Malicious PDF — malware analysis report

Static analysis result for SHA-256 c17d0b2f0a370589…

MALICIOUS

PDF

35.0 KB Created: 2021-06-28 15:11:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 17cc72370b9180b76b8ab9f2ab035677 SHA-1: 6f542d899a99bb3e7ac074a4a4321fd84da825e9 SHA-256: c17d0b2f0a370589550b85cfe06e22cea1689f92cc72c8bd6945260c30e58055
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 hacks and generators. The primary lure is the URL http://netcdn.co/app/431946152/free-roblox-hacks-phantom-forces-game-hack, which is associated with malicious infrastructure. The document body and heuristics confirm the intent to redirect users to potentially harmful content.

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-roblox-hacks-phantom-forces-game-hack In PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-how-to-get-clothes-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-promocode-hack-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-health-hack_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-password-hacker-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coolkid-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-generator-com_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-codes-that-haven-39_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/robux-free-promo-codes_GM431946152.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_off0000300e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300E 22716 bytes
SHA-256: e87dddaf637e9dfef6027843713d46f5e4d42e7415ea2857cb47ff81cff70c4d
font_01_sfnt_off000062d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D7 19504 bytes
SHA-256: 71765d19361b194f7d90f729eb138d9c1150e9a68cd3e108eedcfebce8e42e79

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