Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae3d6b14c7f20c1…

MALICIOUS

PDF

39.4 KB Created: 2020-08-07 12:48:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acf960113c3e1ac73d02fcd268dcccb3 SHA-1: e5c002d8a8be7139901c6cf1732fa286013a46ef SHA-256: 5ae3d6b14c7f20c13f16463f5880cf66dd40356612637e8509453efd37c90efb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, many of which point to a redirector infrastructure. The primary malicious link, 'https://ttraff.com/pify?keyword=brocas+de+perforacion+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to a potentially harmful website. The ML classifier 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=brocas+de+perforacion+pdf In PDF document text
    • http://files.susankralovansky.com/uploads/1/3/1/8/131871762/1922139.pdfIn PDF document text
    • http://files.conditionsforlearning.com/uploads/1/3/0/9/130969430/7320064.pdfIn PDF document text
    • http://files.michaeljcrites.com/uploads/1/3/0/7/130775858/bigokaji.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/1/0437/1261/0472/files/rumekififetisatudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/tabazotebopifez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53446206952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3685/1874/files/cgeit_review_manual_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/909040323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1373/4563/files/beliefs_of_christianity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9301/6222/files/26509963192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4855/1068/files/kelso_mo_topix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1787/1255/files/tudebagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4733/5574/files/74972105639.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 7

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_off00005cdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CDB 5164 bytes
SHA-256: 1c4ccd3d60d0ff304a19bed6a4c6dd3056556d534ed7c62e8b3ac8af4a0b0890
font_01_sfnt_off00006e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E79 10624 bytes
SHA-256: 280e58821b101508c0c32b662c78ce70ff9efe3516b08fad6011d20f4b672d41

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