Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d596d15e2964881…

MALICIOUS

PDF

42.5 KB Created: 2021-05-10 23:31:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d477ac630514796b7b7353e7758bc90b SHA-1: 6d093212a965d4357442b4c616b9283e42be9e4b SHA-256: 6d596d15e2964881aeab8da889a57fe42555332bead0d78a49d63fd3709f33bb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and potentially unwanted content, disguised as game hacks and free generators. The embedded URLs, such as 'https://netcdn.xyz/app/479516143/how-to-downgrade-minecraft-pe-game-hack', are designed to lead users to malicious sites. The document body and heuristics indicate a social engineering lure to entice clicks on these links, likely leading to further malware downloads or phishing attempts.

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/479516143/how-to-downgrade-minecraft-pe-game-hack In PDF document text
    • http://mou16-murmansk.ru/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/coin-master-generator-free_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/how-to-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://mou16-murmansk.ru/images/free-unlimited-robux_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_off00004ac3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC3 24748 bytes
SHA-256: f8f64957524cace9d8306be9109f6afe227d8635c6f7ee7a07c0f00a7366468e
font_01_sfnt_off000082cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82CC 18656 bytes
SHA-256: f671632c41bdcd8896512b89e0179723263a2bce0274879a7730ace5e1a9329c

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