Malicious PDF — malware analysis report

Static analysis result for SHA-256 65818322f9592c77…

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 12:53:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0d67fd1cbfe5e1fd721365c068eb5eae SHA-1: 9d7914d11761988ea9930b00c836234b04d8db3d SHA-256: 65818322f9592c77381422101e211bbeebcff6c6d5a7fb276eaa85a4ad01e3ee
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/479516143/minecraft-free-download-mac-game-hack. The document body and embedded links suggest a lure for free game items or hacks, likely to trick users into downloading malware or visiting further malicious sites. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a high likelihood of a phishing or malware distribution 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.tw/app/479516143/minecraft-free-download-mac-game-hack In PDF document text
    • https://digilib.darmajaya.ac.id/repository/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/izuku-midoriya-roblox-free-shop-t-schirts_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/all-roblox-eggs-2021-hack_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/how-to-get-free-robux-2021-not-patched_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-robux-website-survey_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-robux-xbox-1_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-shoulder-pets-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-generator_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-gamepass-roblox-scripts-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-minecraft-hacks_GM479516143.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_off000030fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FB 22248 bytes
SHA-256: 830fe8b17c2a4d97e0da7ca8a8f32a4d62f615952776d913ce9e4d2e43531a24
font_01_sfnt_off000061d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D3 18576 bytes
SHA-256: 06b239d8a28b1d5597486ea199a20c5d387b716390632991d2cfb7c0688950f5

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