Malicious PDF — malware analysis report

Static analysis result for SHA-256 a80ccafc592878b3…

MALICIOUS

PDF

40.8 KB Created: 2021-05-11 06:31:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e9309d28a9e245e8c9dd5c0e14105974 SHA-1: 6b728ef3673a3040610d8973afd6a7b230fa2545 SHA-256: a80ccafc592878b3933c5bc43d7b01a9362b85ae76ca56df321ed2fadbadfce7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The document body and extracted URLs strongly suggest a social engineering lure designed to trick users into downloading potentially unwanted or malicious software. While no scripts were explicitly extracted, the nature of the links and the heuristic firings indicate a high likelihood of a malicious redirector chain.

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/descargar-hack-coin-master-game-hack In PDF document text
    • http://pourvosvacances.com/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/coin-master-free-spins-2021-apk_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/robux-win_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-coin-app_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/roblox-character-free_GM431946152.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_off0000469b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x469B 24020 bytes
SHA-256: 813d618e60b753ba1a370e2295159ad97069cab05fb2f1af26f8ee5be0f05f59
font_01_sfnt_off00007d30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D30 18172 bytes
SHA-256: 8e05f9f32595a35b5a9f3361bee3fb11860dee14ab597e5c6e5f24d8016f84fd

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