Malicious PDF — malware analysis report

Static analysis result for SHA-256 898cbde2f7db2354…

MALICIOUS

PDF

40.1 KB Created: 2020-08-22 19:54:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68ca8ae1b33bcaac23546875ee71411d SHA-1: e0127809734adb6334b18032c7255c307cfbd23f SHA-256: 898cbde2f7db2354329a32f56bc9a628a6a6ccf10ea25d781e1b020aa6fbd703
234 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and references to shopify links, suggesting a link farm or SEO manipulation tactic to drive traffic. The presence of a 'password-protected archive lure' heuristic indicates that the document likely aims to trick the user into downloading a password-protected file, a common method to bypass gateway security.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.com/pify?keyword=explosion+box+video In PDF document text
    • http://files.hushupclothing.com/uploads/1/3/1/8/131856391/mamulov.pdfIn PDF document text
    • http://zomuwe.laurenandresurbanist.com/uploads/1/3/0/7/130775085/42f7f478.pdfIn PDF document text
    • http://ligiw.bainbridge-ny-rotary.com/uploads/1/3/2/6/132683001/39ad4de6f084ea8.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/1/0430/5528/4373/files/vanijototerewax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/free_2011_nec.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5861/6733/files/pejusususujuzutepotula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5178/6145/files/lullaby_lateeya_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5628/3296/files/benefits_of_renewable_energy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/20829897000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/8441/1033/files/deltoid_bursitis_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9109/0844/files/61504286587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3566/files/90409163158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1083/4077/files/how_to_mod_gta_5_xbox_360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6641/7571/files/91961024967.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_off00005f5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5E 4872 bytes
SHA-256: 92fa9aa36fdde5467274980addef7f1c728b9ab0f2d434346ffc206d751d9c4f
font_01_sfnt_off00007009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7009 10620 bytes
SHA-256: 7f7851f45c87d1dc9effbfbc3fe934f7a381660a782501b68f0856eb4ff78862