Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed96406f965d04fb…

MALICIOUS

PDF

33.6 KB Created: 2021-06-29 06:13:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d7af10c9348d214318634791a1f4a870 SHA-1: 10f0065a195f91a87a94e7b314c2a1583369c410 SHA-256: ed96406f965d04fb1ee00cbd8b449f509a91eeb809906fa8f987ec3c94717e64
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 0.9980

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 http://netcdn.co/app/431946152/free-roblox-injectos-game-hack PDF link annotation
    • https://fib.ub.ac.id/sac/repository/game-stealing-service-free-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/flood-escape-2-infinite-jump-roblox-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-hack-roblox-jail-break2021-money_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-games-and-free-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/pokemon-go-free-pokeballs_GM1094591345.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-no-hack-no-download-no-survey_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/festive-shoulder-owl-roblox-free_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-hack-july-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/louka-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/apocylopse-rising-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/fastbucks-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-hacker-on-urbis_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
font_00_sfnt_off00002dd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD1 22104 bytes
SHA-256: 85949d40bb5b0dd0cd45fe6d11dbdf82ec0366039ffd996768027de2935eee56
font_01_sfnt_off00005e8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8D 18944 bytes
SHA-256: d931e90f1376a0647e6e1d7441036813a4f8427a39ba6df467ee10700416df34

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