Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0af74fd209e7196…

MALICIOUS

PDF

43.4 KB Created: 2021-05-11 00:43:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8ae22769ad16c6135fa1831017cc8787 SHA-1: 080daef43ce4cb238313c20a268f99d6eb3b58b5 SHA-256: e0af74fd209e71969472b908adc3490b069945e0fcbcb8bceae900360be31dbf
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 0.9969

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/479516143/minecraft-bedrock-download-game-hack PDF link annotation
    • https://perpustakaan.itda.ac.id/repository/how-to-win-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/real-robux-codes_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-tricks_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-verification_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-daily-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-hack-no-verification_GM431946152.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
stream_003_off00004cd1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CD1 25132 bytes
SHA-256: 8c16846bf420a0c3155fe36d9af619676fffd04f59826de302c2ddd38a50a565
font_01_sfnt_off00008612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8612 18676 bytes
SHA-256: 71d03cd911f296367a63c790b96900f67ec797f491b3f6a6ddf408856ea79078

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