Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf7fa1203232a7d…

MALICIOUS

PDF

45.7 KB Created: 2021-06-03 04:12:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: be13a0678963cdc55915b174dadf685d SHA-1: 0ef3b57f5f5ed3aabbbdc5b5e01474a4ace3fcb4 SHA-256: edf7fa1203232a7dfebf2853cd3cf4062e56c18d02ad309aa218132391d9eb31
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a "free generator / game hack". The primary link redirects to malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a potential for malicious JavaScript execution or redirection to a malicious site, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/2021-free-spins-coin-master-link-game-hack In PDF document text
    • https://jdclassicautoparts.com/image/data/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-spins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/whats-robux_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-2021-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/minecraft-book-collection_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_004_off0000509f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x509F 27256 bytes
SHA-256: 53d6fd1c3d8eadf062449da99d383aa6255e8660e0af7e48f636b94eb5d72948
font_01_sfnt_off00008fb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB5 18456 bytes
SHA-256: a76936ec484ac031b8c5f7bd82bd0b34adbabb4d9e9d5cccdc9978d26973b99a

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