Malicious PDF — malware analysis report

Static analysis result for SHA-256 15130f38bce9439c…

MALICIOUS

PDF

39.2 KB Created: 2021-05-21 10:05:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6bc589408d13f39483b247008234ee05 SHA-1: 2c2fb0afc1cc5834293fed523e9234d9d31e328e SHA-256: 15130f38bce9439ce8c7b2f561f177450df89e6d890fdf982372a18fbe904a56
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector for a 'game hack' lure. The ML classifier also flagged the document as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect the user to a site that likely hosts further malicious content or exploits. The document body text reinforces the lure by mentioning 'how to get Minecraft Windows 10 for free 2021' and 'game hack'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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-get-minecraft-windows-10-for-free-2021-game-hack In PDF document text
    • https://phy.itk.ac.id/asset/backend/upload/ckeditor/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://phy.itk.ac.id/asset/backend/upload/ckeditor/files/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • https://phy.itk.ac.id/asset/backend/upload/ckeditor/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://phy.itk.ac.id/asset/backend/upload/ckeditor/files/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://phy.itk.ac.id/asset/backend/upload/ckeditor/files/hack-my-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://education.minecraftIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000359a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x359A 24540 bytes
SHA-256: 1188b82423e519ac68447b6fdf8ab419085b6a1711c30028cd3712cf4f4e1b51
font_01_sfnt_off00006c6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6F 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00007659.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7659 18648 bytes
SHA-256: 354bb2c2c4fae14b5c7df711c8f5a389dfe67cd832e4a835714c7b2f7ea7fa4d

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