Malicious PDF — malware analysis report

Static analysis result for SHA-256 c22c416a60d88f9a…

MALICIOUS

PDF

41.5 KB Created: 2021-05-19 19:46:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 633429548829a642c864bf3da1a2dd61 SHA-1: da0d9a1ad8a0808d16247280baf9cab9795c3d17 SHA-256: c22c416a60d88f9a4d2d208884b1655d23756e1ee4501e54c03d141c4e1b1f02
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as 'free generators' or 'game hacks'. The document body and embedded URLs strongly suggest a lure for users interested in popular games, aiming to redirect them to potentially harmful content or phishing sites. The ML classifier also flagged this PDF with high confidence.

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-coins-on-coin-master-without-verification-game-hack In PDF document text
    • http://safwafurniture.com/images/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://safwafurniture.com/images/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://safwafurniture.com/images/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • http://safwafurniture.com/images/vip-roblox-free_GM431946152.pdfIn PDF document text
    • http://safwafurniture.com/images/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://safwafurniture.com/images/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://safwafurniture.com/images/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://safwafurniture.com/images/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://safwafurniture.com/images/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://safwafurniture.com/images/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://safwafurniture.com/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://safwafurniture.com/images/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://safwafurniture.com/images/coin-master-hack-apk-ios_GM406889139.pdfIn PDF document text
    • http://safwafurniture.com/images/coin-master-free-chip_GM406889139.pdfIn PDF document text
    • http://safwafurniture.com/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://safwafurniture.com/images/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://safwafurniture.com/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://safwafurniture.com/images/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://safwafurniture.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://safwafurniture.com/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47CE 24376 bytes
SHA-256: d07fe4ee43f28efd9f33f9193a562a77b692c718f59507ad26c554434f837508
font_01_sfnt_off00007f96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F96 18348 bytes
SHA-256: 68b7b6090c4e78ffeabfd8a702a632607944da3198f02fce58e875796570fee7

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