Malicious PDF — malware analysis report

Static analysis result for SHA-256 79becdc97fa35aff…

MALICIOUS

PDF

69.5 KB Created: 2020-07-29 03:39:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f5e5a5ccd3f1529c19b64b3e41f3695 SHA-1: 6fdbd3d2af146616abbe9bbcba28c24ed065f90f SHA-256: 79becdc97fa35aff1e94bdf203893a9c80d868b102f4ea7b4260c1171320ebbc
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to the URL 'https://ttraff.ru/pify?keyword=la+bella+e+la+bestia+2017'. This suggests the document's primary purpose is to redirect users to potentially harmful websites, likely for phishing or to serve further malicious content. No scripts were extracted, but the embedded links are strong indicators 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.ru/pify?keyword=la+bella+e+la+bestia+2017 In PDF document text
    • http://files.beadsbraidsknots.co.uk/uploads/1/3/1/4/131452997/kejemufaxofufi_viwepip_bezogemozekov_kuvoxur.pdfIn PDF document text
    • http://files.alittlenautiorderingsite.com/uploads/1/3/0/7/130774993/nemaluwurilo.pdfIn PDF document text
    • http://files.nipponcollection.com/uploads/1/3/1/3/131384604/fejavi-kajise.pdfIn PDF document text
    • http://files.dwarfhollowfarmstead.com/uploads/1/3/1/4/131453531/lawivebikono.pdfIn PDF document text
    • http://files.atlanticblueaquariums.com/uploads/1/3/0/7/130739928/a11119a4f6.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/1/0437/3318/8762/files/lilapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6423/7992/files/zuwarosewavabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2802/7304/files/wugezapukaramaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7565/6094/files/79946267150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6778/2808/files/jijisoxefopuliburepop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4032/6300/files/wixudojedarofapadebug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/rudelanuduvibelumalezuwof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7789/4293/files/38759769820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4724/7263/files/52293640873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1391/5303/files/womigidutigosobizepob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/befevavusaxigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2883/9586/files/33800608436.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC637 4644 bytes
SHA-256: 90a7929c453932df5a7e2f2e84e7a51445be886e65146f81066b225f6a014f59
font_01_sfnt_off0000d609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD609 17084 bytes
SHA-256: b3ded3efde6f14f0c8a19aa09ddcfb75db665a5f088b96b6cdb6d67149d800d7