Malicious PDF — malware analysis report

Static analysis result for SHA-256 015b0961c79b1e81…

MALICIOUS

PDF

44.6 KB Created: 2021-05-13 07:05:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ee7380cc2d72e92b60bae3503719520f SHA-1: 9421d6c9fa289c4227016f76d3c9bce26e30b5f0 SHA-256: 015b0961c79b1e81c338b0efcda780a60825ec95b03c396efce2d7401034c012
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free spins" for games like Coin Master. The presence of a visual download button lure and the ML classifier's high confidence score further support its malicious nature. The document's primary function appears to be social engineering users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/coinmasterfree-game-hack In PDF document text
    • https://sdg-trade.com/images/claim-robux_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/games-for-robux_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/coin-master-strategy_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • https://sdg-trade.com/images/minecraft-windows-10-edition-hacked-client_GM479516143.pdfIn PDF document text
    • https://sdg-trade.com/images/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/coin-master-bonus_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/robux-com-free_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/coin-master-free-account_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/coin-master-free-spins-link-today-ios_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49A0 24396 bytes
SHA-256: 71b61a1ccbb13856b86bbf4788c9162516cdd3892da5040c045a22ee43e78a83
font_01_sfnt_off00008154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8154 3540 bytes
SHA-256: e4df3d87dbfd0ad75b60297d345dafb9b49e7e093722e295d53dc9a8e02a0937
font_02_sfnt_off00008d22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D22 17808 bytes
SHA-256: ed5fdd5441acd06a3bb02758ac945137dbfa7be696a0962169bf0eb95ec74bb8

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