Malicious PDF — malware analysis report

Static analysis result for SHA-256 39bf72297dd2b65d…

MALICIOUS

PDF

41.2 KB Created: 2020-08-02 01:35:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e04ae17e27a58f4b292eff9d1f342cd0 SHA-1: 543416244322fb5c38cd0b7fdeefd9261ef3572b SHA-256: 39bf72297dd2b65df62239569d785c157e8924dceef7053d6557fd418a20fb24
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=forum+signature+maker'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be social engineering via a deceptive link.

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=forum+signature+maker In PDF document text
    • http://files.clarksmithphotography.com/uploads/1/3/0/8/130874204/zadexoxemodifef-golozazubizop-nifemavevug.pdfIn PDF document text
    • http://files.jonclausart.com/uploads/1/3/1/3/131382808/woxoziw.pdfIn PDF document text
    • http://files.jaxntheboxtattoos.com/uploads/1/3/2/7/132710762/denifuvowujedun-mosofexolalojut-jedamulimuwu-wadorixade.pdfIn PDF document text
    • http://files.phonomenon.net/uploads/1/3/1/3/131379828/6c3f197cea6.pdfIn PDF document text
    • http://files.tiga-project.com/uploads/1/3/0/8/130874110/rafakusovojiga-zizezog-mipas-rulezilax.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/1/0431/1898/5370/files/60959901264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1189/7504/files/78706418134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/33842119839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6389/2376/files/genud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86399573169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/27080338495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/16262929978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0760/5923/files/investments_bodie_kane_marcus_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6302/5559/files/ergo_line_tanning_beds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3189/4944/files/27278765036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2094/9416/files/sudunebebuzibutalesesaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/xexilikulivaraxopusive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3501/6863/files/36553788745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7213/5074/files/53786795839.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_off00006391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6391 4992 bytes
SHA-256: f3e7b10cdf428e2995f22a0be484161166fc70cec627d3bdeb9ccf97265be8a1
font_01_sfnt_off0000747e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x747E 10352 bytes
SHA-256: a80d4e01b1427574e1ddb57f2757c6d3d7080f6a9c6d37b706376271ea13959f