Malicious PDF — malware analysis report

Static analysis result for SHA-256 94d308a260672c84…

MALICIOUS

PDF

40.4 KB Created: 2020-08-17 03:29:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 080ec7794cb986dc94625ffd61627a89 SHA-1: ff591dfff531577ac74b595a490b84d54b305140 SHA-256: 94d308a260672c8424c945a1c01737d2a0cb536aa2e6912176c9108a03cfadcc
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a free antivirus download. The document also includes a large number of links to external PDFs hosted on various domains, many of which are benign but contribute to a link farm. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for user redirection to malicious 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.com/pify?keyword=avira+antivirus+for+pc+free++offline In PDF document text
    • http://files.allotmentphotogallery.com/uploads/1/3/1/3/131384635/bubimobalojo.pdfIn PDF document text
    • http://files.thevikinglawyer.com/uploads/1/3/0/7/130738969/xofilumanofat.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/1/0431/5050/8181/files/sour_grapes_story.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1648/7065/files/28303673614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/3867429044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0520/files/80884030175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2224/5273/files/wovododetomar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8054/8503/files/kerovefatamubaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2066/5510/files/rexuzef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/50631092437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/furetisinudagej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8787/9580/files/ladagisaminidananupuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6891/4838/files/4210245154.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 4

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_off00006038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6038 5060 bytes
SHA-256: 3234b8b44fae110815096f16a1a9b0cbbce24a1efa0393495229df2be6db43e7
font_01_sfnt_off00007181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7181 10376 bytes
SHA-256: dc0787ac4c46afd6434db114b893ef173ac38afe73299ff06203e69c855bac1c

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