Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a1f7e2b4b6f0f46…

MALICIOUS

PDF

46.5 KB Created: 2021-06-08 17:06:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 423aa306af0c8bd649eac669cf5eb6bb SHA-1: 663e1ea4d9d77d5953e31e8a9e40f2ff62f9e190 SHA-256: 2a1f7e2b4b6f0f462ce43bf80f6876099d8dbbc9b495bcee7d7ccb638097e564
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to known malicious redirectors, disguised as 'game hacks' or 'free generators'. The primary lure directs users to 'https://netcdn.tw/app/431946152/roblox-hack-character-game-hack', which is likely to host a further exploit or phishing content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/roblox-hack-character-game-hack In PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-hack-into-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-100-robux_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/como-meter-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-hack-at-roblox_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/copypasta-free-robux-meme_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/juego-de-roblox-hecho-por-un-hacker_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-roblox-accounts-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/admin-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-create-group-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/hack-stealing-robux_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-roblox-figures_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/roblox-console-hack-2021_GM431946152.pdfIn 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_004_off00005416.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5416 27548 bytes
SHA-256: 0c21a0fe6421b5bddee0351f183d9c0afb89296a12f3400261627e7e28633f87
font_01_sfnt_off000092f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92F2 18452 bytes
SHA-256: 87aeb933880c0b03fb4d272f319431db5a981149d0bcd78a4fe6e8247c3bab76

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