Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbf894f095dfe05a…

MALICIOUS

PDF

35.1 KB Created: 2021-06-26 17:55:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9ae88f0cd31d3289b4778748ec518ecd SHA-1: 2cfbb547a117b76e62ea1babd4d8d83a4eb12398 SHA-256: dbf894f095dfe05aa191915699eafe95094e9497a7f935a7ca92791a12d50b50
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links disguised as game hacks and free currency generators, a common lure for phishing or malware distribution. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract traffic. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lures strongly suggest a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • 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/hack-vehicle-sim-roblox-game-hack PDF link annotation
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-hack-any-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-cheat-engine-change-stat_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-do-you-get-free-2k-robux_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-make-a-robux-hack-code_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/cheat-engine-roblox-jailbreak-noclip_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/roblox-jailbreak-hack-bypassed_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-hack-tool-robux-and-tix_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-hack-free-download-pc_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/cheats-for-roblox-how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/soonic-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/robux-hack-2021-download_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/young-wild-and-free-roblox-id_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-simulater-kit-for-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B0 22748 bytes
SHA-256: e2365e005cfc3a81e9d59ba5d9e3bdb462e64d1aabc0c8671fecd1fea646092a
font_01_sfnt_off0000637b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637B 19336 bytes
SHA-256: cc200b35c37a45d9338bbadb7827380dbcad94776f4eabee47b002ccf6c7feb3

Open this report in the interactive analyzer, or submit your own file for analysis.