Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7be68636a314abd…

MALICIOUS

PDF

44.8 KB Created: 2020-08-15 03:38:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1b94c6930a5413aad19011571b7bd5f5 SHA-1: c28acaa10f530a9d26d6054022a8258d836782ac SHA-256: b7be68636a314abd03ddb43ef2e7e64881a2c6322ad89cc4bf13766240d0cbf7
202 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of the primary links directs to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Dgc cedula catastral informada', suggesting a phishing or social engineering attempt to trick the user into clicking the malicious link. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=dgc+cedula+catastral+informada In PDF document text
    • http://files.onedaymorefitness.com/uploads/1/3/0/8/130874369/rowasowedelamukal.pdfIn PDF document text
    • http://files.cfcstuttgart.org/uploads/1/3/0/7/130739495/61fe14292b26.pdfIn PDF document text
    • http://files.mrwince.com/uploads/1/3/1/4/131453226/22a91.pdfIn PDF document text
    • http://files.potomacschoolrobotics.org/uploads/1/3/1/1/131164456/9607034.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/1/0434/5056/4773/files/alopurinol_mecanismo_de_accion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1442/2687/files/42924962541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6533/4165/files/28775937443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2312/2084/files/1035256101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8338/2427/files/classification_and_prediction_in_data_mining_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/bufovugisejibezobuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7276/6630/files/81208184150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/6001/files/10013552929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0723/8567/files/cemented_carbides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9073/9361/files/fokudowugup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7197/9172/files/seniloduzoxujerefona.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_off00006fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD8 5340 bytes
SHA-256: 7a494fbbe82a7ee63556717e7ae4a03293523a14ba531e78b5b11a2739caf8f5
font_01_sfnt_off000081ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81ED 10692 bytes
SHA-256: 7c71c97bd0ec43acc7db0993b16bea69268a33606b3029a44b7decebeca03894

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