Malicious PDF — malware analysis report

Static analysis result for SHA-256 e651e8fc3c4f1ee7…

MALICIOUS

PDF

53.3 KB Created: 2020-08-25 23:49:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ed7cc5e3549fc3512e54b951beb32d0 SHA-1: a4abcc522665f04304edf3c4040ebd37dcbbcc02 SHA-256: e651e8fc3c4f1ee7efb747f04bab9236e9e0cf9a088e74c7060f53c3df1a793c
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to benign Shopify URLs, but one critical link redirects to a known malicious domain. The document body text, though heavily obfuscated, contains the string 'Dark souls damage calculator' and the malicious redirector URL, suggesting a lure to trick users into clicking the link. The presence of numerous PDF links, many of which are likely generated for SEO purposes, indicates a link farm strategy to distribute the malicious redirector.

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.link/pify?keyword=dark+souls+damage+calculator In PDF document text
    • http://mozoxeg.team-change.com/uploads/1/3/1/4/131412290/modegavimurufiruwun.pdfIn PDF document text
    • http://files.craftyfoxstudio.com/uploads/1/3/1/4/131437516/mafubojiwowezitewe.pdfIn PDF document text
    • http://files.shcdc.net/uploads/1/3/0/7/130776296/7229306.pdfIn PDF document text
    • http://files.neperformingartsgroup.org/uploads/1/3/0/7/130739155/d0c158.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/1/0436/2112/2211/files/sale_agreement_format_in_tamil_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8298/7173/files/my_free_annual_credit_report_equifax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/9261/4824/files/30248857005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3019/files/watajogudolexetogumolugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6943/1959/files/wefitusukapuzoluwutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9351/4645/files/call_of_cthulhu_malleus_monstrorum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/averroes_search.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7712/4764/files/lafukedipaxoxafudejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/36723574102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6901/4177/files/46905622626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/24196923656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/negative_creep_bass_tab.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_off00008b39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B39 5320 bytes
SHA-256: 8527aab2d71878c75e7930d665b1168578d3865df06acbaac863274130c22ea0
font_01_sfnt_off00009d42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D42 13508 bytes
SHA-256: 7796d450122c3f5a190a56018d12b3789e6b6aa72ba00bfc52d1044f6f02bfc9

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