Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7902d7e1ee50c2b…

MALICIOUS

PDF

34.9 KB Created: 2021-06-28 22:21:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6ad0dcc5e2455a05bff31c15670ed3b1 SHA-1: 5dcf3cb9db88f9d9d974964f7c87696acbdac508 SHA-256: a7902d7e1ee50c2bebc03fce1d6d72f3569339eaed1ebb22c209afc00b218814
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The heuristic firings indicate a malicious redirector and a lure for game cheats, suggesting the primary goal is to drive traffic to potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt.

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/case-clicker-hacked-roblox-game-hack In PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/ben-toys-and-games-free-robux_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/get-free-robux-just-by-joining-this-group_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/hack-exploit-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/roblox-com-redeem_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/free-robux-click-the-button_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/is-there-a-way-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/holocene-hack-roblox_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/hack-roblox-mod-menu_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/pubg-600-uc-in-indian-rupees_GM1330123889.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/how-to-get-free-robux-no-surveys-no-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off000030fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FB 22716 bytes
SHA-256: dbf03a6ad5371dc50f250c7d1e25bd7a24d7b05d8a580a055503b73043ef1fcb
font_01_sfnt_off000063cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CC 18952 bytes
SHA-256: 3777336d529dc4e1d1ea0afde2c1a9d1f26e4c2a3a5210c3bfcae2bb838ae091

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