Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e65d0c97c3263f…

MALICIOUS

PDF

43.4 KB Created: 2021-05-17 00:00:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7b7cd7d7cf314f7a829e3c79c3a1d678 SHA-1: 597a946451714457fa1a088106989106c1d3836e SHA-256: c6e65d0c97c3263f65c8b0fe0a357f5e82c402b1a2bb9b8abe985970ac956627
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on them by promising free in-game currency or hacks. These links redirect to malicious infrastructure, indicating a phishing or scam attempt. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/431946152/free-robux-promo-codes-2021-game-hack In PDF document text
    • http://jdleducation.com/images/give-me-robux_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://jdleducation.com/images/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/roblox-skin-free_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://jdleducation.com/images/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/minecraft-free-computer-game_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_off00004991.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4991 26380 bytes
SHA-256: d214be55ace76349035612f2d321be2843cf2a131f564913fed06499d2d4df9a
font_01_sfnt_off00008542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8542 19004 bytes
SHA-256: 2ae4233163b81a205a597c97f5f9bceef85a21038461a0399da8d1b6d9f39b0a

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