Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c2f207907089982…

MALICIOUS

PDF

44.5 KB Created: 2020-08-22 16:41:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b0fd5a6e406fc289bd32f672332850a SHA-1: b35bfcfd8ee4a31e8bdc0713b3bd10eb1e800550 SHA-256: 4c2f207907089982e80b96084f0f923fa5c8e84e40631181ecdffa1dac8d8dcb
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=appium+studio+latest+version'. This link is presented in a context that suggests a lure related to software, likely to trick the user into clicking. The document also contains a large number of embedded links, many of which point to benign Shopify URLs, but the presence of the malicious redirector is the primary indicator of malicious intent.

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/pify?keyword=appium+studio+latest+version In PDF document text
    • http://files.truelivingcounselling.com/uploads/1/3/0/7/130738939/saravawirijitot.pdfIn PDF document text
    • http://ludaf.seibelfamily.net/uploads/1/3/1/6/131636725/surizobujat-rinereva-jagigup-kobeja.pdfIn PDF document text
    • http://vununos.wildhoneyonline.co.uk/uploads/1/3/0/7/130776485/kifoseradozowaxum.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/1/0435/3880/8991/files/windows_server_2019_cal_licensing_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/6680/3622/files/ffxiv_heaven_on_high_weapon_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2418/7549/files/44416893562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9467339244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/alphabet_missing_letters_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/theatre_cover_letter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7618/2426/files/rewifalazanizipuwake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/81924764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0973/2771/files/functional_data_analysis_ramsay_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7348/files/navekidoxasokukegarif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8519/3621/files/cbse_class_10_sample_paper_2020_20_with_solution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/80914972192.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_off000063b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B6 5156 bytes
SHA-256: 89066dfc017ec74d021dc8981109486a993e503fc5699c2bdaed21ab9b743ec3
font_01_sfnt_off00007527.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7527 15056 bytes
SHA-256: ee350776a384bc52a2bafb4d120b0f85757d16e3096396d5427ba8c5276c37ba

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