Malicious PDF — malware analysis report

Static analysis result for SHA-256 35d725f084bf0e68…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 11:28:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4e394ca807bca6d55ff13b357600f395 SHA-1: 64fb4f02908d1149de3dae455fb693140b90e0fb SHA-256: 35d725f084bf0e68fe79cc97b18000f07403a272c1c856648e093bb3e2e31dff
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link leads to 'ttraff.ru', suggesting a phishing or scam attempt. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files, likely for SEO manipulation to increase visibility. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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=kundli+matching+app+for+android+phone In PDF document text
    • http://files.picknrollnconnect.com/uploads/1/3/1/6/131606552/1950148.pdfIn PDF document text
    • http://files.connorshillgospelhall.com/uploads/1/3/1/3/131380771/navefuribeduzin.pdfIn PDF document text
    • http://kireb.viviembellish.com/uploads/1/3/0/9/130969483/buxoziritoj-latejapinef.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/1/0437/7932/6103/files/fatejur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/13425294346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/piridakujogukalulam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4327/3369/files/37182809523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9358/9142/files/wazesagugezefekuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2579/1138/files/apocrypha_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38970143778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3398/4162/files/56329642017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/aiag_spc_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/viritasuraxak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/61543022056.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 6

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_off000061f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F3 5360 bytes
SHA-256: 8ff12999f050bc234ecd681d15e2eb7629e8ebd4dbc0223263a2b8a11e640524
font_01_sfnt_off00007403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7403 10136 bytes
SHA-256: f837101bbdfa333b4592e7b00235f5774656410c3c966b2dd0c1a6ca7874d08c

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