Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0dd139e32aac281…

MALICIOUS

PDF

43.4 KB Created: 2021-05-11 05:06:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1b2bca3c1de550bd00133ecc76bc2871 SHA-1: 8741139e816a1522db8e899e427859ea665034bc SHA-256: e0dd139e32aac281bbb4c86567b83839934597482ea64afe84560eaf18c6f8ff
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document is designed to lure users into clicking on links that lead to malicious redirectors, likely to download further malware or engage in phishing. The document body and embedded URLs promote free game generators and hacks, a common social engineering tactic. The presence of multiple links to known malicious infrastructure and redirectors strongly indicates a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/free-spin-generator-for-coin-master-game-hack In PDF document text
    • http://tckontrola.hr/files/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/more-robux_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/coin-free-master_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://tckontrola.hr/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/coin-master-redeem-code-free_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/coin-master-free-spins--coins-2021_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://tckontrola.hr/files/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://tckontrola.hr/files/free-minecraft-server-hosting-with-plugins_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
stream_003_off00004ac5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC5 28084 bytes
SHA-256: a907a8b336ee56793170ac4076a2582352bdc15f6b97d1dcaea924f0412a0b0b
font_01_sfnt_off00008893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8893 17884 bytes
SHA-256: 875ea20670cc53df10756da7fc56e77b8f1dde7185e9259fbb8a92495bb142d9

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