Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2c00f02c1dbab9…

MALICIOUS

PDF

39.3 KB Created: 2020-08-21 17:09:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e88e011471792989daf255c284655c58 SHA-1: b461771b74c2b3420beba6be18ef7ba6d9442823 SHA-256: fb2c00f02c1dbab987b335469cd5f8f31950d726b2216e56cb153c0092371be2
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains the same URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, likely for SEO manipulation or to host further malicious content. The ML classifier strongly indicates 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=revised+bloom%2527+s+taxonomy+guide+questions In PDF document text
    • http://files.neighborhoodchiro.com/uploads/1/3/0/8/130814717/bifulibali_nexij_tejaxola.pdfIn PDF document text
    • http://files.joydanielle.net/uploads/1/3/1/4/131406885/xegukitarewa.pdfIn PDF document text
    • http://merufe.sarasotacommunitychurch.org/uploads/1/3/0/8/130874038/nemavunalusi_xivesiwu_radefi.pdfIn PDF document text
    • http://sawox.cfuwhh.ca/uploads/1/3/1/8/131871674/5334236.pdfIn PDF document text
    • http://files.frankysmusicproduction.com/uploads/1/3/1/4/131407965/4a97b3.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/1/0438/2448/0416/files/bebekibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/89157304037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/bhakti_yoga_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/lomajepibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6065/8333/files/banatovudopujinobik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/4167476653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/93228771178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7644/2519/files/fepulo.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 5

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_off00005a33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A33 5588 bytes
SHA-256: b7d57cab06d788525142b7178180a8ef7fae29af13999464f772d6dcf7992d68
font_01_sfnt_off00006d2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2C 10280 bytes
SHA-256: 732f913044a625152e7819e09564342349ee16d29608d4fa78c449c0dc2e5f08

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