Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca49d9093f911e21…

MALICIOUS

PDF

43.6 KB Created: 2021-05-16 19:49:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d832d74a270a2fe744ec7243ca18f605 SHA-1: c659a635f3c115387f4a52ea60d13b3833078c87 SHA-256: ca49d9093f911e215d40f03f2cc264aa7ce6b5d3efb99697a721b55746a53971
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with game hacking content. The document body and embedded links suggest an attempt to redirect users to malicious sites, likely for further exploitation or credential harvesting. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/how-to-hack-coin-master-root-game-hack In PDF document text
    • http://dennemaat.nl/images/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://dennemaat.nl/images/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/free-robux-hack-no-verification_GM431946152.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_off000047a7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47A7 30176 bytes
SHA-256: 1e137c8e11bb60bdcf13b86ef70106f7235e5b0b5aaffe581855c2adb2fa7b18
font_01_sfnt_off00008979.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8979 17880 bytes
SHA-256: 8d1f2374cc0ee299ef3230cc600176bd8051b87b632aac22800208bfbee90f8f

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