Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ea58b7b7b5ef7f6…

MALICIOUS

PDF

40.1 KB Created: 2020-08-21 02:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f8d1f930f92246dc05c9fd8445c374bc SHA-1: 570424b482fad13d7e5752887470968efc0148ff SHA-256: 5ea58b7b7b5ef7f6cfec8be1f996c5f99ed6f04351a21a59393d26e98b68f2f8
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service ('ttraff.ru') that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and appears to be a lure for a 'car battery buying guide'. The presence of multiple PDF links and a malicious redirector suggests an attempt to drive traffic to potentially harmful content, likely as part of a phishing or scam campaign.

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=car+battery+buying+guide+australia In PDF document text
    • http://files.jbarneslab.com/uploads/1/3/1/4/131406605/0af900.pdfIn PDF document text
    • http://veduvudix.yew360.com/uploads/1/3/0/8/130874330/1078685.pdfIn PDF document text
    • http://lajilufaf.pasadenapetshospital.com/uploads/1/3/1/6/131606490/kitamukujidewek-nizis-zijijipuso-notezi.pdfIn PDF document text
    • http://files.mycorporatecounselor.com/uploads/1/3/2/7/132740880/visukato.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/1/0434/2104/0792/files/22687514725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/22327595416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0319/6070/files/ap_grama_sachivalayam_jobs_2020_notification_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/wumadezef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8579/0365/files/47656145512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/17064322437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4648/3606/files/pukaredusanexudekuzome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/netufive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5637/3659/files/begegotovelolutafiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1587/2423/files/24425263753.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_off00006051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6051 5140 bytes
SHA-256: 346ba387a6cffde0b3e6f6a6463316a3b166c1f89683815800e19970b51be806
font_01_sfnt_off000071dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DD 9824 bytes
SHA-256: 517378886d548cb1a21f35cd845642ccfe790773a48383ca9a404de1e2a4b7bc

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