Malicious PDF — malware analysis report

Static analysis result for SHA-256 3004faff1fcbf7c8…

MALICIOUS

PDF

36.1 KB Created: 2021-07-02 07:07:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: af579ca83b4f9d34567acce6ba119318 SHA-1: bd23b977448135620fe6712d9555a07ba57db35c SHA-256: 3004faff1fcbf7c8476f7c717623baea74574fda3369a516dbf2d2c0623a6815
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that lead to known malicious redirectors and other PDF files, masquerading as game hacks for popular titles like Roblox. The document body and heuristics indicate a lure for free game generators or hacks, which is a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious workflow designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-for-roblox-no-human-verification-2021-game-hack In PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-no-password-or-username-may_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/freecoins_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-item-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/hack-roblox-electrick-state_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-today-only_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/abd-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-build-a-boat-for-treasure-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-hack-into-peoples-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-how-to-get-robux-no-hack-2021-fre_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/money-hack-restaurant-tycoon-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-always-works_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-obc-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-hack-without-download_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-stolen-roblox-games-download_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-gang-rape_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_off00003374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3374 22384 bytes
SHA-256: a97bfabc63de18c2c540761c2a2ca954b88456953b047f0aff65cd6f934d6be4
font_01_sfnt_off0000654b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x654B 19980 bytes
SHA-256: 202cd6dee144b44e1367b556fdd7a5c76ddb296161a9f378236db8557233e165

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