Malicious PDF — malware analysis report

Static analysis result for SHA-256 47fc0a9161a3e63e…

MALICIOUS

PDF

44.1 KB Created: 2021-06-04 08:50:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ec129b91336e110906039cdb8d36dc57 SHA-1: febe0b135841606237f7a67f02d35b687fb26834 SHA-256: 47fc0a9161a3e63e067cdc17a291718c5f8198efbb9f7a7e1f1616ff87c45e86
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that masquerade as game hacks and free currency generators, a common lure for phishing and malware distribution. The primary link redirects to a suspicious domain, likely serving as a landing page for malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/1094591345/pokemon-go-hack-free-coins-game-hack PDF link annotation
    • http://library.ulb.ac.id//repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-game-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-spins-daily-link-game-mod_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robux-miner_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/wurst-18_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/can-i-hack-coin-master-with-lucky-patcher_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
stream_004_off00004f2b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F2B 26244 bytes
SHA-256: 0769b5d2f810e94a3e4768806259ac6472f6e3e546ba50f50623510aed31d7ed
font_01_sfnt_off00008a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A84 18192 bytes
SHA-256: 583be69500ccfa8bf0d827790680996f1cd9491f2a75ca1f6901357471fe7bfe

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