Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e3e26214cfa757…

MALICIOUS

PDF

43.0 KB Created: 2020-08-09 05:57:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d2168798a75989018a812ba35ed0c9a SHA-1: 3c9bb456c911c875566b6823d3985380ca97c3c8 SHA-256: 67e3e26214cfa7576332b846cf4b96b0a8995b26097aa1d66dc66247726cec6e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, many of which point to a redirector service known for hosting malicious content. The document body, though heavily obfuscated, contains text suggesting a lure related to 'interview questions' and includes the malicious URL. This indicates a phishing attempt to redirect users to malicious infrastructure.

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.ru/pify?keyword=analytical+research+and+development+interview+questions+pdf In PDF document text
    • http://files.leegroszracing.com/uploads/1/3/0/7/130776069/vagirem_firem.pdfIn PDF document text
    • http://files.sailingcruisingscotland.com/uploads/1/3/2/7/132712315/jataz_pikelaru.pdfIn PDF document text
    • http://files.thestringbean.com/uploads/1/3/1/4/131437982/ledigukemenezol.pdfIn PDF document text
    • http://files.faloonaagency.com/uploads/1/3/1/4/131437283/nikiwubobelo-mosunonelu.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/1/0440/7748/2136/files/3d_printed_gun_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/someone_anyone_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1110/3128/files/mafia_2_free_roam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6268/8918/files/77602515902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/prairie_bonnet_pattern.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/vutumuzesifuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/babifavubukofibim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/46692158964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8460/1752/files/nejajiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/64453812352.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_off000067e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E7 5764 bytes
SHA-256: b167f796b465d3e74e75da29c173ba72d778aceb673b054dcb7a7d1395c091c6
font_01_sfnt_off00007b7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7A 10288 bytes
SHA-256: 1a705f4dc650e01a045cd47787550df2d354ff1a67dcda8f85e5673d2177c013

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