Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eb97598244dd369…

MALICIOUS

PDF

105.3 KB Created: 2020-07-28 16:29:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3d0cd8961e7e788d3e3543416ca538c SHA-1: 373ac76c8b5eb8c65c1604b69c72a359bba1dddb SHA-256: 5eb97598244dd3691014e4dd252113917a7f02af399713acead3d8aad1a8406b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. This suggests a link farm designed to obscure the final destination and potentially phish users or distribute malware. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure and embedded links are indicative of a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.cc/pify?keyword=online+games+addiction+pdf In PDF document text
    • http://files.aprautobodys.com/uploads/1/3/1/3/131381722/verafugaxe.pdfIn PDF document text
    • http://files.thelodgeofstgeorge.org/uploads/1/3/1/3/131379439/wawegigo.pdfIn PDF document text
    • http://files.ftcroboticsedina.com/uploads/1/3/2/6/132696465/5510022.pdfIn PDF document text
    • http://files.lenaherveybaycelebrant.com/uploads/1/3/1/4/131483249/galekamedudupuzexa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/23493725146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0932/5730/files/98612062861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/45608080136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/xodawefosivagas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/baguvemoveka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/45615116075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2929/0390/files/tudemewituped.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8466/1414/files/83129877015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2881/5783/files/tibusagon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/1718557722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2331/9715/files/41701943577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7279/0427/files/xulelij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/remixejotifolufer.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15503 3344 bytes
SHA-256: 207298e2e8ac0b0db16d9466971c46e8a29d2b97e6a5e4756d4cff1930f72deb
font_01_sfnt_off0001610b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1610B 5192 bytes
SHA-256: 8d71da3e299baf417645085e46a8d21412bf0224f544518311503b77130c9737
font_02_sfnt_off000172a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x172A6 10620 bytes
SHA-256: 314668f453f3a2b3f87c395eed91b75d64d3edb07e0897b4c05c0f6c0615aed3