Malicious PDF — malware analysis report

Static analysis result for SHA-256 445c59694544771f…

MALICIOUS

PDF

81.8 KB Created: 2020-12-22 12:13:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: e73d9bb6e6c3bc56053c7d4b8f1b9764 SHA-1: af8eacc3eff337fdfb9041cadab2c220042a7087 SHA-256: 445c59694544771f0c47c805f2bf155e69fe5a69e7c0fd63e9a86c5b5c711bce
254 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external websites, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though obfuscated, contains text related to a game guide, likely serving as a lure. The presence of multiple PDF links and a critical ClamAV detection strongly suggests malicious intent, likely for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://cctraff.ru/wb?keyword=lol%20zed%20aram%20guide In PDF document text
    • https://wetejitaxazis.weebly.com/uploads/1/3/4/3/134306742/wezewewemubatob.pdfIn PDF document text
    • https://pugofadunenem.weebly.com/uploads/1/3/4/7/134727284/talod-nipisomawuf.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9641fe02-c352-4bb2-8f46-3263b3340169/31549752105.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61fcf777-7df7-4bfa-8128-182b7fc46fd3/how_to_smoke_a_tri_tip_on_a_traeger.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/52740358957.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/8990500501.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/mikojuludoma.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7a84402915d4a16f9ca82/t/5fcf5c79556296156150ecde/1607425145685/lusedisosox.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc791041a9b7f6479384afc/t/5fd0b86cfc93c51d16e4fdad/1607514221286/nomuladusolugonad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1743e192-5565-4693-b16b-76c54a0361a7/70627828653.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/boruwinet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fde96712dcd53187f20392d/t/5fdf7b466a6ad7222f2ccf31/1608481607966/95028666307.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e89d3ee2-8e92-4731-ae15-f42ffce9a190/mavalunumidawegogopaz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc192dc0b6b03258f3a55e2/t/5fc94f3e86f27b0016efb6cb/1607028542134/pen_pineapple_apple_pen_game_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/letasoft_sound_booster_free_product_key.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000e2b4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xE2B4 15340 bytes
SHA-256: 306f8ce0374d934d7c37306cab03a3285687abc68596f0f0849abffe84514eb7
font_00_sfnt_off0000d1f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F1 4956 bytes
SHA-256: 614a3f4a8569f211dce8844a5ebee665411f54449277805bcb21e77c2286e472
font_02_sfnt_off00010d59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D59 15020 bytes
SHA-256: 418583947d2e26378a1b2f7754a3934d45649c68420a667b6fa9c9d49d4ea379