Malicious PDF — malware analysis report

Static analysis result for SHA-256 564dcf90ddb754a2…

MALICIOUS

PDF

35.5 KB Created: 2021-06-27 17:01:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ce38319f5542edab9abf848898b1dff5 SHA-1: d0c3cdf741ec48c62df6b22d36b6429468ebb3a5 SHA-256: 564dcf90ddb754a2bf97c1ae305f54dd5eaac46917820f25f19ae31d80dbe866
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirectors and potentially malicious domains, disguised as 'free generators' or 'game hacks' for popular games like Roblox. The presence of a download button lure further supports a malicious intent to trick users into clicking through to these sites. No scripts were extracted, but the embedded URLs and heuristic firings strongly indicate a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-hair-on-roblox-2021-game-hack In PDF document text
    • http://lib.stiesultanagung.ac.id//repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/easy-roblox-tix-hack_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/roblox-free-download-ps-vita_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/a-tab-that-can-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/roblox-robux-generator-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/hack-roblox-system48_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/roblox-all-gamepasses-for-free-script_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/114-hacks_GM479516143.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/hacks-for-counter-blox-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/optifine-pe_GM479516143.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/earn-free-robux-on-roblox_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
stream_002_off00003054.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3054 23144 bytes
SHA-256: aac4d09665a55a3e6845b969e05957e9de73b71fa5ac2869bc5be3d1dfd44139
font_01_sfnt_off00006494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6494 19440 bytes
SHA-256: 526724cde6bc47c97002da289a9f95b858f14f71f8bbba163578d631e24a590b

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