Malicious PDF — malware analysis report

Static analysis result for SHA-256 efe0bb289c7cb658…

MALICIOUS

PDF

49.7 KB Created: 2020-08-02 21:28:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 867577c707427c3c3e97381965f47e94 SHA-1: eda1d4c87c026468d66191e9a10cc416e2af27c9 SHA-256: efe0bb289c7cb658205aef332be21fe1dfe06998dd72accc166ab253846746df
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links, https://ttraff.ru/pify?keyword=what+is+origin+in+git, is identified as a malicious redirector. This suggests the document's purpose is to act as a link farm, potentially leading users to malicious sites or further stages of an attack. No scripts were extracted, and the document body is heavily obfuscated.

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=what+is+origin+in+git In PDF document text
    • http://files.hansmerklein.com/uploads/1/3/1/4/131407423/loladezunifopiroke.pdfIn PDF document text
    • http://files.capital-homecare.com/uploads/1/3/1/4/131407112/c43bb5a001d1339.pdfIn PDF document text
    • http://files.franciscoriosanderson.com/uploads/1/3/2/6/132681392/ecab6040a6.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/1/0437/4695/1319/files/venagiwinolugepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/ludefexirotoriri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1283/2931/files/pisig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/23620657586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4836/9309/files/rizemuzalajixosojinupobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/kidutemunikunotonusigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81274949660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1517/5335/files/93360741450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/36765618845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/natoziwewot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1615/1455/files/luzaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7188/8803/files/98675523903.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D15 6896 bytes
SHA-256: 32d2003e987b75e5a6371576b3a8261762fd3633a570cf843b68ca4dd41adab6
font_01_sfnt_off0000849d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849D 4928 bytes
SHA-256: 2affe8f9c5731e480d499205d5a5267d8ab04719a11f69c08769a2474bc70af9
font_02_sfnt_off00009566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9566 10676 bytes
SHA-256: e128f653611fd94f205e877e966dbeaa8aee76db4b0bdcf1d0c34a761e7eb4bb

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