Malicious PDF — malware analysis report

Static analysis result for SHA-256 713067c48bd444c8…

MALICIOUS

PDF

40.2 KB Created: 2020-08-20 13:07:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef79244e63c4ab6af6b51664b10f9c53 SHA-1: d439e9b406b2e01febc025cc289e0e0231dccbf4 SHA-256: 713067c48bd444c8ae88f7784dff6c5d9ebc348eb450470195c0e8b4be85e4ae
194 Risk Score

Malware Insights

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

This PDF document contains a link farm and redirects to malicious infrastructure, specifically 'https://ttraff.cc/pify?keyword=kels+assessment+form+pdf'. The document body and heuristics indicate a lure for users to download further content, likely malicious. 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.cc/pify?keyword=kels+assessment+form+pdf In PDF document text
    • http://kifujuwi.knowlogix.com/uploads/1/3/0/7/130776791/dofovomojaseluk.pdfIn PDF document text
    • http://kabak.chrisball-student.com/uploads/1/3/1/0/131070894/1672640.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/1/0431/6309/1112/files/70733816728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/odisha_b._ed_entrance_syllabus_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4676/2656/files/commandos_hinter_feindlichen_linien_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2583/1835/files/ncert_biology_book_for_neet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4962/2431/files/sefotamupoxabefodut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6350/9146/files/campana_sobre_campana_letra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3542/5944/files/zojaravarijilekomifolip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2143/4005/files/kogagumulifabokosadidita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5510/files/tavavibajoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0608/2717/files/10143701805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0878/files/63271712026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7396/1110/files/jisebomalake.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_off000060a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A7 5156 bytes
SHA-256: 44a54449d751e1e50cd16482120041f16b19fbbc858b512dfa715a1eb28087c0
font_01_sfnt_off0000721e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x721E 10008 bytes
SHA-256: 355b244e43ca5aa0a00df60261fe1e01523fe30062a1a76a596c12cb4cb59fc5

Open this report in the interactive analyzer, or submit your own file for analysis.