Malicious PDF — malware analysis report

Static analysis result for SHA-256 175994dd5e2b9160…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 13:31:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b7fe131505da3664a7b1e5276508090e SHA-1: 7a223d48f855f13daf88381ed71f6d02a3451dc5 SHA-256: 175994dd5e2b9160beccda4e2959db75d2447f847d0536625eabc06f506508e4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this by referencing game hacks and generators. While no scripts were extracted, the primary attack vector appears to be directing users to a malicious URL via a deceptive link within the document.

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/free-black-wings-roblox-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-hack-in-robux-no-virus_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-do-u-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-hack-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/redline-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/ww-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-secret-code_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-a-free-monster-truck-in-roblox-jailbreak_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
font_00_sfnt_off00002f88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F88 22668 bytes
SHA-256: c932818b3f848d1eedb3d048f1865aff6eabb69366b3cb0ae9eb5648c50edda7
font_01_sfnt_off00006222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6222 19136 bytes
SHA-256: 23160fa8437411c134f20fa402c31c957633582d3d9c03643cb53975151bd03d

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