Malicious PDF — malware analysis report

Static analysis result for SHA-256 38b5b93ddcd536c4…

MALICIOUS

PDF

41.9 KB Created: 2021-05-18 23:52:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7463d71c15fe6f51be9a0e36f0c7fce2 SHA-1: dbb37f5ae3456f11252804ba45b1352fcb0cedc6 SHA-256: 38b5b93ddcd536c491813d018cc7741030a8e6784b3062c059cacedfe305066f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a known malicious redirector, disguised as lures for game hacks and free generators. The document body and embedded URLs suggest a social engineering tactic to entice users to click through to potentially malicious content. No scripts were extracted, but the presence of malicious links and the lure indicate a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/minecraft-reach-hack-game-hack In PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/strucid-aimbot_GM431946152.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/websites-for-robux_GM431946152.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://irecruitersafrica.com/ckfinder/userfiles/files/free-robux-sites-that-work_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a0f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A0F 24936 bytes
SHA-256: 6f2cafdcaee618fe9070325210c1afd94afcb605f3c6cb3cb519804317ad6200
font_01_sfnt_off000082e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82E5 17904 bytes
SHA-256: 338e778c1ae38c15f57d68695408d0432531e6a93a33e2a2d7ec381387a6f025

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