Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0ff5b04c19f6fd…

MALICIOUS

PDF

41.1 KB Created: 2021-05-17 09:48:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0804f0e58a536636ce80f62ffaa4efcf SHA-1: 7a2c744982200caea872de0570ad55e6c3ce8146 SHA-256: 2d0ff5b04c19f6fde1f2896a5eaa0d34fb0e7f012885577b43cee20d97978a76
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a malicious website, disguised as a 'game hack' or 'free generator' lure. The heuristic firings indicate that the PDF links to known malicious redirector infrastructure and uses a common lure for engagement. Although no scripts were extracted, the embedded links and the nature of the lure strongly suggest a phishing or scam attempt.

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/431946152/complete-offers-for-robux-game-hack In PDF document text
    • http://linens.kiev.ua/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://linens.kiev.ua/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://linens.kiev.ua/images/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://linens.kiev.ua/images/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://linens.kiev.ua/images/games-like-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/rewards-roblox_GM431946152.pdfIn PDF document text
    • http://linens.kiev.ua/images/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://linens.kiev.ua/images/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://linens.kiev.ua/images/coin-master-free-spins-link-2021-march_GM406889139.pdfIn PDF document text
    • http://linens.kiev.ua/images/free-spin-and-coin-blogspot-com_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
stream_003_off000044c9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44C9 24844 bytes
SHA-256: 9802699b9eaafe09501a0a0e0dfe7b46c458b8bf0d219d51505fab8f6486b409
font_01_sfnt_off00007d2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2F 18628 bytes
SHA-256: 27a538390e2791e01883ed63320744732627358ab115b0534bac8ed790d0f8b6

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