Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a51ab3bda56a32…

MALICIOUS

PDF

35.2 KB Created: 2021-06-29 13:13:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3d372f416d9a9be17d261fc09603276c SHA-1: a70831c8fe6cc699e384aae85582ce0b75ef8743 SHA-256: f7a51ab3bda56a3225fa898152222c39cdaadb53d90d6238b32f62f8fde74104
154 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 generators. The primary lure URL is http://netcdn.co/app/431946152/como-se-tiene-el-hack-para-traspasar-paredes-en-roblox-game-hack. This indicates a social engineering tactic to entice users into clicking malicious links, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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 http://netcdn.co/app/431946152/como-se-tiene-el-hack-para-traspasar-paredes-en-roblox-game-hack In PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/roblox-free-hack-download_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/tiktok-free-view-iphone-7-plus_GM835599320.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/free-catalog-stuff-roblox_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/roblox-kraoesp-free-skins_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/free-robux-lua-script_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/roblox-change-name-for-free_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/gamekitcom-free-800-robux-safe_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/cheats-and-codes-for-snow-shoveling-simulator-roblox-pc_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/roblox-paypal-hack_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/free-roblox-open-groups_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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
font_00_sfnt_off0000342c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x342C 22580 bytes
SHA-256: 13f5e8ae46dfbe77c7b883bad348f2bf9b03eab3bd8d4495e619555c5aef1ed2
font_01_sfnt_off00006643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6643 19540 bytes
SHA-256: a0fcf5ce5f3c8406787dedf82f09717f61fe5c2227cb0f3d5d51f05f132f6e8c

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