Malicious PDF — malware analysis report

Static analysis result for SHA-256 5edffb7a3527409c…

MALICIOUS

PDF

41.7 KB Created: 2020-08-13 18:21:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 719712ffc00709b9d4f19e14c639ea38 SHA-1: e71c3b22addf00eda5f08bc7890e5736c6256fa2 SHA-256: 5edffb7a3527409ccc91111966a44e887600b356d5029baf929e487e89e3d122
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm designed to redirect users to malicious infrastructure, masquerading as a craft tutorial. The primary redirector URL is https://ttraff.com/wb?keyword=manualidades%20con%20tubos%20de%20papel%20higienico%20flores. This indicates a phishing or scam attempt leveraging SEO tactics to distribute 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.com/wb?keyword=manualidades%20con%20tubos%20de%20papel%20higienico%20flores In PDF document text
    • http://files.furiouscrafting.com/uploads/1/3/1/6/131637056/guretiveguxaxaz-rilujezinusez-sisetizeve-jolivawekevej.pdfIn PDF document text
    • http://gezakatu.dealswithamy.com/uploads/1/3/1/4/131482975/gawumelesaxezak_furirezu.pdfIn PDF document text
    • http://files.zionkearney.com/uploads/1/3/1/3/131379356/7394409.pdfIn PDF document text
    • http://files.mideastchef.com/uploads/1/3/1/6/131606343/rejeju.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/1/0433/2909/3800/files/allahabad_high_court_aro_notification_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8597/8013/files/67341691369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2614/3639/files/38127510846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9282/6517/files/aspergillus_parasiticus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1530/6405/files/15810762055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5249/1159/files/69650572835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5478/3893/files/80397597786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6433/6290/files/41484131915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8044/1238/files/91888770278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4337/9617/files/the_practice_absite_question_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1060/3677/files/50004970013.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_off000061ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EF 5560 bytes
SHA-256: 6a509369a14f09fb3885275a81c7d576896e5380e5219ff16d0e1809112543dd
font_01_sfnt_off000074d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74D0 11276 bytes
SHA-256: bfdc1c6ea3f4067f3cda850eb70e1877b8032f4a2d225a1eeb1d88bc7b6a6fcc

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