Malicious PDF — malware analysis report

Static analysis result for SHA-256 747d5dbe38971f67…

MALICIOUS

PDF

33.4 KB Created: 2021-06-19 09:13:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: d2be1d033572b9a7b4365361680e3057 SHA-1: 019b1ccc0e9c46db6754090e004f7c1577212ea0 SHA-256: 747d5dbe38971f67000c1eaaaaeacf54429373a8ade88b98108a95996fa45fc3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting a "free Robux game hack". The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting potentially harmful websites. The ML classifier also flagged this PDF as malicious with high confidence.

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/bux-life-free-robux-game-hack In PDF document text
    • https://sanjoseelectricians.net/images/free-stuff-hack-roblox_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/blueberry-hack-roblox_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-how-to-get-free-admin-on-jailbreak_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-fashion-frenzy-cheats_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/how-to-get-free-roblox-hats-2021_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/free-sdcript-executer-for-roblox_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-hack-cheat-engine-65-robux_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/how-to-get-free-robux-without-apps_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-hacks-no-virus_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/how-to-be-thanos-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/hacking-in-parkour-in-roblox_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/free-robux-inspect-hack_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/attack-on-titan-project-hack-roblox_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/redeem-clde-roblox-free_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/how-to-create-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-hack-de-robux-version-2335202112-apk_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/how-do-you-finish-getting-free-robux_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/free-robux-generator-roblox-2021_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-fly-cheat_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-free-admin-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8B 22096 bytes
SHA-256: b4ebdee044bd2d27b71d5b999c629d1a83b8b426380c6f2ed106ea3fdc3e1b31
font_01_sfnt_off00005e9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9D 18652 bytes
SHA-256: 2375b6443e6c8ff7781bf3ed21afa6f6006643f8b7006a97918c79b99bf33640

Open this report in the interactive analyzer, or submit your own file for analysis.