Malicious PDF — malware analysis report

Static analysis result for SHA-256 f80217c06597aad1…

MALICIOUS

PDF

39.6 KB Created: 2020-08-25 12:19:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2adfe420201ab373da7cd12551730670 SHA-1: 6fcb5748270ad1c26159a258eae5383a7744a071 SHA-256: f80217c06597aad1a9552c6520a65203fb864c856b239d544588da96c3d5c7c1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is disguised as a free video calling app. The document body also explicitly contains this URL and related keywords. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the malicious redirector. 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.ru/pify?keyword=video+calling+app+free++for+pc In PDF document text
    • http://files.explorejewishindia.com/uploads/1/3/0/8/130814877/816dcaf10c.pdfIn PDF document text
    • http://files.shearingjobs.com/uploads/1/3/1/4/131406036/gevemivizej.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/1/0440/3222/9541/files/full_size_bed_sheets_100_cotton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5432/4117/files/63231767079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/1240/6686/files/l2_kamaloka_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/zolebadoxomelot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6327/0815/files/data_analysis_test_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8288/2980/files/birekuduvupetusimop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3952/files/defebiwuxinikeriku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3103/5032/files/7754103862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/20394672882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2881/5783/files/tibusagon.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_off00005cb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB4 5112 bytes
SHA-256: 5f8f254429a27e76b41c06fb5afb8a051f895e8b262f985379b0811308b87e78
font_01_sfnt_off00006e24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E24 10532 bytes
SHA-256: 845148eb5fee943df351b6177d0782d423f562c74991e3ab2ef64adac6a043d3

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