Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cfb4f5c0c79853b…

MALICIOUS

PDF

41.7 KB Created: 2020-08-21 15:26:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd0e28e2ca729299e3f568bef09767d2 SHA-1: 7686900d23cc1367fcd3af333203e4f9568de882 SHA-256: 7cfb4f5c0c79853bd684cd4bc462ee4e705c2d41a27ab0d5afcb5f3a1fdbaea5
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to an 'emergency contact card template'. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to drive traffic to the malicious redirector. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links.

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=emergency+contact+card+for+wallet+template In PDF document text
    • http://files.summasportswear.com/uploads/1/3/1/4/131453807/118d8e22a22790b.pdfIn PDF document text
    • http://files.photobookmarks.net/uploads/1/3/1/8/131856456/3c3a4f12.pdfIn PDF document text
    • http://files.frederickdeknatel.com/uploads/1/3/2/6/132695454/6605806.pdfIn PDF document text
    • http://files.photobytrish.com/uploads/1/3/0/7/130739312/7284708.pdfIn PDF document text
    • http://dofajut.mattmonfettlaxcamp.com/uploads/1/3/2/6/132696067/2390608.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/1/0428/9835/8432/files/nanejixiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/bugelor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4343/0305/files/mesin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/merge_all_sheets_excel_vba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8151/5673/files/54975525922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/how_do_you_reset_origin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2620/3302/files/pewiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/futazagep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6350/9141/files/algebra_2_solving_equations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3673/7699/files/stanford_roommate_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8440/5153/files/rig_veda_samhita_in_sanskrit.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F3 5448 bytes
SHA-256: 1ab9e5437ac2968240bd6b165e44da3515ce8a1532df07d683be8ce9184f9a12
font_01_sfnt_off00007573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7573 10668 bytes
SHA-256: 735b943c52f8fcdc8c80dc3d8f2c4987ffc9ae0547ba8da339d442dddc102b64

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