Malicious PDF — malware analysis report

Static analysis result for SHA-256 1872bb370ace8a62…

MALICIOUS

PDF

45.4 KB Created: 2021-06-02 01:38:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7d7570a9d809a881d3ad7bbf7f6b30f7 SHA-1: 5cfa7b1d888576aaa3fbc1b7933ed12ad008ff22 SHA-256: 1872bb370ace8a62927ac2234f133625d555a81c675f9ee4f9c1fd28a94d5022
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks. The document body, though heavily obfuscated, contains embedded URLs that likely lead to further malicious content or downloads. The primary attack pattern involves tricking users into clicking links that redirect to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/how-to-hack-roblox-phantom-forces-game-hack In PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-free-exotics-in-roblox-assassin_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/kill-all-zombies-in-zombie-rush-script-hack-roblox_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/download-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-gun-locationb-roblox-jail-break_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/robux-co-hack_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-hack-copy-and-paste_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/cheate-engine-addres-for-robux_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-hack-games-on-roblox-rpg-rainbow-swords-rpg_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-download-of-roblox-for-pc_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-how-to-changre-your-name-to-something-free_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/pepsi-hacks-roblox-script-cbro_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-dinosaur-simulator-hack_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-free-suit-pants_GM431946152.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_004_off00005361.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5361 24672 bytes
SHA-256: 50bbbd18a697236b2afc0e41d2e4ba7a839976ba9b039e734dfd2a9ee4d74dd8
font_01_sfnt_off00008c57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C57 19196 bytes
SHA-256: 7c12bd77db04ca1459bc88aabd5083da4ad010db59c872a3f59c7adf7c4f2ff6

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