Malicious PDF — malware analysis report

Static analysis result for SHA-256 406a9cc7c3139155…

MALICIOUS

PDF

44.5 KB Created: 2021-06-13 22:21:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a5563477f6b40de4956b990f381a6d74 SHA-1: 14cba0b282756305d6783d50e0a6c6c6783d2004 SHA-256: 406a9cc7c313915515ef47b3dd2c931bfcfb2d8f1d0b853cf6ea0c8a85bdc0b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and game-hacking related content, indicating a lure for malicious activity. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and 'PDF_MALICIOUS_REDIRECTOR_LINK' strongly suggest this is a phishing or malware distribution attempt. While no scripts were directly extracted, the document structure and embedded URLs point towards a malicious intent to redirect users to potentially harmful sites.

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/how-to-fine-addresses-in-cheat-engine-for-roblox-game-hack In PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/roblox-piano-cheat_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/hackear-el-roblox_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/how-to-hack-someone-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/all-gamepasses-free-on-roblox-gitch_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/free-robux-form-rblxgg_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/make-robux-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/how-to-get-free-robux-i-39_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/roblox-hack-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/get-everything-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/robux-gift-card-redeem-free_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/roblox-studio-download-free-for-ipad_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/roblox-events-2021-robux-free_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/rbx-heaven-free-robux_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/how-to-hack-a-roblox-account-2021-easy_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://www.awwda.go.ke/wp-content/uploads/fsqm-files/como-distinguir-a-un-hackear-de-roblox_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_003_off00004da0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DA0 25936 bytes
SHA-256: e8c07ea50cd9afda1b45340247b84b2d7ef62ed804e23a6147cdb48396554704
font_01_sfnt_off00008913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8913 19192 bytes
SHA-256: 9320c892120d9ed00df4f356cd686844c8190d1180310e8f63caa72f90f46c3c

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