Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d583629689fe87a…

MALICIOUS

PDF

36.6 KB Created: 2021-07-05 14:19:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f6f2be15747300958ef7e01d0567e5dd SHA-1: a10b31f2837787d0bd3b5c373910916c9606ce23 SHA-256: 1d583629689fe87abc888f0eecf6463930a25a207297d9675b298887d6305c2f
160 Risk Score

Malware Insights

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

This PDF document employs a lure of free game hacks and generators to entice users into clicking embedded links. These links redirect to malicious infrastructure, which in turn serves further PDF files, indicating a multi-stage download or redirection chain. The ML classifier strongly flagged this sample as malicious, supporting the observed redirection and lure techniques.

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.tw/app/479516143/download-minecraft-free-hiapphere-game-hack In PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-2021-robux-kazokyt-game_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/play-games-for-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-real-no-survey_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/infinite-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-tell-roblox-you-got-hacked_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/mcpe-com_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hack-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-a-free-private-server-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/get-free-robux-generator-parts-pokemon-silver_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/tix-factory-tycoon-paquet-tix-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-cheat-robux-download-apk_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-roblox-game-creation-code_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-hack-no-verification-ios_GM406889139.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_off00003644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3644 23300 bytes
SHA-256: ed41a4acf60934666a7f6a6b1262b925d79dc33ddcf77ad642bf0dff195388d5
font_01_sfnt_off00006ae8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE8 18920 bytes
SHA-256: f5e6d66979b5c86b52eb520d87716e03a090c5e5ddb9498a449d0afa8dd17a93

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