Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce38643794352fb…

MALICIOUS

PDF

33.3 KB Created: 2021-06-18 15:54:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: d04caec24358520557ca3d8e4413c573 SHA-1: 76382ed27c6c14b3a9446180dd7d8f7e84488d9e SHA-256: 0ce38643794352fbcae6071e2ceca57ce22028db9bc4a9092a793da621086ed3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures for popular games like Roblox. The presence of a visual download button and the ML classifier's high confidence score indicate a malicious intent to trick users into visiting potentially harmful sites. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt.

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/on-roblox-how-to-get-robux-for-free-game-hack In PDF document text
    • http://svadba-moda.kg/images/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-royale-high-school-cheats_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-install-free_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-do-you-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-wanted-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-how-to-get-free-money-in-jailbreak-november-2021_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-20210-robux-download_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-roblox-gear_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-cheat-in-roblox-counter-blox_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/sipo-fun-robux-hack_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-advanced-warfare-tycoon-cheat-codes_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/robux-plus-live-hack_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_off00002ece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECE 21468 bytes
SHA-256: c9f8b2674e5f1775b66f1384a4e28891702b6716556473598385ccac7315590c
font_01_sfnt_off00005da1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA1 18872 bytes
SHA-256: 82c69310a02741028156789bb17bcb4321adcb5b2a8401f6956e2a96ba4d4124

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