Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b1f055696b8bc48…

MALICIOUS

PDF

39.2 KB Created: 2020-09-10 01:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3507c4334e1fcb0b31c0b271d687531 SHA-1: 598c0f248400914f27e35a2b37ad7b9d6205698a SHA-256: 8b1f055696b8bc489594a10133a9aca3a5c76c090ad2aa0feae1a5be6465c0f8
134 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link. The primary URL, https://ttraff.link/wix?keyword=aerobic+step+exercise+stepper+platform, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other suspicious PDF download links, suggesting a lure for phishing or malware delivery. No scripts were extracted, but the presence of the malicious redirector is sufficient evidence for a high-confidence assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.link/wix?keyword=aerobic+step+exercise+stepper+platform In PDF document text
    • http://files.livingsoulplete.com/uploads/1/3/1/3/131381464/pozukepun-fewapunafijaba-bifuvewadotolik-vuvozeja.pdfIn PDF document text
    • http://rudomame.lastangelstattoos.com/uploads/1/3/1/6/131606000/6cadf82b2.pdfIn PDF document text
    • http://files.trendclothinginc.com/uploads/1/3/1/4/131437523/xarusi.pdfIn PDF document text
    • http://gobow.jeromecustoms.com/uploads/1/3/1/1/131164250/webefadudeme.pdfIn PDF document text
    • http://files.theglamstationspa.com/uploads/1/3/1/4/131453198/zutilevugetuj.pdfIn PDF document text
    • http://files.pelhamhealthcareassociates.com/uploads/1/3/1/3/131379246/kariwosatasis.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/1/0436/4910/6080/files/46008572189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3417/3859/files/dcs_world_rafale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1297/9879/files/7457450019.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_off00005d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D1E 5360 bytes
SHA-256: 476e8fb715ebf9befcaf80811a6954afc5eab48a72beb6991eb0dfc58a65242b
font_01_sfnt_off00006f43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F43 9592 bytes
SHA-256: 3b7cfd51b25132999e7ad317d1b103b80eae7a210cbeac48a8585cb09799e1af

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