Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b7dd88446afed49…

MALICIOUS

PDF

44.6 KB Created: 2021-05-14 05:57:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fcd9bcc1c8cab043f71566294b8ce128 SHA-1: 502d5ac75b84c1ca73e4febeb8e0847fa41bb123 SHA-256: 5b7dd88446afed49f7889caf73ee951d6bd0a612c767b38f179f5d58ee0d3bf4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and free currency. The document body and embedded URLs indicate a lure for users interested in such topics. The primary attack pattern involves directing users to potentially harmful websites, likely for further exploitation or credential harvesting.

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 https://netcdn.xyz/app/431946152/websites-for-robux-game-hack In PDF document text
    • http://solidcom.ch/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://solidcom.ch/images/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://solidcom.ch/images/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://solidcom.ch/images/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://solidcom.ch/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://solidcom.ch/images/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/coin-master-free-spins-ios_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://solidcom.ch/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://solidcom.ch/images/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://solidcom.ch/images/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://solidcom.ch/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://solidcom.ch/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://direct-link.netIn 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_off000047eb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47EB 28632 bytes
SHA-256: 0a2693be3cc6385a7f60b31c52508e1aa0ea630522e37ac919a36b1a3f2dc046
font_01_sfnt_off00008bb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BB1 18436 bytes
SHA-256: a0892a7c6a4df3f32c2c8d55016a82ae07dc296688f989f87a4165413345201d

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