Malicious PDF — malware analysis report

Static analysis result for SHA-256 008a9a09ed4ba08b…

MALICIOUS

PDF

42.4 KB Created: 2021-05-18 04:33:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 40ea7a2eecfcad85ec54a107813f3393 SHA-1: 65475c242df4847612b22c9ab778243c5b3aaeca SHA-256: 008a9a09ed4ba08bf7c9bc94ab8a1fa0a0b2eb5d7431e09873bfa83d25cc3ef4
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a document body advertising free Robux and Coin Master hacks, strongly suggesting a lure for users to download malicious files. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many of which point to domains associated with game hacks and exploits. The ML_NYX_PDF_MALICIOUS score further supports the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/free-unlimited-robux-game-hack PDF link annotation
    • https://piscinasmundoacuatico.com/images/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/android-coin-master-3433-apk-hack_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/robuxglobalcom_GM431946152.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/spin-coin_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/coin-master-free-spins-link-download-apk_GM406889139.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/roblox-com-redeem_GM431946152.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/free-pet-food-for-coin-master_GM406889139.pdfIn 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
stream_003_off00004965.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4965 24512 bytes
SHA-256: 0b09cf6364284b28e738e3d8b470f8b6aa94af930f0993e773be9547c584b4d3
font_01_sfnt_off000081ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AC 18932 bytes
SHA-256: c9ac8ff14f07bfa737a68dd52966d36d325e06134ccd0dbc32924edcfa3e5a8c

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