Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b3f4a121a69b2bb…

MALICIOUS

PDF

34.5 KB Created: 2020-08-12 11:55:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6976f273957746f99ad599f7e51a4477 SHA-1: 35c00e00ad091ad9834522c0b8bcf5e5575baf73 SHA-256: 1b3f4a121a69b2bb3358fe817d5d22c8d87f7c13669e9828f223838ab92bba3a
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at ttraff.com. The document body, though heavily corrupted, contains text related to a 'construction business plan' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The presence of numerous benign-looking Shopify links is likely an attempt to camouflage the malicious redirector among legitimate content.

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=completed+construction+business+plan+pdf In PDF document text
    • http://files.jacwellness.com/uploads/1/3/1/3/131380297/serima.pdfIn PDF document text
    • http://nazajide.hlacupuncture.com/uploads/1/3/2/6/132681352/3470613.pdfIn PDF document text
    • http://files.jinntonic.com/uploads/1/3/0/8/130874055/9090856.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/1/0436/4402/7038/files/multivariable_calculus_larson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/oxford_dictionary_of_synonyms_and_antonyms_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7805/0211/files/interviewing_skills_training_for_managers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1136/5288/files/15793012526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4831/0683/files/surface_area_of_triangular_prism_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9139/2664/files/los_anunnaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2897/0652/files/wild_animals_name_list_with_picture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/62267580871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2204/7638/files/bubosizotineso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3943/8501/files/7175576950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/pawubedopozebabukele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1277/6351/files/ripunoxufipedavux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4954/1013/files/arab_health_2020_exhibitors_list.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 2

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_off00004978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4978 5344 bytes
SHA-256: 6b70e5363f995f940b800767a424fc98c3478910337a150a7530cd4b76ee7fdd
font_01_sfnt_off00005b80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B80 9792 bytes
SHA-256: e509491876e819378afb34ebb3dec8c0aca5430a6561491fed6b3c950decff0c

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