Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e170ec08ffb91c3…

MALICIOUS

PDF

39.4 KB Created: 2020-08-01 16:55:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c889bf24c98d39319087bb9ee9b8a897 SHA-1: 313af9f3b05e2bbb7ed656e7d6170f1d384bfa4e SHA-256: 1e170ec08ffb91c35ce53082835e8326119ec438cc66b77ae11dbba123bc71fe
194 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=desert+silento+lyrics'. Additionally, it contains a large farm of external PDF links, many hosted on Shopify, suggesting a link-farming or SEO-manipulation tactic to distribute malicious content. The ML classifier also strongly indicated maliciousness.

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=desert+silento+lyrics In PDF document text
    • http://files.lionpridebands.com/uploads/1/3/2/6/132681576/5273139.pdfIn PDF document text
    • http://files.jaclynbowie.com/uploads/1/3/0/7/130776757/4968512.pdfIn PDF document text
    • http://files.whstheatre.com/uploads/1/3/1/6/131636984/gotusufo-tofutitoramal-miwulonojawulej.pdfIn PDF document text
    • http://files.en.220stopinjposevno.com/uploads/1/3/0/7/130739284/sujexisebatelil.pdfIn PDF document text
    • http://files.shirleyanneceramics.com/uploads/1/3/1/4/131438501/gerenopij.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/1/0437/1628/0475/files/suzodezupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1552/0935/files/12580559062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jewepogepavab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6544/9371/files/34870270943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8049/8841/files/fuzokus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8080/1701/files/wulodagame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34515707504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9083/6645/files/fabipixojulone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/kafunapox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4621/4564/files/tupelikosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5858/4986/files/31978205125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5512/8477/files/46364483753.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 7

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_off00005e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E19 4684 bytes
SHA-256: 2ff08a8d03cc64fdc5a76912d3f567548bbc132b2fc0a48ccbc80dbc03272a62
font_01_sfnt_off00006e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E28 10224 bytes
SHA-256: e280262f779b1e1ba1cd89b3cccd9fde23e66e87017f12459ac0833148b6b3f1

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