Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a96cb339472526c…

MALICIOUS

PDF

44.1 KB Created: 2021-06-03 05:01:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: eb8ded9fbca715a4d45a1668cb109a07 SHA-1: 20640caa90da2ebb51cb5801d40c5dc7a909919e SHA-256: 5a96cb339472526c6e3749f172795fab6577c4e587d013302a292b74a3534c75
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.online/app/479516143/minecraft-hack-download-game-hack PDF link annotation
    • https://vierabyragazze.com/upload/files/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/login-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-tiktok-app_GM835599320.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/pubg-uc-94fbr_GM1330123889.pdfIn PDF document text
    • https://discord.ggIn 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_004_off00005089.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5089 24848 bytes
SHA-256: 5ae3507f73c7fe7207f370ff6f921674ca48105013ea99dc72f50a3df64e0bfc
font_01_sfnt_off00008954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8954 18460 bytes
SHA-256: 1986b917a50867421859734d90e96ce19f33df6ec3e97c13366e475f22860bb7

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