Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bc18eeee5aeee77…

MALICIOUS

PDF

51.4 KB Created: 2021-05-15 17:04:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0a718c4b7fc3700917b27f419197d3a3 SHA-1: 61a3bf3f9828fc83d8989c3c5736def9de22628d SHA-256: 5bc18eeee5aeee77f4fb48a2eb98cc968ad4718e5a8c935087f2d795a7d4dd6a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures. The primary malicious URL identified is https://netcdn.xyz/app/406889139/free-spins-coin-master-without-survey-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector designed to lure users into potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5234

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/406889139/free-spins-coin-master-without-survey-game-hack In PDF document text
    • https://www.omgtours.com/images/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.omgtours.com/images/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • https://www.omgtours.com/images/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.omgtours.com/images/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • https://www.omgtours.com/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://www.omgtours.com/images/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003b5e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3B5E 25476 bytes
SHA-256: 8db58f282b2badca7b0dfed768298fd2d988f8a14492c948524dea1c511a428c
font_01_sfnt_off00007660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7660 3192 bytes
SHA-256: abd768ad059d21f7ab7140442ef542ebbb5c2615000e77be1af39ceb4ffb8aac
font_02_sfnt_off00008190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8190 9036 bytes
SHA-256: f5842ef8f016b58b62e6413fdf0e28ff6252d153ecd04ca9092930ae5e02dab6
font_03_sfnt_off000097ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97AC 18684 bytes
SHA-256: ad7fa04790fc34b76c8e1b16c403c61c32ceaee032d5a8afb0071baf0a254118
font_04_sfnt_off0000bad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAD8 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0