Malicious PDF — malware analysis report

Static analysis result for SHA-256 896257299d986032…

MALICIOUS

PDF

45.9 KB Created: 2021-05-11 01:01:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 708950d4c2d9098b7455c8cc3274c384 SHA-1: d740661a3ffb716f2401653a2e6bb7ad4520fdc0 SHA-256: 896257299d986032ac33f534f36a509044b7781e3f4ba30d397f8c370f5ebf81
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The heuristic firings indicate that these links are designed to lure users to potentially harmful websites. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest a phishing or scamming attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/scary-larry-roblox-game-hack In PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/wurst-commands_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/roblox-generator_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/android-coin-master-3433-apk-hack_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/robux-generator-com_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
font_00_sfnt_off00004a69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A69 27104 bytes
SHA-256: 16c5adc15ea768334bc38cf9ada2ab0b65753226befc9ed4eaf7d2a8a82e4640
font_01_sfnt_off0000873a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x873A 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00009124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9124 18192 bytes
SHA-256: ba27f4eeb4bcce8663c8a9babab3f494db8d3d97cbaf637729f4d360a8d104c0

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