Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd4489ea599a347e…

MALICIOUS

PDF

42.4 KB Created: 2021-05-19 09:14:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 179a4fc308f7972b984d01bf7be2e7f5 SHA-1: 4fc4459e2360aac57df2ebcb89f3da99a112db75 SHA-256: dd4489ea599a347ec460c932f87a04182cb56a13f863647ad7cbe81a3c91dec8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors, including one that masquerades as a game hack. The ML classifier also flagged this PDF with high confidence. The document body and embedded links suggest a lure to download potentially malicious content or visit further compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/wurst-minecraft-game-hack In PDF document text
    • http://aimp-market.ru/images/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://aimp-market.ru/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/free-links-for-free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://aimp-market.ru/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://aimp-market.ru/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://aimp-market.ru/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://aimp-market.ru/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://aimp-market.ru/images/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • http://aimp-market.ru/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://aimp-market.ru/images/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • http://aimp-market.ru/images/wurst-download_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
font_00_sfnt_off00004977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4977 26716 bytes
SHA-256: 974b04d71ec9a95ef9c6933173198a8a2c5c040a30caf8ed5414fef6c60366f1
font_01_sfnt_off00008487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8487 17904 bytes
SHA-256: fe2be4bfd964b3268c312eb0b249b51bf809c15fdb0694b3c785ca9563b07e04

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