Malicious PDF — malware analysis report

Static analysis result for SHA-256 16671385ab553968…

MALICIOUS

PDF

42.0 KB Created: 2021-05-17 09:40:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b9a20d5c5fab34615d88f94a23225d69 SHA-1: ad6be66c61937fdf57d15109222f792f997c1939 SHA-256: 16671385ab553968149f7b2b2faeea752b350c2676eb7458bffe05b4370f6d59
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as 'free game hacks'. The document body and embedded links promote these lures, aiming to trick users into visiting potentially harmful websites. No scripts were extracted, but the primary attack vector is the malicious redirection via embedded links.

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/free-coin-master-hacks-game-hack In PDF document text
    • http://baah.ca/images/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/coin-master-attack-hack-apk_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/getrobux-info_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://baah.ca/images/coin-master-download-hack_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/coin-master-free-pet-snacks_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/latest-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/coin-master-free-spins-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
stream_003_off00004719.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4719 28832 bytes
SHA-256: 6a153ec8d87c9d92c786a6e9752b185d47a6b49c5c96707cf3afa00987bfb994
font_01_sfnt_off00008348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8348 17880 bytes
SHA-256: e9d83edb2e1b044691ef11a4057c4d6cc11a4a50971021398c2c06fbe5537458

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