Malicious PDF — malware analysis report

Static analysis result for SHA-256 6973381016cbccdf…

MALICIOUS

PDF

42.8 KB Created: 2021-05-11 14:31:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0e11562aa1b6edad6f42386ce87b023e SHA-1: c932f6fc80e2cb21b50f42c3d51f19810de3fd9a SHA-256: 6973381016cbccdffaffcfab18c7d15ca34065450ebd3f78d8594f945ba19f78
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which links to malicious redirector infrastructure. The primary link directs to 'https://netcdn.xyz/app/431946152/free-2021-robux-game-hack', which is flagged as a known malicious redirector. Multiple other PDF links hosted on 'javisintlmedia.com' also point to similar game-related lures, suggesting a campaign distributing malicious links disguised as cheats or generators. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-2021-robux-game-hack In PDF document text
    • https://javisintlmedia.com/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/block-best-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-free-download-2021_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/best-free-minecraft-servers_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004865.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4865 25740 bytes
SHA-256: 8fe01c810a23c7f582b4fc51c04e1518b7e54582146072bec62417dbda2ea511
font_01_sfnt_off00008468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8468 18416 bytes
SHA-256: 24dd33113ad1920a4b79572916f2875f9d05bd64d95cc44e0cd438e20c1ad4df

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