Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d606c879d45f519…

MALICIOUS

PDF

36.0 KB Created: 2021-06-25 00:23:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 66a81337acab7f18eff7d37b2b1ba391 SHA-1: af1d050098b1a484054ad59dc19715e5f3344060 SHA-256: 0d606c879d45f5196d5521e4f9341d92a5edcabec49234c6841bcb43ea469a8a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and generators, specifically mentioning Roblox and Coin Master. It embeds a link that redirects to malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The primary IOC is the malicious redirector URL.

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/hack-app-roblox-jailbreak-game-hack In PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-free-model-teleporting-to-st0p-l00kin-4-siskox_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/alvinblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-legendary-swords-rpg-hacks_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/hack-roblox-android_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/fake-robux-generator-for-free_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/csgo-roblox-hacked-client-download_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-phantom-forces-hack-dll_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-wall-hacks-2021_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-get-free-roblox-items_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-hacks-for-booga-booga_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/robux-generator-without-human-verification-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
font_00_sfnt_off00003454.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3454 22776 bytes
SHA-256: 7ecfb2bec0d18c1946dfe7b56be6dfac47283f85445028d5f04ccfaebfb80060
font_01_sfnt_off0000678d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x678D 19116 bytes
SHA-256: aaa1f6ce2970402884aec0d5c4159584c880383b06fa7620d5c2c4d1d7073f04

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