Malicious PDF — malware analysis report

Static analysis result for SHA-256 10594c5109440cd6…

MALICIOUS

PDF

48.3 KB Created: 2021-06-09 07:57:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 92e7f5ff27442020dc9e61cf0e37368e SHA-1: 372a56baf4d08707be6fa9eb8eefa79a1396661d SHA-256: 10594c5109440cd61f317af5eb7be26252cae3ce5309d9e4864c12742d76b931
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as offers for free game currency or hacks. The primary redirect URL is https://netcdn.tw/app/431946152/bloxburg-com-free-robux-game-hack, which likely leads to a phishing page or a malware download. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/bloxburg-com-free-robux-game-hack In PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-to-get-bloxburg-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-tix-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/roblox-passwort-hacken_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-roblox-accounts-dump_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-doge-head-roblox_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-to-hack-roblox-database_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/diary-of-a-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/codes-free-robux-on-bloxland-youtube_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/roblox-dynamic-ship-simulator-hack_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-to-hack-digimon-aurity-roblox_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-to-get-wings-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/best-free-hoodie-on-roblox_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/roblox-player-radar-script-hack_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/gladiator-simulator-roblox-hacks_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004ffd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FFD 26320 bytes
SHA-256: 8658785a0ea048537a96c1e597de7a742b45ce7a1b5937bd560891204a6efb1b
font_01_sfnt_off00008c07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C07 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9919 18636 bytes
SHA-256: 3fb906bc4a5285c884cf0532a0bc4d1fe0283943ee8fa4cb746fa8fac7117b49

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