Malicious PDF — malware analysis report

Static analysis result for SHA-256 d46bb089d7f033ef…

MALICIOUS

PDF

39.9 KB Created: 2021-05-22 16:40:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 51593cc3b1b674e45c24479690431a1d SHA-1: 096c2f10d701db2bf6c0b443c3d0d7c9531d0da1 SHA-256: d46bb089d7f033efc570a98b624fe1288ba76e5c28b8d839dd9b65103da0463c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of 'free Robux' or 'game hacks'. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-robux-pastebin-game-hack, which likely serves as a gateway to a second-stage payload. The document body and heuristics indicate a social engineering tactic to trick users into downloading potentially harmful files.

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/431946152/free-robux-pastebin-game-hack In PDF document text
    • http://g3galileo.com/images/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/robux-gainer_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/pokemon-go-free-zekrom_GM1094591345.pdfIn PDF document text
    • http://g3galileo.com/images/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FF 28272 bytes
SHA-256: 08293e2c98fb9fac7cee0c90a6a8760e9d99b905e936bb03dae59db751fb462a
font_01_sfnt_off00006fbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBF 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off0000796f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796F 18620 bytes
SHA-256: 10493b23bc5ef0d73c1582ce0af85c313c8077c60a374ecda70c4edbf5cadd5c

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