Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc83bbec9da9ea0…

MALICIOUS

PDF

41.5 KB Created: 2020-08-27 16:09:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a7aeb1066b052ff5b5056a14cc9e2c40 SHA-1: c632afd7ec3602aa71adfa5522dc81ec8da59696 SHA-256: 0dc83bbec9da9ea003bf2cad98ca198a0ccdf774689cb6f0244c13e722f4ebee
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous links, identified as a link farm, with a critical heuristic firing for linking to known malicious redirector infrastructure. The primary redirector URL is 'https://ttraff.cc/pify?keyword=the+complete+iep%252F504+guide'. The document's purpose appears to be to drive traffic to this link farm, likely for SEO manipulation or to distribute further malicious 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.cc/pify?keyword=the+complete+iep%252F504+guide In PDF document text
    • http://files.lantaumama.com/uploads/1/3/1/6/131606465/9530208.pdfIn PDF document text
    • http://files.gracebaptistchurch77.com/uploads/1/3/1/1/131163635/5675095.pdfIn PDF document text
    • http://files.virginiacitytreasureisland.com/uploads/1/3/1/3/131380292/soxuvofinawu.pdfIn PDF document text
    • http://sesivux.kingfisher-strategy.com/uploads/1/3/2/3/132302868/9874854.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/1/0429/9315/6259/files/gelomifajipiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2103/2859/files/loruvuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/just_basic_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0478/8642/files/nasoligorami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/present_perfect_tense_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2985/4368/files/96101240568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8484/4949/files/25125419379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7247/9647/files/61848786522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8573/9685/files/zatafevemareju.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000645e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645E 5340 bytes
SHA-256: 1b31c413d5e68fe3aea324432c145d4dc0adcfdbf2e9a7e9535d7746421323d0
font_01_sfnt_off0000767c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x767C 10440 bytes
SHA-256: fdd2f5f15f695b3ef228916bc61820b1eeb0413ca67d4d1aeffc08ff0e3a5bfe