Malicious PDF — malware analysis report

Static analysis result for SHA-256 97838984408dfc6c…

MALICIOUS

PDF

41.8 KB Created: 2020-08-09 17:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 383c34a7934b5aba7b00334fd7db6e85 SHA-1: e2c6a77bc237cd212db6130d09f2c9e64836aa3d SHA-256: 97838984408dfc6c7f5fc0a938aafe315fc828df3e67732aaa70f975256cc38c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that triggered this finding. The primary purpose appears to be directing users to a malicious site under the guise of providing a PDF document. No scripts were extracted, and the PDF structure itself did not reveal further malicious intent beyond the embedded 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.com/pify?keyword=developing+android+apps+with+python+pdf In PDF document text
    • http://files.moorehousecreations.com/uploads/1/3/0/7/130775837/detoter_bazaruzejimol.pdfIn PDF document text
    • http://files.widlundbrothers.com/uploads/1/3/0/7/130775760/b5ca2ccfd1b75.pdfIn PDF document text
    • http://files.alovettingram.com/uploads/1/3/1/3/131384185/givojekureviku.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/1/0435/2737/2955/files/15155003635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6187/0743/files/51432855461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4410/8445/files/83358032184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5883/7142/files/new_holland_ls170_specs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7564/7128/files/ncert_solutions_for_class_11_biology_chapter_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1723/0741/files/69854717047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/73120096129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51982080438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0908/9434/files/leed_core_concepts_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/7355/6900/files/fundamental_english_grammar_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nowivozepax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0016/7589/files/48488285414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0862/9663/files/psp_gba_emulator.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 5

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_off0000648e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648E 5556 bytes
SHA-256: 9c112dde659ea0a286e04ebabe61341406ef0411aa4d427b25184bb61713940e
font_01_sfnt_off00007792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7792 10180 bytes
SHA-256: ee84ee2e02943ac74d2e46bf09fe08e2829d690e982bf0285c021c77fc06dba5

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