Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4b5ed5f2aec8b1…

MALICIOUS

PDF

47.2 KB Created: 2020-07-25 05:42:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99960fe26b2dcf1c7c9fb0eaef7e21e1 SHA-1: 6f17c31f0de7c1a4dbfc956a0fd9c4812adda899 SHA-256: 7e4b5ed5f2aec8b1dadf1cc4a18dcc2b31b5ee9844b8663afc4f3f20efd1878c
194 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector domains, specifically identified as a malicious redirector and part of an SEO link farm. The document body, though heavily obfuscated, suggests a lure related to 'table of contents page template word'. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent, likely to redirect users to phishing sites or download further malicious content.

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=table+of+contents+page+template+word In PDF document text
    • http://files.elegantedetailssalon.net/uploads/1/3/2/3/132302970/rurilativelowo.pdfIn PDF document text
    • http://files.cenutrifit.com/uploads/1/3/1/4/131453284/14d47c0a38e0b3.pdfIn PDF document text
    • http://files.wectp.org/uploads/1/3/0/7/130775707/zufomif.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/1/0433/3492/6495/files/76720513774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8280/9497/files/zoxazigobapapogav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9055/8622/files/26174919347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/95678847985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/kedumazojamosamaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4062/8120/files/moduxabowoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4526/5312/files/bapivavafal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1614/2497/files/vamuwawutelidegosamajokum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7932/7130/files/kepavedumidibidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6977/files/31288199250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tikumakosesik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/mezepewegodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65587220918.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_off00007abc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABC 5396 bytes
SHA-256: 9d632c72255838939efdd7cdebdc5b8213ce37c6cbfff4dd4d7f83c9421ec9b0
font_01_sfnt_off00008d0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D0B 10036 bytes
SHA-256: 3fce15b9095f5b90d241c7a8da22ab665135b6f6fb85d2a27a8182cb57ad05be

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