Malicious PDF — malware analysis report

Static analysis result for SHA-256 a16382fd2887bda1…

MALICIOUS

PDF

33.7 KB Created: 2021-06-28 02:54:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: bee784acc33614068005208bc7f440f3 SHA-1: c429d671e17025fd7d9e0f5669d5c5e5b7b05fa8 SHA-256: a16382fd2887bda1490176c3fbdf1bbb471d80f740149807d5ad006c745621aa
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are related to game hacks and generators for popular games like Roblox and Coin Master. The primary lure appears to be 'Hack Into Roblox Account', directing users to a suspicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URIs strongly suggest a phishing or scam attempt designed to redirect users to potentially malicious sites.

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/hack-into-roblox-account-game-hack PDF link annotation
    • http://elibrary.perludem.org/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-cheat-engine-2021-download_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-free-builders-club-generator_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/rxgate-cf-free-robux-redeem-code_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-download-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-daily-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-hacks-2021-augest-7th_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-free-robux-at-computer_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/how-to-change-roblox-name-for-free_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00002ed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED8 21804 bytes
SHA-256: 8d53c91ad3c414b058ae223300ba2f9b3994a9df5333e84d1d4667a43ffc3c3a
font_01_sfnt_off00005f0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0D 18900 bytes
SHA-256: 417c7ab2f0e0abd11201abe93df766f7010ed5a53a4dfe6d95fc3c85bd041035

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