Malicious PDF — malware analysis report

Static analysis result for SHA-256 93b6c3c18905d884…

MALICIOUS

PDF

42.6 KB Created: 2020-08-07 20:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e23438e5ad19d355a4695e196bbc2a7 SHA-1: 355c01f77698a59559632aed10ce06edfa2d9da1 SHA-256: 93b6c3c18905d8846a1516650cd2887f952ef32167aaf54fee04278cb8922d09
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to ttraff.cc. This indicates the document is designed to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, reinforcing the lure of a file conversion tool. The presence of numerous external links, as flagged by PDF_SEO_LINK_FARM, suggests a tactic to distribute malicious content widely.

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.cc/pify?keyword=apache+poi+pdf+to+ppt In PDF document text
    • http://files.nutritionrites.com/uploads/1/3/1/4/131438538/xuxozur-renim-rifolova.pdfIn PDF document text
    • http://files.mrragersblog.com/uploads/1/3/0/7/130739810/wotasa-ranatusesafefi.pdfIn PDF document text
    • http://files.communitychurchsheppey.com/uploads/1/3/0/8/130874318/49948dc.pdfIn PDF document text
    • http://files.mrgraney.com/uploads/1/3/2/6/132681144/cdb69af5f09f4b.pdfIn PDF document text
    • http://files.stevenwojtowicz.com/uploads/1/3/0/8/130873826/kopojupuwi.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/1/0428/9835/8432/files/669297692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/bifulusesowodezaxujoturi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/vasitebetufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/11645668526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9088/6312/files/65914550517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/vetugileterupitofuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3080/4637/files/dikaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6861/1996/files/83541896780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5183/5801/files/glock_buyers_guide_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8344/7968/files/xawefokalomodudujazaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/79189603032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/14717241073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1031/6694/files/31544595014.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_off00006a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A56 4928 bytes
SHA-256: 203bbcc9f3f79d100fca29970ab9fe2ca75747408fbfe47f1315d89799117181
font_01_sfnt_off00007b21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B21 10080 bytes
SHA-256: 9cab2897926d4aa5d86257a1a6b8be495fc9e4b7aa568394c9940122f4612756