Malicious PDF — malware analysis report

Static analysis result for SHA-256 266e9f7c3be881ee…

MALICIOUS

PDF

45.6 KB Created: 2021-05-11 08:40:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 146744a51a7a0adf9bd78bd88bcb01d6 SHA-1: 8f700e3f3b16460f894c407596602e740b7f1c9c SHA-256: 266e9f7c3be881eeab91c89390c7fcd3d4392d8d3a948a8f9f778b2c082fea19
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a high-severity heuristic firing indicating it links to a 'free generator / game hack' redirector, specifically pointing to a URL associated with Roblox hacking. The document body, though heavily obfuscated, contains references to 'Roblox Hacking Website' and the same malicious URL. This suggests a social engineering attack aimed at users seeking game cheats, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/431946152/roblox-hacking-website-game-hack PDF link annotation
    • https://www.anagoria.com/images/robux-com-free_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/robux-gainer_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.anagoria.com/images/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-rewards_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/free-robux-co_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • https://www.anagoria.com/images/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://www.anagoria.com/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/free-daily-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49F4 26048 bytes
SHA-256: 4622653815b719046259340d8c1cddf6cfe5fc0538c47f517071346f4121d3d8
font_01_sfnt_off000083f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F7 2852 bytes
SHA-256: e9630f3bb738ae3bc329a423cf069c8035d70ce2227e3557c42815f85ad3284f
font_02_sfnt_off00008db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB8 18892 bytes
SHA-256: e7d47ce6402ad6c34a9dd837b4455ddf5104770abd157e72eb2d384f2e13ef46

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