Malicious PDF — malware analysis report

Static analysis result for SHA-256 876830fa0ca34d25…

MALICIOUS

PDF

40.3 KB Created: 2020-08-21 13:47:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 96ea807950e8ed7eb2e370f046837b28 SHA-1: b0b53b6156a232fab72e0fae964e29d8d641c21d SHA-256: 876830fa0ca34d25895946fe37eb5dd229528a6a940de1f39fc29086f3064c10
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that lead to a redirector URL, indicating a phishing or malicious content delivery attempt. The document body, though partially corrupted, includes the redirector URL and other URLs that appear to be part of a link farm designed to improve search engine ranking for malicious content. 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=rooms+in+clue+game+fight+list+answers In PDF document text
    • http://files.numc.net/uploads/1/3/1/4/131409090/joxizevofalaxilex.pdfIn PDF document text
    • http://wipux.bonescanoeandcampground.com/uploads/1/3/0/8/130874276/zikobudejitidirojom.pdfIn PDF document text
    • http://rivosaxo.clayshootingdevon.co.uk/uploads/1/3/0/7/130775350/masogulem-rofuzevekuwanef-loxir.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/sed_awk_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7528/8742/files/59051462746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8950/2111/files/givixizanabizutagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/bawivibixujerikapaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/angular_set_form_field_dirty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1497/9737/files/9893660821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/9502/3776/files/99145086514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/78116265009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/14479202714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/11458730255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0917/0856/files/berlitz_english_level_1-_4.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000513a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x513A 5276 bytes
SHA-256: aadb27a1146b780518c6d3a2d3cdd46b0342d1d4abf9409505049d5b846787ae
font_01_sfnt_off0000630e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630E 10308 bytes
SHA-256: aac6b4a00dbccd6d9440ed56d06701ec9676dd9fa06e4e96815b5b120d6fad2d
font_02_sfnt_off00008659.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8659 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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