Malicious PDF — malware analysis report

Static analysis result for SHA-256 e06dd5f2f0a907fe…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 22:11:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f50e7d63adce90d2bab299e28e4bea0a SHA-1: 0868b5da3c9081f5ebb7ab7c7059857a2371b20b SHA-256: e06dd5f2f0a907fe069d0c5c228ba1238120af70f5c3a4f5586aa340b232ea37
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to known malicious infrastructure, specifically targeting users with lures related to game hacks and free currency. The document body and heuristic firings indicate a clear intent to redirect users to potentially harmful websites, likely for credential harvesting or malware distribution. No scripts were extracted, but the presence of malicious redirector links is a strong indicator of malicious intent.

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.tw/app/406889139/free-spins-coin-master-march-2021-game-hack In PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-stuff-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/what-is-a-free-robux-code_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/fire-roblox-hack_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-roblox-cosmetic-codes_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/robux-giver_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/roblox-click-teleport-hack_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/coin-master-game-hack-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_off00003107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3107 22556 bytes
SHA-256: ad3970fa44f352313a31664444b51bbb8019f0a1a98b573fce28fa5a4bb35741
font_01_sfnt_off00006321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6321 18744 bytes
SHA-256: f992392ed04d58b53e0de1c6bbd6ac77b4f3b3aa4afbe9104984b67ade831bee

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