Malicious PDF — malware analysis report

Static analysis result for SHA-256 988774d94062cec9…

MALICIOUS

PDF

48.4 KB Created: 2020-08-06 07:32:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 452b9e1bb70283d5e105b35a2b4c388b SHA-1: 4305bd2f28d3de009122ecf6a874df8e9e26b89e SHA-256: 988774d94062cec91d155962a9716d485b9ff92aebe3dae114981e41b9f8295e
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources, a common tactic for SEO poisoning or link farming. One of the primary links, 'https://ttraff.cc/pify?keyword=what+is+adverb+phrase+pdf', is identified as a malicious redirector. The document body, though partially corrupted, contains this URL and other Shopify links, suggesting a lure to a malicious site disguised as a document. No scripts were extracted from this sample.

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=what+is+adverb+phrase+pdf In PDF document text
    • http://files.kamcoent.com/uploads/1/3/2/3/132302824/4773626.pdfIn PDF document text
    • http://files.skramstadprimitives.com/uploads/1/3/1/3/131380728/veguji-tatalo-virebure.pdfIn PDF document text
    • http://files.merarifernandez.com/uploads/1/3/1/4/131407165/6839308.pdfIn PDF document text
    • http://files.fumckidsconnect.org/uploads/1/3/0/7/130739614/937b4f636a879.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/1/0431/7410/1160/files/65952009261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3423/8362/files/osrs_theiving_training.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/82971954621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/xasudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3797/2897/files/biwujir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/28912821023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/www_directv_com_rebates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4686/0960/files/sickle_cell_anemia_disease.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1393/0142/files/45476395329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6566/files/turefora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kevimofurerofujasopam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2541/3782/files/bopogukixutudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/24987911965.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_off00008043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8043 5308 bytes
SHA-256: f78e006c717303d8a35e944ed67d577826c958d2fef7e651c6a0074a5102b8d9
font_01_sfnt_off00009259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9259 10072 bytes
SHA-256: 8b2cf2117c2cfdc99bafd95f3f080cb73297af3dbde98c849eefd391660ff9cb

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