Malicious PDF — malware analysis report

Static analysis result for SHA-256 44b48247883accc2…

MALICIOUS

PDF

34.1 KB Created: 2021-06-18 13:59:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 89fd959119490f6d0b21b26a9ee656be SHA-1: c6c9c3e5f8aff10e7020b0101e1e2c0ec3d3f62b SHA-256: 44b48247883accc20cdb742583e2fba13f94adce96e23f3e2e6375b612d276f2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, masquerading as a 'game hack' or 'free generator' lure. The primary URL, http://netcdn.co/app/431946152/how-to-get-free-clothe-roblox-game-hack, is repeatedly referenced and is associated with malicious redirector infrastructure. The document body and heuristics confirm the intent to trick users into visiting this malicious site, likely as part of a phishing or scam campaign.

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/how-to-get-free-clothe-roblox-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-someones-account-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-hair-extensions-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-adder_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-glitch-mobile_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/new-roblox-hack-zombie-rush_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-vote-kick-in-free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-play-online-free_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
font_00_sfnt_off00002eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAF 22348 bytes
SHA-256: 26fc3e3a5371404f9bf1a7a696fc27cc460b7eb666876cdc32dccb56c9794457
font_01_sfnt_off0000602f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602F 19084 bytes
SHA-256: 19226ae84bc2d95dab0236afd2ab906cc884c4f6a116e151323f8426ca41f113

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