Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a930049dd71e576…

MALICIOUS

PDF

34.5 KB Created: 2021-06-22 02:57:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a6cb8dd1236ca0df1a696ec7bb412f0a SHA-1: 5233fa58c3002d2e6c88918f08e8f959456ece16 SHA-256: 2a930049dd71e5764bc4be1cfd8a9237beaef85ec289f24e0bfc2a210559eb9d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as free game currency or hacks. The document body and embedded URLs suggest a lure for users seeking in-game advantages for games like Roblox and Coin Master. The primary malicious action appears to be redirecting users to potentially harmful content or further malicious downloads.

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/free-logo-youtube-for-roblox-game-hack In PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/roblox-robux-hack-generator-no-download_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/free-rich-in-roblox-accounts-with-limiteds-dump-2021-working_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/roblox-apocalypse-rising-how-to-spawn-items-without-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/roblox-instakill-npc-hack_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/free-robux-codes-2021-android_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/pubg-uc-shop-pakistan_GM1330123889.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/roblox-hack-website-easy_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/pokemon-go-free-license-key_GM1094591345.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_off00002f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F75 22756 bytes
SHA-256: 88bdeb60967f2b5c709d6d8f85337ecdb91b1bf1e1c98d77e9cf5065f5dea50b
font_01_sfnt_off000061d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D7 19056 bytes
SHA-256: e4f363265c37466bb86b023cdfcba9e0502a3b570df42a93f29f9f410eeaba0f

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