Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43834ffd465ae49…

MALICIOUS

PDF

51.2 KB Created: 2021-05-14 21:20:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 90a2a0c8a443d695e4d117662d2aab60 SHA-1: a135e3df603a5689a4c26218cad1cf32772834dc SHA-256: e43834ffd465ae4909a6ab074ed53b3fc9e6802bc17f6bb8095484074a7ddc2b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains heuristics indicating it's a lure for game hacks and links to known malicious redirectors. The embedded URL, https://netcdn.xyz/app/406889139/moonactive-coin-master-free-spins-game-hack, is directly associated with this malicious redirection. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit user interest in free in-game currency or cheats, leading them to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9348

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/moonactive-coin-master-free-spins-game-hack In PDF document text
    • http://io24.com.ar/images/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-hack-roblox-to-get-free-robux_GM431946152.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_003_off00004fe6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FE6 34456 bytes
SHA-256: b984bc267e9d2d16556b1c8ef6c9bebf795e886778f6e7b55b619a247a11ea4d
font_01_sfnt_off000094c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94C9 7332 bytes
SHA-256: d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d
font_02_sfnt_off0000a6e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E2 18000 bytes
SHA-256: 607e24879c86e77aea2ecea8189ce1ac53cb07a44b728ea7b5016cea096443a5

Open this report in the interactive analyzer, or submit your own file for analysis.