Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c34145a00374c09…

MALICIOUS

PDF

45.7 KB Created: 2021-06-11 07:28:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a74422611c8154ccafea09308380e75e SHA-1: e4b51e6c05c65168b1498cebbbbe1b1d62f900a7 SHA-256: 7c34145a00374c099550d5aa5989759bfb859bcef66f94fdd61ff39b5091e817
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors and a specific URL associated with 'free generator / game hack' lures, indicating a social engineering attack. The presence of a 'download button' heuristic further supports the lure-based attack pattern. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest it's designed to redirect users to malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/giveaway-free-robux-game-hack In PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-robux-hack-2021-ios_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/nnuevo-hack-de-robux-2021-atualisasion_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/hack-compt-roblox_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/hack-fhantom-forces-roblox_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/how-to-hack-and-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-piano-hack-sheets_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/free-knives-on-assassin-roblox_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/ex7-roblox-free-download_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/how-to-hack-roblox-free-robux-and-tix-2021_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/get-free-robux-gigicom_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/hack-robux-no-verification-human_GM431946152.pdfIn PDF document text
    • https://brsolutions.pl/wp-content/uploads/fsqm-files/free-tiktok-views_GM835599320.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
stream_004_off00005069.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5069 27376 bytes
SHA-256: cf515938072f490d651cef8e51d1cb8958674185d4e7a1d7e0fe77f09d0efc77
font_01_sfnt_off00008e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4F 18820 bytes
SHA-256: 02611282908016f22240963c7e07604069227067ca8a0a25ffe971063febf34f

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