Malicious PDF — malware analysis report

Static analysis result for SHA-256 958ac5e4068253e4…

MALICIOUS

PDF

71.6 KB Created: 2020-08-13 00:57:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c9f0e59423d498e991587c6bfdb35ff SHA-1: 7c559cbf15c5bda180bab6e348e669eadf18926f SHA-256: 958ac5e4068253e479415876f61a4c88ed09e66c4172f2dc0b0479c0e1c5705b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a malicious site. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the primary malicious behavior observed is the redirection to a potentially harmful URL.

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/wb?keyword=corporate%20governance%20and%20development%20pdf In PDF document text
    • http://lipeb.velieconsultingservices.com/uploads/1/3/0/8/130874588/3981317.pdfIn PDF document text
    • http://files.rooambieretreat.com/uploads/1/3/2/3/132303175/zinixegobulakutone.pdfIn PDF document text
    • http://jujen.shannanyates.com/uploads/1/3/1/4/131483281/37428.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/1/0435/2655/3755/files/89649930359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1563/files/8985326390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1722/3840/files/waralumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6489/3345/files/76483551857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6562/9082/files/photoshop_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57727452667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6810/2558/files/70118686930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3796/4960/files/bseb_matric_result_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/83152375991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0755/8310/files/66180368484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4340/4441/files/how_to_resize_a_layer_in_photoshop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0357/4434/files/book_review_sample_isc.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 4

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_off0000dba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA1 5260 bytes
SHA-256: 367f8458c0ae8d71abbcde82ea24131e5961c353180ff09575d8abfc3c4d4611
font_01_sfnt_off0000ed7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7B 10600 bytes
SHA-256: e233500674d424ba9f7cf784751c7cf93a8429bf34e0c7d9e311cb3a48d96890

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