Malicious PDF — malware analysis report

Static analysis result for SHA-256 e56855fe5f5c9f82…

MALICIOUS

PDF

43.0 KB Created: 2021-06-03 09:52:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 46ed0de9537b22835e1bdd03d31124b9 SHA-1: ce4dc0860b7e06eb960b2f7128f3b7c4cf95f8b0 SHA-256: e56855fe5f5c9f8220cad792ecdcf64cdfa624bbe4d262c1cef490d8be8ea5cc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at tricking users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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 https://netcdn.online/app/835599320/get-free-tiktok-followers-game-hack In PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/wurst-commands_GM479516143.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/withdraw-robux_GM431946152.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/master-free-spin-and-coin-links-html-m-1_GM406889139.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/100-robux_GM431946152.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/hack-tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/mc-hacks_GM479516143.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/robux-money_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
stream_004_off000051c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51C5 23548 bytes
SHA-256: 28e9b0ef284fa6745d1cb02184941a054632552d603e0a5b42ccda80f5eb23b8
font_01_sfnt_off0000872d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872D 17692 bytes
SHA-256: 02c3cedea4a2807b323b614e41e6797ad921ddb65350057b59541dca36dbbb9a

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