Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdc70a8b4cb3e7af…

MALICIOUS

PDF

33.5 KB Created: 2021-07-05 11:20:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c0808b6a906fcd50f4ba2f49ca7ab7b8 SHA-1: b56a0621da3af8a27fe4ce6fe06639094e971df6 SHA-256: bdc70a8b4cb3e7af080c9fd7c972b99da5de89956b4c49ee16974da64c8ad01b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple links to known malicious redirectors, including one that impersonates a game hack generator. The document body and embedded URLs suggest a lure to trick users into clicking malicious links, likely for credential harvesting or malware distribution. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a high likelihood of a phishing or malware delivery attempt.

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.tw/app/479516143/can-i-play-minecraft-for-free-game-hack In PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-limiteds-com-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-hack-in-roblox-assassin_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-flip-master-coins_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-free-spins-apple_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/robuxfree-con_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/roblox-jailbreak-teleport-hack-2021_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
font_00_sfnt_off000030c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C0 21732 bytes
SHA-256: 635cc96dac69235d65077786f9bb736a4c792ec6aa055e8c5d5a936bb74311c2
font_01_sfnt_off00006004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6004 18408 bytes
SHA-256: 22e68a0867652c0803059ede6b7bd21e7baaf57de2707374363b6777f36fc467

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