Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd5419507fefd95b…

MALICIOUS

PDF

46.5 KB Created: 2020-08-08 00:51:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 115558aee482177ba9a6c2e34716d055 SHA-1: 7f0067087f93cd79bdbee2588f63369520659d1c SHA-256: fd5419507fefd95b2159038b8540523c0d5927da4f391859dcf646774cf4d5a3
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'resume writing samples pdf' and the malicious URL. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=resume+writing+samples+pdf In PDF document text
    • http://files.advancematerialrecovery.com/uploads/1/3/1/4/131454297/995fd54b60.pdfIn PDF document text
    • http://files.foodallergyconnections.com/uploads/1/3/1/4/131454216/9149812.pdfIn PDF document text
    • http://files.greenlightinspection.com/uploads/1/3/0/8/130813428/dibisoke-janofupesaji-wegijagikit-vubiponiz.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/1/0439/4126/5566/files/lavixojilagisutexevataxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6473/files/26377975042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/tajiruranuguvakepobogol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2920/6939/files/how_many_graham_crackers_in_a_cup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0924/files/what_is_form_8862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/sisubomotoxazeditenekewad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/47919535816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5933/9679/files/92686189516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/21777263355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/magoxirefesoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/zogutobapisivuvonaji.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 5

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_off00007774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7774 5460 bytes
SHA-256: c2dcf2c106f336940079780be90f26bf8c54932df6cd7705720b341419eb0e30
font_01_sfnt_off00008a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A02 10412 bytes
SHA-256: a5cd3f624e3b0350a7faaea64dbb8e55ab677ea3d97d002a67c3f74b3326750f

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