Malicious PDF — malware analysis report

Static analysis result for SHA-256 85bf75d803948956…

MALICIOUS

PDF

45.6 KB Created: 2020-08-24 01:25:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 602c28a9abb3e95577cf96d0e857944c SHA-1: 4d49a4210017ead634f837217a918ef10458ffa5 SHA-256: 85bf75d8039489569d1f2f7061c52f334345569b565659061b88613ee53c7b7e
194 Risk Score

Malware Insights

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

The PDF contains multiple links to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a phishing lure related to 'apple inc windows 10'. The presence of numerous links to external PDFs, many hosted on Shopify, suggests an attempt to create a link farm for SEO manipulation, likely to drive traffic to 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.cc/pify?keyword=bonjour+apple+inc+windows+10 In PDF document text
    • http://files.getbackpainfree.com/uploads/1/3/0/8/130813769/8483869.pdfIn PDF document text
    • http://files.travelwithkalsi.com/uploads/1/3/1/4/131410007/1054703.pdfIn PDF document text
    • http://files.bendtrendhomes.com/uploads/1/3/0/7/130775677/tuzupuruwu.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/1/0434/0046/2501/files/toxefutemifunujatuzumawut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9242/6405/files/85354145364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/child_care_business_plan_sample_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1157/9809/files/bright_futures_12_month.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/52712157994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1450/4093/files/71681825702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2726/5698/files/54583658992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6413/0725/files/84800722011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4847/6570/files/pafabegadupulufavukebarop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5266/0901/files/57766296082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5883/0229/files/siponuwuvosuxexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2658/6527/files/patriarchy_definition_sociology.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 7

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_off0000733f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x733F 5476 bytes
SHA-256: ad4ebbf822909aa859d37c0c1014fbbf3d9263fce27edbfdf1d110660f1854c1
font_01_sfnt_off00008601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8601 10308 bytes
SHA-256: 830c66e31618917f3443bc7a0711fda9c0c04779d62be668b6a57e620349bd1a

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