Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0c85b9b3bd98c23…

MALICIOUS

PDF

43.7 KB Created: 2020-08-01 07:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57549e47f4e15c592d0473ed6407c7c4 SHA-1: 777456ea3ffd29961d03da8761f1b941ae8b0c74 SHA-256: a0c85b9b3bd98c2376d92b8cea9ce0e32c19ff9033b5ce008a693b81c6d5a4d2
194 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO spam or redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector infrastructure at `ttraff.cc`. The document body, though heavily obfuscated, contains a reference to the same URL, suggesting it's the primary lure. The file's structure and the presence of many external links point towards a phishing or redirection attack.

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=night+lord+skill+build In PDF document text
    • http://files.theteamvision.net/uploads/1/3/2/6/132682905/9726277.pdfIn PDF document text
    • http://files.turncoatmenswear.com/uploads/1/3/0/7/130738943/144730f58e7624.pdfIn PDF document text
    • http://files.prbcbwk.org/uploads/1/3/1/0/131070604/44ea73fdd9049f.pdfIn PDF document text
    • http://files.charmantconnect.com/uploads/1/3/1/6/131636654/vifot.pdfIn PDF document text
    • http://files.therockprefabgranite.com/uploads/1/3/1/4/131453588/e406facb99f6.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/1/0433/0687/7080/files/zebegevuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/9151878541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3152/6561/files/xelilefike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7245/4807/files/28898986602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1320/9246/files/gavab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3501/6863/files/38925097417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/48377810752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/16744134643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7299/5996/files/old_rv_owners_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6939/1527/files/rimivogojeruxubap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/sogofumuwokiwa.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 6

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_off00006d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D1E 5052 bytes
SHA-256: eb4037b758cf499eed93b752bf90de7479363453458be3a7a81623e4c991debd
font_01_sfnt_off00007e4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4A 10364 bytes
SHA-256: e1448b18406c3b6e6658b80fae4718f2bc0e3856727bf037c44b8b117c8478a5

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