Malicious PDF — malware analysis report

Static analysis result for SHA-256 16a3e6e1d076070f…

MALICIOUS

PDF

40.6 KB Created: 2020-08-27 15:51:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9242779248bd0a6855afeae49a09a4fe SHA-1: d9274175514394b6e81438409b693ca581c48c95 SHA-256: 16a3e6e1d076070fb3310529019ea17f48318fcec294e850a0ad9e9692b27368
194 Risk Score

Malware Insights

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

The PDF contains a lure related to a "Verizon jetpack mifi 6620l external antenna kit" and embeds numerous links, many of which point to redirector infrastructure. The primary redirector URL, https://ttraff.cc/pify?keyword=verizon+jetpack+mifi+6620l+external+antenna+kit, is flagged as malicious. This suggests a phishing or scam attempt designed to lead users to potentially harmful content.

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=verizon+jetpack+mifi+6620l+external+antenna+kit In PDF document text
    • http://files.jrasales.com/uploads/1/3/2/6/132695732/kubulobopew-soruwewulitumo-pofebos-nijadusarenar.pdfIn PDF document text
    • http://pavelibag.mrwhatley.com/uploads/1/3/1/0/131070197/22b20ddb207f16.pdfIn PDF document text
    • http://pajefo.nowwwriters.ca/uploads/1/3/0/7/130739278/lofovoraza.pdfIn PDF document text
    • http://tujukuzof.eurekasally.com/uploads/1/3/0/8/130814328/bc42913285bc8.pdfIn PDF document text
    • http://files.21socialstudies.com/uploads/1/3/1/0/131070394/6b834ca.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/1/0436/0873/5907/files/calcul_bobinage_transformateur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8494/7357/files/83698422436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/labati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5032/4388/files/student_attendance_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0596/8537/files/dagugexuter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9028/0609/files/2742162739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7046/2883/files/guilloche_pattern_generator_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2022/2627/files/7783743184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2325/6999/files/37000705033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jepomosojavadoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/47684591322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/25978881176.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_off00005fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD3 5636 bytes
SHA-256: fb73079dda13d1d1199efc4559e9acd2a32434848a0efbb2ed699dcddccbb1a8
font_01_sfnt_off00007302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7302 10012 bytes
SHA-256: 925ed357e9619b4260820e8ce13574c2282dbcf04be266f8232332819173b98a