Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b97203499a1d546…

MALICIOUS

PDF

40.0 KB Created: 2021-05-12 03:14:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c5284061490455c55e397a1d9d53cb7f SHA-1: dd6142c1ea471a400ea69c949c59650b8988d627 SHA-256: 3b97203499a1d546a8b06a41ece02e7084d5fb28e158701a16a94aa86494d25d
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that are identified as malicious redirectors, specifically promoting a 'game hack' or 'mod menu'. The document body and heuristics indicate a lure to a URL that is known to host malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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-pe-mod-menu-game-hack In 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_003_off000033b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33B2 27800 bytes
SHA-256: 1de4cb2d393d10eaff1475a00b8fc8db8d3534813fea09014be6ca0f172de1e2
font_01_sfnt_off00007138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7138 3128 bytes
SHA-256: 801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
font_02_sfnt_off00007b77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B77 18176 bytes
SHA-256: 0efffecd5b51ce5fa0eba3ab09a2067e25d5e39d4b8db43b8d16666658ac95e4

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