Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7b9b1a601ea2f8d…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 06:50:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 86049fb89873d6af2e398b07621a2cdc SHA-1: 043839543d90d539203c19bde27cabb3e77e5eb8 SHA-256: e7b9b1a601ea2f8d0594f08e0a0619dd8c4399a50bd6ba895daed58ca8e33204
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external websites, many of which are hosted on suspicious domains and offer game hacks and cheats. The ML classifier strongly indicated maliciousness, and the presence of a "download button" lure further supports a malicious intent. The document's primary purpose appears to be directing users to these external resources, likely for malicious downloads or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/how-to-get-free-skins-in-minecraft-game-hack PDF link annotation
    • http://perpustakaan.ftk.uinib.ac.id/repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-robux-codes-june-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-hack-download-robux-game_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-cheat-engine-lumber-tycoon-2-money-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-roblox-script-hub_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/i-was-hacked-by-liepa20212021910-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/optifine-pe_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/how-to-obtain-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/hack-script-for-one-piece-legendary-roblox-copy-and-paste_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/coin-master-gold-cards-free-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/dora-creates-a-free-robux-scam_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/coin-master-apk-hack-mod-download_GM406889139.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
font_00_sfnt_off00003348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3348 22896 bytes
SHA-256: d6ee8df8c654b5db8e5c06a5a62e711aeebc65fb87c0da6038ce98bf9968cef9
font_01_sfnt_off0000661f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x661F 18332 bytes
SHA-256: aae53986d5e040802ba5fac0bdf7ddb8e28dcfd27e7dab4d6fe2a7bdc2952b4d

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