Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7b702dc27998682…

MALICIOUS

PDF

33.6 KB Created: 2021-06-25 11:57:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e19fe5cb2449e1dce5fd2098a4305ed9 SHA-1: 14606e43cfd4a6b161e807a91bb33e04cfe420bf SHA-256: f7b702dc27998682311eb68e259bbc723a4f07401453a1c70ab243bf94de03fc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, masquerading as 'game hacks' or 'free generators' to lure users. The primary redirector URL is http://netcdn.co/app/431946152/how-to-ban-people-on-roblox-hack-game-hack. This behavior suggests the document is designed to lead users to malicious websites, likely for further exploitation or malware delivery.

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.co/app/431946152/how-to-ban-people-on-roblox-hack-game-hack In PDF document text
    • http://kermas.eu/images/free-roblox-accounts-v3rmillion-2021-august_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://kermas.eu/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://kermas.eu/images/roblox-its-free-music-id_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • http://kermas.eu/images/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://kermas.eu/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/how-to-hack-roblox-life-in-paradise-free-download_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://kermas.eu/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://kermas.eu/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/free-avatar-items-roblox_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/mobile-hack-roblox_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • http://kermas.eu/images/hack-kick-off-roblox_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://kermas.eu/images/free-spins-link-in-coin-master-2021_GM406889139.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_off00002db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB1 21888 bytes
SHA-256: 87a9eff7327307a48082a18a939cd9e8353c9dc962d246ac2f1c2fff03efdfc2
font_01_sfnt_off00005ded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DED 19148 bytes
SHA-256: fe54d812222b204731aa2f36553741b10a94de765c9d6f9d8d24a5d7d41e03d9

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