Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a1efb2e1d9f6d2…

MALICIOUS

PDF

41.5 KB Created: 2020-08-15 08:25:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 759c8afdc413ffb5f3f4b6e52e0fe73a SHA-1: db11eafb361dc296a301c3ea783a3024a3816cde SHA-256: e5a1efb2e1d9f6d27fe7c40f8f4dacea19d0dd22cccef56f3b0c2c23b5240380
214 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. Another critical heuristic identifies it as a PDF link farm, with many links pointing to Shopify domains, likely to obscure the malicious destination. The presence of a callback lure heuristic suggests a potential tech-support scam or phishing attempt. 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.ru/pify?keyword=bottomsheetdialogfragment+set+behavior In PDF document text
    • http://sotuv.somedaynewfoundlands.com/uploads/1/3/1/8/131857054/xurezanukatafonitur.pdfIn PDF document text
    • http://petup.ncfoodactionplan.com/uploads/1/3/1/6/131636725/6872728.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/1/0440/9291/5864/files/plant_systematics_phylogenetic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/65138159540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4529/8074/files/79402429372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4184/1571/files/xujanufinalarawuxajanato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/pdf_to_word_editable_converter_free_download_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3538/5243/files/55298618370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0846/5828/files/xitokiluwoxasokex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/pernos_astm_a325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7599/2728/files/68165591673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1471/5549/files/completely_randomized_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6234/5384/files/xuzuzawelo.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 1

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_off0000637d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637D 5568 bytes
SHA-256: 22741685c1d8e2c34a95d7c33af0702d98857d061d0ec8760e51ed8210547891
font_01_sfnt_off00007655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7655 10232 bytes
SHA-256: 4a6e2092f2c7848af1228c3d676f9839b7b53f0947db0852494615ec02dcba30

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