PDF static analysis report

Static analysis result for SHA-256 441cab24cc5ead88…

SUSPICIOUS

PDF

44.7 KB Created: 2021-05-11 22:38:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0eb85e68c3978ccbad23b1aa9982b40d SHA-1: c5150e2393a78f4d5afbaa24e844afca269d1c05 SHA-256: 441cab24cc5ead8811fdef616e56389b9478ca9e82d759a97f149a4e6b0a8ffe
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a heuristic firing for an external URI, indicating an attempt to redirect the user to malicious content. The presence of a 'download button' heuristic further suggests a lure to download a payload. While no scripts were explicitly extracted, the ML classifier's high confidence score and the nature of the embedded URLs point towards a malicious downloader or exploit delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 3

  • 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/coin-and-spin-game-hack PDF link annotation
    • http://perpustakaan.bkkbnkaltim.id/repository/hack-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/wurst-18-9_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-free-500-spins-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-people-girl_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-100-robux_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049c9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49C9 25480 bytes
SHA-256: 3adef8e0b6d4f88002d451da204fb178bc27020574618626a158d0ecac64bca7
font_01_sfnt_off00008463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8463 2868 bytes
SHA-256: d2d857e2ddc1082c7667b23f2135a5c0ba26a2ff8b42c86c89c8e0b09aece855
font_02_sfnt_off00008e4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4D 17564 bytes
SHA-256: a6ef3811b1a03bfcc16e5339e9aa6379662d7be5e2ddecd345c1ce512af9bda3

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