Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc62136c7f69ca0c…

MALICIOUS

PDF

39.6 KB Created: 2020-08-18 21:54:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e839190d7d1de185804baf1f1bb5c83 SHA-1: bb782dcaf5c8a1941362118dc48c2fedd0e3f534 SHA-256: dc62136c7f69ca0cbd7e79f8109daa2630b1174886038819c212b1520ee4fbf8
194 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of external PDF links, indicating a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=shoot+apical+meristem+development+pdf. The document body is heavily obfuscated, but the presence of numerous links suggests an attempt to lure users to external, potentially malicious, sites.

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=shoot+apical+meristem+development+pdf In PDF document text
    • http://files.dbhomeatlast.com/uploads/1/3/1/1/131164295/rizebudipilob_kuletivozaxe.pdfIn PDF document text
    • http://files.faithacademyfootball.com/uploads/1/3/2/7/132740253/aef11745b42cea.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/1/0431/3035/5866/files/vanibabotisolip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32823332632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9015/7473/files/12370413614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/11843408117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2890/5127/files/82783530043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4655/8106/files/73944241510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6754/7552/files/gejorewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7569/7830/files/fivuxujexetojuruxuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6489/3344/files/moralipezoripej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/62538862772.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 3

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_off00005e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E52 5556 bytes
SHA-256: 06c613b2edab96f64403dddcadd317d5fcd277b4780aaf8f5dc87646490bfaf9
font_01_sfnt_off00007117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7117 9608 bytes
SHA-256: 0b50bd5df746f2e4a22fa7f2b58a7e04d9d5a51f509731b9b1fb54034d5713ff

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