Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e45be07279d527e…

MALICIOUS

PDF

52.9 KB Created: 2020-08-11 13:20:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2bf1bd9ee01c21943202d28bc871d559 SHA-1: bb0f4ae5f29cb03d386f5042f7480266c345adf3 SHA-256: 5e45be07279d527e63031883aa36450874a6a2e17a228ac3a1981d6bbda634b9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body and embedded links suggest a lure to download more PDFs, likely as part of a link farm or SEO manipulation scheme to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=how+to+become+a+good+english+speaker+pdf In PDF document text
    • http://vonoxuwax.manchesterfashionweek.com/uploads/1/3/1/4/131406717/9672326.pdfIn PDF document text
    • http://files.kerrybrookfarm.com/uploads/1/3/2/6/132681308/werazoxekowuv_dazamata.pdfIn PDF document text
    • http://files.ppmnw.com/uploads/1/3/2/8/132814935/5058284.pdfIn PDF document text
    • http://jonaluw.thorbournebaby.com/uploads/1/3/0/8/130813846/jotonejetuvepurila.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/1/0427/8861/8396/files/remavozepadijibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/destinitos_fatales_andres_caicedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2449/9367/files/1279571436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5135/1207/files/dapipejosak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6394/3074/files/84983934493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3483/7149/files/muzapisolivaxepuzagufegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2338/2166/files/oracle_pl_sql_interview_questions_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/7014/1095/files/aluminum_lithium_alloys_processing_properties_and_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5797/9304/files/nupopufagafuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2881/4741/files/gekufotisonakexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/fileruwaxisim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/pufutit.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 3

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_off000090dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90DD 5828 bytes
SHA-256: fa2b92ece7918f57c0248c0630905a03eac51d90021b590b6b1c488fc70ead3c
font_01_sfnt_off0000a484.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA484 10024 bytes
SHA-256: 1d5ef957eaa09c79b2f48e470b4648f66fdb9145b3c845b5c41210d90177dc55

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