Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e7436111969005a…

MALICIOUS

PDF

32.6 KB Created: 2020-08-01 14:50:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6540032596141c627e248710484d2713 SHA-1: 08eca7d1479623eb2c1e79e859196e2cca3d6eef SHA-256: 7e7436111969005a53958bbfeb3b6705f0919c8a420dcc7239c815ea25015276
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The ML classifier strongly indicates maliciousness, and the heuristic firings confirm the presence of malicious redirector links and a link farm designed for SEO manipulation, likely to disguise phishing or malware distribution.

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=hunter+xc+manual+pdf In PDF document text
    • http://files.sig10-cleaning-decontamination.net/uploads/1/3/1/6/131606092/xebonitibivawo_kubaxefupat.pdfIn PDF document text
    • http://files.kkstechtips.com/uploads/1/3/2/6/132683484/lodusipawuneva-rotafivuwexil-mekopegagopumak.pdfIn PDF document text
    • http://files.usawildcats.com/uploads/1/3/2/6/132695582/b517f26.pdfIn PDF document text
    • http://files.cascadebga.org/uploads/1/3/2/6/132682076/1049473.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/1/0434/0501/7253/files/niluzopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9358/9142/files/wobukuxijatuvupoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/superior_drummer_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/23258472103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/gerulojagufudum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6600/7445/files/32641321473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7808/1955/files/rs3_family_crest.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/xumisezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2564/4192/files/wedituvugifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/nosir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2097/files/13593074652.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_off00004494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4494 5152 bytes
SHA-256: b26bb0ba58e08f55e3cf2a1e3fdc00dfb14d8b6c332e6744d1ba2d1d1f10d750
font_01_sfnt_off00005609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5609 9404 bytes
SHA-256: ca8798259255914109a6e6d4d2da59b36f1c6e5f9e2349cda598861ba91b094e

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