Malicious PDF — malware analysis report

Static analysis result for SHA-256 53a2884c245e79f9…

MALICIOUS

PDF

33.8 KB Created: 2021-06-19 16:35:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b48ee79fcde4eb4f6410e333abadd090 SHA-1: fd5c6c88483bfa2a27e215094651384b2970ab94 SHA-256: 53a2884c245e79f9c3c2ce4b07b5fee019d592cf15519932226aab85dede44fd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector pointing to 'http://netcdn.co/app/431946152/roblox-mad-city-money-free-game-hack'. This lure is designed to trick users into believing they are accessing free game hacks or generators. The presence of numerous similar-looking URLs suggests a phishing or scam campaign. No scripts were extracted, limiting the analysis of further execution chains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-mad-city-money-free-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/tiktok-free-to-watch_GM835599320.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/girl-hair-roblox-free-watch-online_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-bloxburg-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robux-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-daily-link-game-mod_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-roblox-real_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/doodle-jump-free-roblox_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E3B 21680 bytes
SHA-256: b02a377a175ddb4b9b6aee9ab76a30a0e91656d349f64876e4202464e81a2127
font_01_sfnt_off00005de4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE4 19424 bytes
SHA-256: 4d3ca5d46008fd7995a51e1e62a2d00c536916242eaa592184b07ec5cc519577

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