Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a456cb6e46f946b…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 16:01:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a653d11b8e5e4c2cb4d37bea73a1a831 SHA-1: 31109fae6ea2efb25f0ebce3d78999e45c30ee8c SHA-256: 6a456cb6e46f946b9631e2ba607a94fb542a17784dc662b2179d9c0fb292b453
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to websites offering game hacks and cheats, such as 'hack-coins-in-coin-master-game-hack'. These links are flagged as malicious redirectors, indicating a phishing or scam attempt. The document's content and the embedded URLs strongly suggest a lure to trick users into visiting potentially harmful sites.

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.tw/app/406889139/hack-coins-in-coin-master-game-hack In PDF document text
    • http://sttlets.education/senayan/repository/free-robux-no-cheats_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/azure-download-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/comment-avoir-des-robux-gratuit-sans-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/youtube-roblox-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/sgt-wilk-robux-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/cm-free-spins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/vido-roblox-ninja-legends-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/all-ways-to-use-cheat-engine-in-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-pro-roblox-island-royale-acc-and-passwords_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-spins-for-coin-master-2021_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_off00003100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3100 23452 bytes
SHA-256: 4de67bdfa8ccc4f5ff035a14c4edb0850f4f5fa015704521868c498ad92607dd
font_01_sfnt_off000065a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A3 18004 bytes
SHA-256: 97a583b0a3e69f2f5f434e768b16a64681d06eacdc187232e3f87ce02c39dd89

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