Malicious PDF — malware analysis report

Static analysis result for SHA-256 d43ba02d890965e2…

MALICIOUS

PDF

49.5 KB Created: 2021-05-14 20:33:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f545afe22965023472d591efdb3e9777 SHA-1: b66fd2b0b89e12b699dd09cf6a1a6dfc640a38e1 SHA-256: d43ba02d890965e2c6f417a2676124b0db9179d093686bfe8320380d8b0e6131
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, specifically advertising 'free generators' for games like Roblox. The document body, though partially corrupted, contains URLs that reinforce this lure. The primary function appears to be redirecting users to potentially malicious websites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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.xyz/app/431946152/roblox-robux-generator-http-freerobuxgenerator-xyz-game-hack In PDF document text
    • https://beejekorf.nl/images/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://beejekorf.nl/images/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://beejekorf.nl/images/coin-master-free-stars_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://beejekorf.nl/images/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://beejekorf.nl/images/all-coin-master-spin-link-and-free-download_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://beejekorf.nl/images/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/cm-free-spins_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/how-to-hack-m-coins-mcpe-master_GM406889139.pdfIn PDF document text
    • https://beejekorf.nl/images/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • https://beejekorf.nl/images/e-free-roblox_GM431946152.pdfIn PDF document text
    • https://beejekorf.nl/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://beejekorf.nl/images/roblox-hacks-com_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49CC 25100 bytes
SHA-256: b5e21a50231b0011c0f1d0beb2533eee6ca325c7147ca2ce33a57941d496f91f
font_01_sfnt_off000083a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A3 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off00008ec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC8 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off00009bd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BD9 19148 bytes
SHA-256: ca12ce3d7dfc1e8f594ff16b8d50f9174b7c57a2d485e52127105fd2973060c9

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