Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7543c3892b89024…

MALICIOUS

PDF

44.0 KB Created: 2020-08-25 01:06:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ff0cf61218d6843309fb90419f71fc8 SHA-1: 599d8e8d4ad57999e67dc7ccc835402a045dbd92 SHA-256: c7543c3892b89024f4e4a075a78ed1780eb9bc4d7cb5420d2a5d7f3262fe9b2c
194 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many hosted on Shopify, forming a link farm. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. This suggests the document's purpose is to direct users to malicious content, likely for phishing or malware delivery. No scripts were extracted, and the document body was largely unreadable binary data, limiting further analysis of the specific lure.

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=jinja2+get+template+filename In PDF document text
    • http://files.committedcommunitymentors.org/uploads/1/3/1/8/131871730/02911e44baaa.pdfIn PDF document text
    • http://files.allenhurstapts.com/uploads/1/3/1/4/131482892/646d2043856.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/1/0433/0386/2440/files/nudomidodemef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4531/3941/files/zunadogemumazoxig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3137/8590/files/zukaleletu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8307/9584/files/wosipuwepigerolewemelebak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6231/3631/files/sasizusijazufajofomazot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/36641070798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3549/9418/files/xuduwejulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4843/5861/files/79576494092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0416/4257/files/tubuvugofomiredug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2154/1271/files/31332937021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8857/6661/files/cushman_turf_truckster.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8419/3697/files/virgin_australia_app_for_android.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDE 3572 bytes
SHA-256: b0f824a3b50ea13da7582406209a0ae12c49435babca83e29b3adf3e4294a893
font_01_sfnt_off00006c85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C85 5144 bytes
SHA-256: 0a95c88f5ee93ababbbaa521863933a66fc48bb74c8bc1abc493c8fc2355ff6c
font_02_sfnt_off00007e05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E05 10640 bytes
SHA-256: 16f3038ed89df71ce15d4d2211cddda33a963b6f7ffaf5347d662ec0172e8cb3

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