Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad1fe508df681dc…

MALICIOUS

PDF

41.6 KB Created: 2021-05-17 03:45:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 399c5b6b18cce77a0a42f02eb25caf1b SHA-1: abfa6aa83bfd0d159fee3b270923e9078a2107e1 SHA-256: 2ad1fe508df681dca34931e3efe59d9d0f7caccd81f6c7e80b0cabb2bae57370
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector, under the guise of providing game hacks and free currency. The heuristic firings indicate that these links are intended to lure users to potentially harmful content. No scripts were extracted, but the embedded URLs and the nature of the lures suggest a phishing or malware distribution 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/406889139/how-to-get-free-snacks-in-coin-master-game-hack In PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/easy-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-free-spins-apk-2021_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-new-link-free-spin_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/minecraft-free-download-pc_GM479516143.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_003_off00004b34.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B34 23704 bytes
SHA-256: 97a629d3374bf26e5a95634873e92ed32289e9797884c7c9f24591c2cf6b6d1f
font_01_sfnt_off00008109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8109 18044 bytes
SHA-256: afdb62a7dd2f220a912b3040110964a0dfec84e69cae224ad3fedfc94188d243

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