Malicious PDF — malware analysis report

Static analysis result for SHA-256 e452db29b5eb6fa3…

MALICIOUS

PDF

44.4 KB Created: 2021-05-15 14:44:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5bacc9e134a6ae3a3b0f4e643ae59438 SHA-1: 526e0c03c839e2f77a98f025769f23fad0f81494 SHA-256: e452db29b5eb6fa3770328e51094313cb422431527db3a992ac7792b1fded624
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/406889139/fb-coin-master-hack-game-hack PDF link annotation
    • http://behsanroshd.com/images/free-roblox-codes_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/earnrobux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-free-items_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-account-taker_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-mobile-hack_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_off00004ab1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB1 24256 bytes
SHA-256: c3fbd6c523b89d5fb0f9f7357df37d1c372504e9899dd77065033d9a099c96c3
font_01_sfnt_off000081d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D6 2920 bytes
SHA-256: 601c50867a41b9362538ff18e5f9479a0f9badf698aaf1eb7e88469c11719db7
font_02_sfnt_off00008bef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BEF 18040 bytes
SHA-256: fbb613cf7ce1cb36a0a8d280c3838effdb84971329b91d5b96a8bc41d66c780c

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