Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a3a4a8b158c6691…

MALICIOUS

PDF

43.0 KB Created: 2020-08-22 12:44:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 436458150ae271075635325994dc0930 SHA-1: 13308d8e99308bc056459285f8b44f9878f5ea0b SHA-256: 3a3a4a8b158c66912719dbf912eedf7287656f1bd68f3936fc2309e02789cdd3
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=bike+race+hollywood+movie'. This indicates a phishing or scam attempt designed to redirect users to malicious infrastructure. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous shopify.com links suggests an attempt to blend in with legitimate content while hosting malicious redirects.

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=bike+race+hollywood+movie In PDF document text
    • http://files.by-my-standards.com/uploads/1/3/0/8/130813364/17fc0.pdfIn PDF document text
    • http://files.clintconradauthor.com/uploads/1/3/1/4/131437246/9df487b9.pdfIn PDF document text
    • http://zufuwutuf.happytails.care/uploads/1/3/1/4/131455734/342f70c4.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/1/0431/4441/3341/files/analytical_essay_graphic_organizer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0301/0468/files/wudidewifupadez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/32896334019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2572/6614/files/accreditation_process_guide_for_hospitals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6615/4394/files/hebrew_and_greek_bible_dictionary_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6206/files/44889723739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0313/9480/files/estadistica_ciencias_sociales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/medical_laboratory_methods_and_tests.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 1

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_off00006a76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A76 5368 bytes
SHA-256: b0752a028db891de5b6fbe3ee448e9e8e93b74a413b29ee3be4e4d238fc9531a
font_01_sfnt_off00007ca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA3 10292 bytes
SHA-256: 52f42ebfcb926adaa4ec2a701c40c4ef51151d2a7f0c03fe3b8b5b423b3f883b

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