Malicious PDF — malware analysis report

Static analysis result for SHA-256 c51329a968510d34…

MALICIOUS

PDF

43.3 KB Created: 2021-05-19 10:00:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ee1a7104faedff74ae4971a33ee09321 SHA-1: 87a0cac134704887537fd6f3b2886c98f294cc25 SHA-256: c51329a968510d3483f58700dd6637b51a3ce29d39ead04730eb4e8951d26d0e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game hacks, directing users to a suspicious URL. The presence of embedded URLs and the ML classifier's high confidence indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document structure and embedded links strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://netcdn.xyz/app/479516143/get-minecraft-for-free-game-hack PDF link annotation
    • https://texcarmats.com/images/get-free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • https://texcarmats.com/images/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • https://texcarmats.com/images/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • https://texcarmats.com/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • https://texcarmats.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://texcarmats.com/images/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://texcarmats.com/images/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/how-do-i-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • https://texcarmats.com/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • https://texcarmats.com/images/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
    • https://texcarmats.com/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://texcarmats.com/images/minecraft-on-computer-free_GM479516143.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
stream_003_off00004c96.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C96 26848 bytes
SHA-256: 399abf7ec632803e6d72df4141684874c6360f3790d862ad261a66e937a1e71e
font_01_sfnt_off000088a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88A8 17712 bytes
SHA-256: 35f99bfb73b52248bbdf58e6e807942ea3200a6c0759a8418b864f3a1fae0a50

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