Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2f26b38fd38c378…

MALICIOUS

PDF

41.4 KB Created: 2020-08-28 04:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bfdaeb99397e446e83f52a211bcee3bc SHA-1: 8aba9d2887d6e39bd83bf4f0e0fd763dac594ae1 SHA-256: b2f26b38fd38c3788a3244a6203e440a04505bbec5277acb9980ea260c0af842
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to a redirector service (ttraff.ru) known for malicious activity. The document body, though heavily obfuscated, also contains this redirector URL and references to a 'Vax steam mop s7 leaking', suggesting a lure to entice users to click the malicious links. The presence of a link farm and a malicious redirector strongly indicates an attempt to lead users to a compromised site.

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=vax+steam+mop+s7+leaking In PDF document text
    • http://files.enricahandwoven.com/uploads/1/3/1/8/131856703/47a6c9901b.pdfIn PDF document text
    • http://files.newworldparadigms.space/uploads/1/3/1/1/131164016/115fde50c776.pdfIn PDF document text
    • http://sixidoxo.lisastory.org/uploads/1/3/2/6/132682347/lubutupozadodisitu.pdfIn PDF document text
    • http://batobumi.workshoots.com/uploads/1/3/1/4/131438003/venunedalupomuneg.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/1/0433/4023/4902/files/screen_video_capture_free_full_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/wezes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/french_orthography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7474/0639/files/wekow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4171/8426/files/59539952945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5355/5624/files/djmaza_audio_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/mexigamesimiravol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5613/0200/files/53462944986.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 8

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_off0000638a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638A 5220 bytes
SHA-256: 3de302ba6acd9fb0cb822bb977c674d7695475323b277880983957645f24e6a7
font_01_sfnt_off00007558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7558 10476 bytes
SHA-256: a980e45cd60754e7122976d3ead51f61913cffa57a673ff67c193c10695c0b80

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