Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc405b158dce049a…

MALICIOUS

PDF

42.0 KB Created: 2020-08-25 17:46:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 498f31c194c90d4f3446c439e19dd3e8 SHA-1: 95a85fd36003cd7b2cbeebea2674f12dff23d19e SHA-256: cc405b158dce049a60ffa93b7a49bb6e13a3ecf11ac532472fbebf517813840b
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=form+fillable+character+sheet+dnd+5e'. Additionally, another critical heuristic indicates a PDF link farm with 30 external PDF links, predominantly hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains references to 'form fillable character sheet dnd 5e' and the wkhtmltopdf application, suggesting a lure. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=form+fillable+character+sheet+dnd+5e In PDF document text
    • http://files.12thstreetbaptist.net/uploads/1/3/0/7/130775655/wadis.pdfIn PDF document text
    • http://files.ether1227.com/uploads/1/3/1/4/131438240/fofexefujuguxeme.pdfIn PDF document text
    • http://files.pbresult.org/uploads/1/3/1/4/131406736/xuzaxiwo_pulakaliregen_wubolujin.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/1/0433/5104/8357/files/porakosavovaxuvaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0629/4176/files/bebok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7624/7967/files/98498520734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0083/7782/files/97375321162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1645/3272/files/zepoferuxenikibesatabujek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/7966927168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/14284874192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6889/0782/files/20612540056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0755/7275/files/54531806043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3621/1362/files/redilemuvodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5090/7286/files/dagono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5388/3293/files/aprender_a_tocar_guitarra_clasica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7190/5698/files/basic_engineering_drawing_for_first_year_diploma.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 2

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_off00006550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6550 5480 bytes
SHA-256: 1aecccca95a41ccfbcbabbcbbb8dec8ccd45745a4113c8997c4555b8b4634a97
font_01_sfnt_off000077ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CA 10420 bytes
SHA-256: 58639764ad322fcd2961a1cfefb1d3f0798fc51c5829be39dd8dc58ca3b52b08

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