Malicious PDF — malware analysis report

Static analysis result for SHA-256 f94708b418a22500…

MALICIOUS

PDF

55.0 KB Created: 2020-08-25 10:09:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c5168b7b0f78656400e59a44f8caf94 SHA-1: 4653031e6f9810a174fa4016d78b92f0c8c858ae SHA-256: f94708b418a2250040a2bf74d23504f022677a487e0a557d8960fb295e9c469e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with one prominent URL leading to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'sds sheets in spanish' and the malicious URL 'https://ttraff.cc/pify?keyword=sds+sheets+in+spanish'. This suggests the document is a lure to redirect users to malicious content.

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=sds+sheets+in+spanish In PDF document text
    • http://files.smokepitfairytales.com/uploads/1/3/2/6/132695397/bc7047cce9ec.pdfIn PDF document text
    • http://files.mymeanderingmusings.com/uploads/1/3/2/6/132681062/2696347.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/nudewetujodonewuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3739/9960/files/91481947767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9964/4314/files/muwosexexeviribajasetit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/vepudijiwafag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/kuvije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0550/9533/files/gifomejanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/calculus_concepts_and_contexts_james_stewart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8410/2297/files/aspern_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/58055245251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0927/2990/files/wepusidudepenuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/adobe_spark_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7520/5288/files/30590214991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9866/7163/files/cardiac_rehabilitation_phase_2.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F47 4700 bytes
SHA-256: 740efa6ba5e23b269ffaebef97f912f47e8bc20458a4859ee9ad6216efad10ab
font_01_sfnt_off00008f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F23 16036 bytes
SHA-256: 061a5188f216be2307eb55936cc804fe8ba244290d8e5c0843bc85de3fd2f0bf
font_02_sfnt_off0000c10a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC10A 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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