Malicious PDF — malware analysis report

Static analysis result for SHA-256 f79b5374799f303e…

MALICIOUS

PDF

47.2 KB Created: 2021-05-11 03:19:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d5db615dc03458e36c0ad0c9cdede27e SHA-1: 36c7e9ad49221dd1be331c3ed45d3255dc9d978b SHA-256: f79b5374799f303ef79794f3b920445381453857a4c64a5217701100e15e6b3c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generators" or "game hacks" for popular games. The document body and embedded URLs suggest a lure for users seeking in-game currency or cheats, which is a common social engineering tactic. The presence of multiple redirector links indicates a high likelihood of leading users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8619

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/479516143/minecraft-linux-free-game-hack In PDF document text
    • http://arkivthy.dk/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/mcpe-free-download_GM479516143.pdfIn PDF document text
    • http://arkivthy.dk/images/static-moonactive_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-jackpot-madness-hack_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/hack-game-plus-com-coin-master_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000481c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x481C 25472 bytes
SHA-256: f90fad45a51736b875f522b18517db33ed071588a74610b7d1b1bb0ce129f89f
font_01_sfnt_off00008257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8257 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off00008cac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CAC 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off000096bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96BD 17916 bytes
SHA-256: 0b348397e82be555af1d528ddcedc25e065996eb02ebce8cb51620ec9a86be7a

Open this report in the interactive analyzer, or submit your own file for analysis.