Malicious PDF — malware analysis report

Static analysis result for SHA-256 2573e6ba5238c0c2…

MALICIOUS

PDF

47.8 KB Created: 2020-08-04 09:13:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 31f7bc8ec8957b9f41f891d0f1e505b7 SHA-1: e96ab0016b21f1d7c4a3629528bc234faebc7da2 SHA-256: 2573e6ba5238c0c2e330b61b85d9687623016c3b402434566231ef6cafb6c371
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic indicates a link to known malicious redirector infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL. The presence of a large number of external PDF links, many hosted on Shopify, suggests an attempt to manipulate search engine rankings or distribute further 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=faktor+penyebab+urbanisasi+pdf In PDF document text
    • http://files.topqueensbeautythrone.com/uploads/1/3/1/4/131413222/pawoxav.pdfIn PDF document text
    • http://files.evenforonenight.com/uploads/1/3/0/7/130776131/favaxuw.pdfIn PDF document text
    • http://files.annagalatirealtor.com/uploads/1/3/0/7/130776718/979473.pdfIn PDF document text
    • http://files.garlandcrowns.com/uploads/1/3/2/6/132680796/49c5fe8b98513.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/1/0430/2556/3799/files/wamufogagukotelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/18159063048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/vesitisovivituvedeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3771/0744/files/xarivozexerekawuxoxavubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5788/2022/files/fozorepizizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/bizesuvotom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/febipak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8280/9508/files/27159806378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/abbreviation_of_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/ff14_act_not_showing_dps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5823/files/muxefuvewuxudebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5965/files/magufesalemepukakonezaj.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_off00007ce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE1 5264 bytes
SHA-256: ca0b1c14ae1e85432a10201c6b7dc0d3a13e2d7011a6e623d2483a73c62feab6
font_01_sfnt_off00008edc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EDC 10336 bytes
SHA-256: 3aecb487264cebc73cc8441a654484887ede428e83d9096a7ece6abad85b0c83

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