Malicious PDF — malware analysis report

Static analysis result for SHA-256 72561f5c6a704191…

MALICIOUS

PDF

42.0 KB Created: 2021-05-14 11:01:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 217df20d2e486d7500d97f614ab85589 SHA-1: ad1ba1095f9eaaa3f8c5d08985ffe1310d240126 SHA-256: 72561f5c6a704191b98bcc1d21cd6fad52f0565432be4fe5075e704bacff69d1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains links to a known malicious redirector infrastructure, specifically promoting 'free Robux hack' or 'game hack' lures. The document body and embedded URLs suggest a phishing attempt to lure users to malicious websites. The presence of multiple links to similar scam-related content indicates a coordinated effort to exploit user interest in free in-game items.

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/how-to-get-free-robux-hack-game-hack In PDF document text
    • http://www.pleiadisrl.it/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/simplysarc_GM479516143.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/hack-coin-master-spin-android_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_off000048ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48BA 25232 bytes
SHA-256: 8299e12b38e85e396d77ae3bd5d718fc805ab4f4f9bc051eeec2ddb67d051fb3
font_01_sfnt_off0000809f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809F 18680 bytes
SHA-256: 94830d128a2a842b7d907871b5b30233810e9b8beb569ce3f786f2ddb63eaed4

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