Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c05b44725b8985…

MALICIOUS

PDF

41.0 KB Created: 2020-08-13 14:11:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e69b20aee2f835a923a152f9fb19a575 SHA-1: 053d4044b014d2638780199c588eb67e18bc9666 SHA-256: 07c05b44725b89856da5813db3728c5fc77b84399d417990c4d99cd27bc771ac
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though partially corrupted, includes the same URL, suggesting a lure to download further content or redirect to a malicious site. The ML classifier strongly supports the malicious verdict.

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.com/wb?keyword=rhetorical%20devices%20and%20persuasive%20techniques%20worksheet In PDF document text
    • http://files.skyshedpodpa.com/uploads/1/3/2/6/132695438/tabeduvexu.pdfIn PDF document text
    • http://zuvowe.vhcministries.org/uploads/1/3/1/3/131398008/1937215.pdfIn PDF document text
    • http://files.wrkdojo-lowerhutt.net/uploads/1/3/0/8/130874063/fagomefoloxa_dosikevolosur.pdfIn PDF document text
    • http://files.boulderhomezone.com/uploads/1/3/1/4/131453193/tawagun.pdfIn PDF document text
    • http://files.getlylty.com/uploads/1/3/1/4/131406736/tubonumupuk-woxit-wipadirajo-kotigoxar.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/1/0428/2672/7580/files/86878549222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/amen_ra_s_age_inhibition_regimen_air.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6849/7823/files/polexeten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7197/7110/files/ejercicios_aerbicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8735/4270/files/jiromuneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0408/2851/files/biosynthesis_of_steroids.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0443/3308/files/object_oriented_design_concepts_in_software_engineering.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/10725584311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1805/0984/files/13435395691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/satavufovalugudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9357/3288/files/silasosovuxir.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF7 5512 bytes
SHA-256: b182bacf8a392e0e871b543dc7c3330e7a8b96cf4d3102e8994304e9bbd39b08
font_01_sfnt_off000072c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C2 10600 bytes
SHA-256: ef1500c2cf6a657eed799dc03b74fb37a4aa73f52531796173502b2e7f1a844e