Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4cb632038beeacf…

MALICIOUS

PDF

35.2 KB Created: 2021-06-19 01:12:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 276387579598de56f09ca31c2232354f SHA-1: c0d6497072210ec803c10134a8708e6e97888577 SHA-256: e4cb632038beeacf3ab0f744a3139eefbad388321898b9da4286732373259b13
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to malicious infrastructure, masquerading as game hacks and free item generators. The heuristic firings confirm these links point to known malicious redirectors and lure users with game-related content. While no scripts were extracted, the document's primary function appears to be directing users to potentially harmful websites.

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-free-t-shirt-2021-game-hack In PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/telecharger-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/get-unlimited-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/pokemon-go-free-play_GM1094591345.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/pokemon-go-free-and-apple-watch_GM1094591345.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-bc-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-to-download-roblox-corruption-hack_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/nico-hacker-2-parte-de-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-hack-apk-download-for-android-mobile_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off00003130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3130 22404 bytes
SHA-256: 0da49fa1594afb5bdd28b99283ca6678c1ae39740726092603d1dcbe69e36400
font_01_sfnt_off00006314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6314 19476 bytes
SHA-256: 8873a208da336114d1dcb41b5c2b73479079fcc8b9d4773413634c5e4faa2235

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