Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b72843fc13511a4…

MALICIOUS

PDF

35.1 KB Created: 2021-06-17 19:10:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 71b5ec19f6b2321399b6adf621c69f06 SHA-1: 7cbe01f608c73f870327630573e3e4ebbb9bfeb5 SHA-256: 0b72843fc13511a4223d033fab1ab320421ddb5345e6ffdf7e903c76560e6f6a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors and sites offering game hacks. The document body and heuristics indicate a lure for game cheats, specifically for Roblox and Coin Master, which is a common social engineering tactic. The presence of malicious redirectors suggests a multi-stage attack designed to lead the user to potentially harmful content or further malware.

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/we-are-developers-hack-for-roblox-game-hack In PDF document text
    • http://subarulegacy.com/images/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • http://subarulegacy.com/images/dragon-ball-fury-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/how-to-get-free-robux-on-fire-tablet_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/roblox-robot-animation-free_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/free-tiktok-likes-no-verification_GM835599320.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-3533-android-hack_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_off000030fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FA 22704 bytes
SHA-256: aaa15a70701164b14b44d838d9747b7c4bff1143dd2256f286701f16c4b1878d
font_01_sfnt_off0000635d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635D 19292 bytes
SHA-256: 767e0e25677cfa2b153b7965d9e9ccad75cfba2b4cade6b79cbe191bc3192a09

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