-256: d5ec30f65413d7db6993b9641d1e97629dc650179ebea3b1673208637b129ed3

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