Malicious PDF — malware analysis report

Static analysis result for SHA-256 44042076680a33ce…

MALICIOUS

PDF

40.3 KB Created: 2020-08-10 14:22:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6534dc6474f45304dbe85f6c47cf8355 SHA-1: 5f3bcc98d757fa26168f468a654cfd62f1668253 SHA-256: 44042076680a33cedc75e7fbc69bcae8c4970352e8256031de7b43795adb5a59
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO spam and phishing. One critical heuristic identified a link to known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=converter+chrome+html+document+to+pdf+online+free`. The document body, though partially corrupted, also contains this URL and other links, suggesting a lure to a fake converter service. The presence of multiple PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking for 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.ru/pify?keyword=converter+chrome+html+document+to+pdf+online+free In PDF document text
    • http://dojuke.wildgingerdaycare.com/uploads/1/3/0/7/130776078/b06561278.pdfIn PDF document text
    • http://files.shandryntrumble.com/uploads/1/3/1/4/131413362/xixegapejawepuro.pdfIn PDF document text
    • http://wavafunob.sell-local.co.uk/uploads/1/3/1/4/131438641/2aeaef4de2d.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/1/0438/1474/8322/files/hello_my_old_heart_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/50482365107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/jatov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/jazupopixuxotaxitenora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1466/7934/files/gilevivozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vidabuvuwegorowomilamum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/lunasililemiwusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/vavatisirujofek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/fesabokosaravinovow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/xipofumopikalogasad.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 3

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_off00006114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6114 4972 bytes
SHA-256: 298f53e463b60b571bc6c9e63a33572cd0f9d00b024c5f23c742162930650813
font_01_sfnt_off000071db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DB 10032 bytes
SHA-256: 3373253af5df6918b7eb703b632f3fbd9e8ed619839ac52bfe1f20d9d96e35d7

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