Malicious PDF — malware analysis report

Static analysis result for SHA-256 120e9e1293409844…

MALICIOUS

PDF

49.1 KB Created: 2021-06-09 12:28:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a19814ffe206fe64bd48586fb2ef221c SHA-1: 0959fd872cdbd47125e18d343872f7eef863f99a SHA-256: 120e9e1293409844de84eb1985d66f8b6ed1f5457067b277cca3f1822b87dea2
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a malicious redirector link disguised as an offer for free in-game items, aiming to trick users into visiting a potentially harmful website. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the heuristic firing for a malicious redirector strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 3

  • 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 https://netcdn.tw/app/431946152/gamekit-didn In PDF document text
    • http://itc-nekretnine.hr/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/wurst-download_GM479516143.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-hack-without-human-verification-india_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-robux-kid-friendly_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52FA 25340 bytes
SHA-256: a8bda41bdac18c1001c0d0d79ee3179a38fe147184d5fa720ef7d2771dd4118e
font_01_sfnt_off00008dfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFC 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000097e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97E7 19992 bytes
SHA-256: da38c398221e937ec5c09668675b2ad8713114b788ac63762dcc188ecb59590c

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