Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb6b1e7c714725d4…

MALICIOUS

PDF

56.9 KB Created: 2020-08-15 08:17:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 207c89348e28d858d14825f7a04e9aa3 SHA-1: 003d4b3530337c754dacffba127713f45032f5b9 SHA-256: cb6b1e7c714725d4eec104724ce87994be03fd5b5a84a73c257a8c0b4381a5df
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector hosted on 'ttraff.com' which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Wells Fargo' and 'false credit reporting', suggesting a phishing lure. The presence of a link farm and the ML classifier further support the malicious nature of this document. The primary attack vector appears to be social engineering via a malicious 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.com/pify?keyword=wells+fargo+false+credit+reporting In PDF document text
    • http://files.trollteam6.org/uploads/1/3/1/4/131407112/zuzegutukag-xodokofovejam-dakevujotese-fiwaleburajugog.pdfIn PDF document text
    • http://files.fishinglakefirstnation.com/uploads/1/3/0/7/130775645/6766847.pdfIn PDF document text
    • http://jikis.figmentsandphragmites.com/uploads/1/3/0/7/130740019/3271673.pdfIn PDF document text
    • http://files.intentionalpathwellness.com/uploads/1/3/1/0/131070374/8182052.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/1/0430/0665/6665/files/liwowejepeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/18468297266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1972/1115/files/43116174851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/german_vocabulary_lists_by_topic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7141/4173/files/bezubunukebajifuvigoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8634/7417/files/bible_in_english_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2926/4546/files/84702892579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5156/4707/files/ad_d_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/calendario_laboral_2020_castilla_y_leon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9455/6320/files/88825116317.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 2

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_off0000a01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA01E 5336 bytes
SHA-256: 1b5d71aacb9209c2dee05e31158ff9a0f48c1e64ec4cddf70516d2f9476d1805
font_01_sfnt_off0000b25f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB25F 10520 bytes
SHA-256: 6aa01c5163c3db0c671e8681f29062e037bff0973d8c191659cd4f373ee4b0cd

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