Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9ae0550c106e231…

MALICIOUS

PDF

41.2 KB Created: 2020-08-11 08:02:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e5fc2e92979662e9b0cfef077a26c05 SHA-1: 1625961ec9082f5c91d35d5c67468c4e2cd467d4 SHA-256: c9ae0550c106e2311accc670076c27c28fcda4e8346e9859adbd7c8890ec69d1
214 Risk Score

Malware Insights

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

The PDF file contains numerous links, with a primary link identified as a malicious redirector. The document body and heuristics indicate an impersonation of a document signing service (like Adobe Sign or DocuSign) to trick users into clicking the malicious link. The primary malicious URL is 'https://ttraff.com/pify?keyword=sign+adobe+pdf+on+iphone', which likely leads to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Document signing service impersonation lure medium SE_DOCUSIGN_LURE
    Document impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context
  • 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.com/pify?keyword=sign+adobe+pdf+on+iphone In PDF document text
    • http://files.puzzlesandbraingames.com/uploads/1/3/0/7/130739472/pubuviwodo.pdfIn PDF document text
    • http://files.boldcupofcoffee.com/uploads/1/3/1/3/131384214/jofezefun-rejagatavunij.pdfIn PDF document text
    • http://files.calicoastco.com/uploads/1/3/0/8/130814227/75157.pdfIn PDF document text
    • http://files.honmoto.com/uploads/1/3/0/7/130776298/3b04858e05c642.pdfIn PDF document text
    • http://dagajuse.sadielansdale.com/uploads/1/3/1/3/131398140/83e17f9a47.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/1/0433/7221/6483/files/hazardous_waste_management_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6284/3797/files/peanut_butter_making_business_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2856/files/32222491683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/vowenufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6277/8264/files/agenda_2020_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6498/3701/files/91048879247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8674/0646/files/56023079037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7179/9449/files/18254145143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/kebadibunurumafifubikukum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5045/0600/files/mods_para_minecraft_1._8._3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/ledukokakazodas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/walabapofudupelasipabu.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_off000063b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B0 5240 bytes
SHA-256: 1e7bc76a235db26fcc18f5a8d185e34812608410b4dbd5bc8fd25d9a3a28599e
font_01_sfnt_off00007577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7577 10112 bytes
SHA-256: f0077ad70d811b27302b7a7507e1ecb123283ae0307d042360636d9e572f3ff7

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