Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd02a9e9a2879572…

MALICIOUS

PDF

37.8 KB Created: 2020-08-12 14:23:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c6b9372ae2ee8fa04da491d76baa037 SHA-1: 8ad0e7740baf3a78c0ebeb9d288e8749651283bc SHA-256: bd02a9e9a28795724c11dc545d1ea8f9ff2b464ee2af9e5a911d1134c82211be
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with 19 external PDF links, many hosted on Shopify. The document body contains the same malicious URL and a list of other PDF links, suggesting a lure to download more content. No scripts were extracted from this sample.

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.com/pify?keyword=download+mapa+mundi+pdf In PDF document text
    • http://files.heatherdexter.com/uploads/1/3/1/3/131384429/8017165.pdfIn PDF document text
    • http://bikafelaj.kops-keepourparentssafe.com/uploads/1/3/0/7/130776485/9283793.pdfIn PDF document text
    • http://files.sugarloafminisnv.com/uploads/1/3/1/3/131379312/kasazonuzijorus.pdfIn PDF document text
    • http://vajim.dacbuildingservices.co.uk/uploads/1/3/1/3/131383483/4200669.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0354/6533/files/apneia_do_sono_e_obesidade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2020/6758/files/felujinelifuzudogekanox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4629/6982/files/gavawujodujuzavilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8139/1514/files/kuxavajovemoleno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9888/0680/files/arabic_alphabet_and_numbers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9181/0717/files/fokefidavituxewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9087/0423/files/analogies_worksheet_8th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/lonudiroberodokifes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7618/1398/files/multi_page_photoshop_cs5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/79938374075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9900/4831/files/creative_servers_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/toraladomokipina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3876/7266/files/search_engines_information_retrieval_in_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2693/1099/files/69493578814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4597/6221/files/bach_well_tempered_clavier_book_1.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE5 4688 bytes
SHA-256: f8856220a739a3e80394159261890f7d53e021a8fb0a25dc2579e9ff1a55f948
font_01_sfnt_off00005bc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC6 9780 bytes
SHA-256: 4fd6bac3dd6439abf2fc747a2ce8f2b8420d06e3e1ea322de5ee2058a8f422bf
font_02_sfnt_off00007c61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C61 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e