Malicious PDF — malware analysis report

Static analysis result for SHA-256 359cd211049032a0…

MALICIOUS

PDF

38.7 KB Created: 2021-05-23 03:15:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: eae17d7cf503b792dc5e7bbaa523057b SHA-1: adfde597092327b0eaae5eeb777fed5d6a760bc5 SHA-256: 359cd211049032a070686523ea063575039d380e55bc6a2e70bd3d025fc9e723
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors, specifically advertising a 'free generator / game hack' for Minecraft. The document body also contains a call to action to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR'. The presence of these lures and the ML classifier's high confidence score indicate a malicious intent to trick users into visiting potentially harmful sites or downloading malware.

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/minecraft-java-free-trial-game-hack In PDF document text
    • http://pa-kabmadiun.go.id/images/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/minecraft-pe-015-0-apk-free-download_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003405.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3405 24564 bytes
SHA-256: 7e57576b89e78beafdc855d457ce0e86fda5adfc15221084076bc81c53b2af23
font_01_sfnt_off00006c6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6E 3092 bytes
SHA-256: 3811f2fb1880daf4953efcc9c7427d9b438bced237490b00be4a6ec3ecea79e0
font_02_sfnt_off00007718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7718 17924 bytes
SHA-256: d296bfe87a6dc97e41f58611965175a9d8d851c6709ce0e2d245db43bc469752

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