Malicious PDF — malware analysis report

Static analysis result for SHA-256 917639117f3c7c55…

MALICIOUS

PDF

42.3 KB Created: 2020-08-08 00:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64be995841191ab1e92b58753d888186 SHA-1: ba4ee339c04ed4dc24b1ae9674dc8d0a84222c89 SHA-256: 917639117f3c7c5565856aaa35929916bb5a798e03bb9b75009ff9fa18c00280
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with one heuristic specifically flagging it as a 'PDF_SEO_LINK_FARM'. Another heuristic identifies a 'PDF_MALICIOUS_REDIRECTOR_LINK' pointing to 'ttraff.cc'. The document body, though heavily obfuscated, also contains references to these URLs. The primary attack pattern appears to be a link farm, potentially for SEO manipulation or to distribute malicious content via the redirector.

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.cc/pify?keyword=best+pdf+app+for+ipad+mini In PDF document text
    • http://kazoluj.olvinfants.com/uploads/1/3/2/3/132302780/4889876.pdfIn PDF document text
    • http://files.meredithcarro.com/uploads/1/3/2/7/132712358/jagemuzemusa.pdfIn PDF document text
    • http://files.btccricket.co.uk/uploads/1/3/0/7/130740591/6101994.pdfIn PDF document text
    • http://files.hawaiistateptsa.org/uploads/1/3/2/6/132682040/dojirobodos.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/1/0432/8521/7436/files/water_pollution_in_bengali_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7047/8746/files/77752302378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1708/4833/files/inotech_dog_fence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/pereku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/vitafunofijevapidenaboze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/one_way_anova_using_spss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/puzodaregaxitawomukagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4573/2007/files/kerefugibegofetagol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/76998730325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/54289650326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/79293235539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/32822249678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/pdf_bestand_verkleinen_voor_mail.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_off000068b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68B5 5204 bytes
SHA-256: dad24f98a0dec8b3d89923aba554d732120e3220a7ef88e6ed9e1187f6166689
font_01_sfnt_off00007a58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A58 10024 bytes
SHA-256: e0f67f35c3cdc6ffcda837b1f8ed6406c67d402c076d8357a10492dc0927fc29

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