Malicious PDF — malware analysis report

Static analysis result for SHA-256 e13c8b0be4b3f368…

MALICIOUS

PDF

45.0 KB Created: 2020-08-08 23:54:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f83c0ef8ac4a0303d439449ed4947834 SHA-1: 13d3174e01f988ac7206ab787788c98db94b9406 SHA-256: e13c8b0be4b3f3685a15fcb5a4057f91f212b9d1e7edc361b43dcb3ccc0a789e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=inhalation+de+liquide+amniotique+pdf'. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence for the attack pattern.

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=inhalation+de+liquide+amniotique+pdf In PDF document text
    • http://files.drewshanefield.com/uploads/1/3/1/3/131382955/583021c.pdfIn PDF document text
    • http://files.sueannecelebrant.com/uploads/1/3/1/4/131437351/26ff42c.pdfIn PDF document text
    • http://files.artbydodie.com/uploads/1/3/1/8/131872149/gosivivebarixagoj.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/1/0435/4346/2037/files/george_bridgman_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/tipenesupibuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4684/0994/files/esterification_of_carboxylic_acid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6912/8354/files/43734213265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/87876879130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5823/7333/files/10x20_shed_plans.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/1/0428/9835/8432/files/memew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/dupetirarajaxegunejikiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3098/4357/files/jerazubukebakumazosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1694/3778/files/23514922112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/88694658711.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_off00006ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA2 5072 bytes
SHA-256: f963b3950802220919161cfa1a9c2d3ca2df7717638de0f2688417acc2b575bc
font_01_sfnt_off00007fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBD 11736 bytes
SHA-256: 4c3c536bc51c49306622674fa0601322ae9f2bc8d30ce053b481474bd7a0ae8a

Open this report in the interactive analyzer, or submit your own file for analysis.