Malicious PDF — malware analysis report

Static analysis result for SHA-256 8df4beefe6d6e8df…

MALICIOUS

PDF

37.7 KB Created: 2021-06-18 21:50:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 45cdd905900fa1b7f0043eaba5d302cd SHA-1: c9139b6326d3aa9c4330065aeca454592ec0b6ff SHA-256: 8df4beefe6d6e8dfd8b5333e31776f3b2896521d75430c8cb3de401fb854cc70
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically advertising game hacks and generators. The primary link identified is http://netcdn.co/app/431946152/roblox-cheat-for-brick-bronze-all-pokemon-game-hack, which is part of a pattern of malicious redirectors. The document body and heuristics strongly indicate a lure designed to trick users into visiting these malicious sites, likely as part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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/roblox-cheat-for-brick-bronze-all-pokemon-game-hack In PDF document text
    • https://art-concept.gr/images/fly-hack-download-roblox-2021-gameguardian_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/free-roblox-accounts-with-admin-permissions_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://art-concept.gr/images/hack-jeux-roblox_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/get-free-robux-on-a-ipad_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/hack-codes-for-roblox-rb-wolrd-2_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/free-apps-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/roblox-hack-free-robux-pc_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/funny-roblox-hacker-names_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/how-to-hack-a-roblox-server-2021_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/roblox-working-strucid-aimbot-hack-2021-august-pastebin_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/free-roblox-songs-mp3_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/wie-hacke-ich-mir-robux_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/how-to-hack-roblox-on-xbox-one_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/robux-hack-no-download-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://art-concept.gr/images/roblox-jailbreak-money-hack-download-2021_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://www.art-concept.gr/images/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003b90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B90 22444 bytes
SHA-256: 2bf56b3d8288f2b8dcd295904055063f4c0020662303ea8febca8f39d206354f
font_01_sfnt_off00006d6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6B 19520 bytes
SHA-256: 35fc4ae61bc2804b18110e3d87b822d2812f7979c93ebc0f38b5e7b7a40414e6

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