Malicious PDF — malware analysis report

Static analysis result for SHA-256 d67552f3cff5ac10…

MALICIOUS

PDF

36.0 KB Created: 2020-08-21 23:46:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f38a15b0f8e0e4ac57dfcbc90942c94b SHA-1: c8217f62e2805bb31503ae6bf75526de3cabb649 SHA-256: d67552f3cff5ac106c5f1166ccc264a451139956346590e667b0de8cdf9864bb
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The embedded URLs, particularly the one pointing to 'ttraff.cc', are likely part of a phishing or malware distribution scheme. The document body contains obfuscated text and numerous URLs, reinforcing the attack pattern of a link farm designed to lure users to malicious sites.

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=hdpe+sheet+extrusion+welding In PDF document text
    • http://files.sceat.net/uploads/1/3/2/7/132710783/3645037.pdfIn PDF document text
    • http://files.ibbusinessandmanagement.com/uploads/1/3/0/8/130813483/de4d14.pdfIn PDF document text
    • http://zuvagejob.libertymensranch.com/uploads/1/3/1/8/131871864/afab900f046f7d.pdfIn PDF document text
    • http://files.waiwichita.org/uploads/1/3/1/6/131606818/vizefevir_xizod_tasologuropadoj.pdfIn PDF document text
    • http://files.theliteraturefactory.com.au/uploads/1/3/1/4/131406507/b0bcade.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/1/0432/9462/1862/files/borasadob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9375/4009/files/great_is_thy_faithfulness_g.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3186/3202/files/2575172580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9534/1723/files/70976459136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/66024505607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0707/4723/files/suniwaremalawopafemunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/tepuxomepavegiged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/22340680758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0105/1293/files/mukavebukovoxigugiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/barusur.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_off000050e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E6 5132 bytes
SHA-256: c121baeb474234a5dbeb177da38319e350efb0fcf828f6c6228c9e7b4ee54524
font_01_sfnt_off00006273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6273 9600 bytes
SHA-256: ccdd201731d36fcaed8995c10a34f5098ef9b740802d3966b273827c1a303571

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