Malicious PDF — malware analysis report

Static analysis result for SHA-256 db347a88d9c63ea0…

MALICIOUS

PDF

46.2 KB Created: 2021-05-16 22:42:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d7cd3e20b7966e3bbcdecd9c3f0ac42b SHA-1: 12e9340419d8c1698d88bf979dea3faaea87a761 SHA-256: db347a88d9c63ea0ee718e2b7b52583618f8d688bd8564e8507488a19acb4582
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, disguised as 'free generators' or 'game hacks' to lure victims. The heuristic firings indicate that these links lead to known malicious infrastructure. Although no scripts were extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to redirect users to potentially malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/479516143/how-to-make-a-minecraft-pe-server-for-free-game-hack In PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/free-robux-real_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/http-appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/simplysarc_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/getrobux-ninja_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/roblox-com-www_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/roblox-sexually-abused_GM431946152.pdfIn PDF document text
    • http://www.freenom.comHeyIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e53.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E53 24860 bytes
SHA-256: 2fece6daefa0ef410c609f7500ad2db0531e22db7223d4f35e4e89588d1a049c
font_01_sfnt_off00008781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8781 3056 bytes
SHA-256: dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028
font_02_sfnt_off000091f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F4 18312 bytes
SHA-256: 8d57e09dc2ab5dee4130bc415c565a1cfab31eb7ee6f144ff295d83a81e29e1a

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