Malicious PDF — malware analysis report

Static analysis result for SHA-256 e497bad013ce96a0…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 04:26:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: f7b86790f3c6738a30d5b79828eade35 SHA-1: 14bb2bebb96bea3838e9e1d3bee7f111be4f0999 SHA-256: e497bad013ce96a02074657701e64758df22c038a5683adff6df96ab4f3aed08
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The heuristic firings confirm these links lead to known malicious redirectors. While no scripts were extracted, the document's primary function appears to be social engineering users into visiting these malicious URLs, likely to download further malware or engage in scams.

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/431946152/roblox-apocalypse-rising-hack-game-hack In PDF document text
    • http://lib.teknik.unimal.ac.id/repository/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/hack-de-roblox-dinero-rozitizens_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-robux-for-tablet_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-free-cool-marshmello-shirts_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-to-get-free-300-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-roblox-promo-codes-2021-july_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-hack-ninja-legends_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/www-robux-us_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-phantom-forces-rank-hack_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/with-pokemon-go-free-download_GM1094591345.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-how-to-get-free-bc-no-scam_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/skater-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-to-get-free-obc-and-robux-in-roblox-working_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCF 22112 bytes
SHA-256: 5db2146fb823d1378403699df3f95f45a705a6eb5f971a38b5920824907b6849
font_01_sfnt_off00005fb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB0 19132 bytes
SHA-256: 89b3c6f78ad9a233c40c5814635efca93e06110ce3843f8feb3308563d35be6a

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