Malicious PDF — malware analysis report

Static analysis result for SHA-256 cac01a8b769ff2ca…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 14:26:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ba607d99451e6513d1804faa231b406d SHA-1: 064a6429636e57aa5300e4254aaa6d28cac4db1a SHA-256: cac01a8b769ff2ca309a9eda9fc21172894b98ba5c090986ab0c956c81b0b45f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and sites offering game hacks and cheats, such as 'hack-para-coin-master-sin-verification-game-hack'. The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting these sites, likely for further malware delivery or credential harvesting. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/406889139/hack-para-coin-master-sin-verification-game-hack In PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-free-robux-map_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/rbxgg-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-roblox-noclip-exploit_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-hack-executor-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/robux-miner_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-builders-club-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-free-robux-on-computer-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/can-you-earn-robux-for-free_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-but_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/funbloxxyz-free-robux_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
font_00_sfnt_off000033a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33A3 22672 bytes
SHA-256: 0b65a0ca765fe7fa91b5371766f4eaeca76b0033700d84c4c83937e9896d1066
font_01_sfnt_off00006626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6626 18292 bytes
SHA-256: dc21848a9572f0bb2df207bbe20889b0cdba20355121a259901570b765d7c4a5

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