Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3c61340374eddac…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 15:34:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1167077207a73ecd1f57e7289718a301 SHA-1: 51c828084bcff99fdb71956c9536aaa1c60469c3 SHA-256: a3c61340374eddac7e9899af9aad7ed0bdf8fca57494497c896577a89778b700
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 0.9980

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 http://netcdn.tw/app/431946152/roblox-free-models-game-hack PDF link annotation
    • http://perpus.unpam.ac.id/repository/how-to-get-free-robux-nicsterv_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/dll-hack-for-roblox-assasin_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-retrieve-a-hacked-roblox-account_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-roblox-alternative_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/body-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/base-raiders-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/500-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/haktuts-2021-coin-master-free-spin-link_GM406889139.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_off00002cba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBA 22424 bytes
SHA-256: d1fe19950b57d8140ce0623ee5a0c4ac85eace3aa4cc076076675fdcfbf70406
font_01_sfnt_off00005ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC5 19020 bytes
SHA-256: 1b598ccfeb588c2751fdfa1bda46444779bdb133af401acc35bca94fed5912af

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