Malicious PDF — malware analysis report

Static analysis result for SHA-256 43bdd585da50a966…

MALICIOUS

PDF

35.4 KB Created: 2021-06-27 20:24:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4a95c254d5c4d5f3f332d0b1a4e4f17a SHA-1: dc25c255e723306dcee436a2ac7984257d7d2207 SHA-256: 43bdd585da50a9660bd9870e07ecb9ee5c530621e49d99988c23f04f5a49a2b4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a 'game hack' or 'free currency' generator. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a potential for further malicious activity, such as downloading additional payloads or redirecting to credential harvesting pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/redeem-cards-for-free-robux-game-hack In PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-blox-piece-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-cript-tamper-monkey_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-enter-a-cheats-code-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/febuary-2021-roblox-hacking-client_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-no-offer-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-fast-and-easy-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-hack-jailbreak-money_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hacks-on-roblox-to-change-ur-look_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/master-coins-free_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-game-pack-with-google-play-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/dayz-roblox-cheats-codes_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

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_off00003157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3157 23000 bytes
SHA-256: 63f704f13f5ab84c468526f440695a4a4b663f98f17f05bdca0acf4228752c45
font_01_sfnt_off00006505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6505 19152 bytes
SHA-256: e1725bab30a5e7a4c2bf5745b0b9e2a3c92b942f50c945d767bc384dad3f4760

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