Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce6d68de76273b4…

MALICIOUS

PDF

45.8 KB Created: 2021-05-16 01:30:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: fbdc5265fc154794d959b4ca9b1393b9 SHA-1: a631301a5e3a2c68e151028b0a65bad077ebb580 SHA-256: 5ce6d68de76273b4751f2c7c81f9ce1ded00e8c4d8f57e485a0e7e0da8550976
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector infrastructure, disguised as a 'game hack' generator. The document body and embedded URLs suggest a lure for users seeking in-game currency or cheats, likely leading to further malicious content or downloads. No scripts were extracted, but the presence of embedded URLs and the malicious redirector link strongly indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/coin-master-free-spins-hack-2021-game-hack In PDF document text
    • http://sv-nahetal.de/images/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/10-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-chip_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-game_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-admin-hack_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004893.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4893 25664 bytes
SHA-256: 679245d3405b8b09793eb6a997da070dd11b42c6b0f5097411550bc15eb312ad
font_01_sfnt_off0000837e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x837E 3820 bytes
SHA-256: fa56264fd04287589dcec548e2d31d7e94f0b33765a78886a499d244b69b69dd
font_02_sfnt_off00009019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9019 18456 bytes
SHA-256: a585848d53eaea1bda4e1de9ee00cb9d2c4270f04f2766c3858066f184342be0

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