Malicious PDF — malware analysis report

Static analysis result for SHA-256 275232ee9c13665c…

MALICIOUS

PDF

35.3 KB Created: 2021-06-26 06:03:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3b0a09f7f0009d5be36a28cb510cd1ee SHA-1: 99f3d2ab1a99d1d2f26468d230d3702b6f709cbc SHA-256: 275232ee9c13665c45b6853154228a7a500428baad7677bc50012852b47899c9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free items to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn serves further malicious PDF files. The document body and embedded URLs strongly suggest a phishing or scam campaign aimed at users seeking in-game advantages.

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/roblox-medieval-warfare-reforged-hack-game-hack In PDF document text
    • http://global-brand.net/userfiles/files/roblox-dbn-hack_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/chemises-furious-jumper-free-roblox_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-free-admin-for-roblox_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-execute-code-with-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-nike-roblox-shirt_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-free-spins-and-coins-today_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off0000323f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x323F 22284 bytes
SHA-256: abfa03c28d5616867aeac5fe7e7f5bf2eb6cf17c14b946a684bda0ccc1c02a6e
font_01_sfnt_off000063b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B9 19456 bytes
SHA-256: 5b55b703aae84e2a400260c8c379fa9907d039c95b4e33195a7aa744160b8a47

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