Malicious PDF — malware analysis report

Static analysis result for SHA-256 40afa26f67e0755c…

MALICIOUS

PDF

34.3 KB Created: 2021-06-28 15:53:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7564e2f54cde61b526153e5e2c557b3a SHA-1: f568be12b235926f2cc8d7f1b9ee97a997a635b5 SHA-256: 40afa26f67e0755c05bcfbd623426fc617749bc1ac0e48ee5016713b48fb7219
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to 'netcdn.co', which is flagged as a malicious redirector. The document body and heuristics indicate a lure for game hacks, specifically mentioning 'Roblox Jailbreak Money Hack Deutsch'. This suggests the document is designed to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/roblox-jailbreak-money-hack-deutsch-game-hack In PDF document text
    • http://library.ulb.ac.id/repository/cheat-roblox-skin_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-apk-no-survey_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/pokemon-go-free-play-online-without-downloading_GM1094591345.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/i-hacked-john-does-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-adopt-me-free-pet-codes_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/mcpe_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/cheats-for-blodody-mary-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/hack-roblox-tools-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/fast-robux-online_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_off00002f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F13 21600 bytes
SHA-256: 39acfd06fb02be8d4400ec19621e918d10f0797da67fbc835ec038580dd9346e
font_01_sfnt_off00005e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8C 19896 bytes
SHA-256: 3ccac6ee85ef0801aa381132b2e41b23b8f305fb1b499f2ae0d2035205bec64f

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