Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0dd1c24ba5ebd9…

MALICIOUS

PDF

43.0 KB Created: 2021-05-17 03:05:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a75e9300b3d4dabe18e40f78162b942c SHA-1: 52e380e51c01bdfc944669472a0ae93a2cbbaf6d SHA-256: 8e0dd1c24ba5ebd9787da1a96b492b33a33dc239604459232c04005bb5878139
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, disguised as a "Coin Master Game Free Download" lure. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at driving users to malicious sites, likely for further payload delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-game-free-download-game-hack In PDF document text
    • http://bogatyr.com/images/earn-rbx_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/code-free-robux_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://bogatyr.com/images/freespinandcoin_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/robux-no-verification_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-free-spins-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-hack-https-coinms-net_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
stream_003_off00004a07.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A07 25900 bytes
SHA-256: a60d1b8544861288f29ef5b5d052ee3fac65bc6b34a18120db9f9daad124e0f9
font_01_sfnt_off00008513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8513 18548 bytes
SHA-256: a0a0c8e1d18cb0b2c4d70870d3dfc55de425b9372d4c2a3baebf4bcbef941d80

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