Malicious PDF — malware analysis report

Static analysis result for SHA-256 120c26efd43c2a7e…

MALICIOUS

PDF

44.3 KB Created: 2020-08-10 03:15:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 009ea88581bb5bbd0e0681b7f3edb5dd SHA-1: babc87c8b8c2b71a585d8aa7ddd3c76c58001929 SHA-256: 120c26efd43c2a7ee63c283893eeeb8c79b469d37b44b1b54936bc9c0e2a8ae2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector, ttraff.cc. This redirector is likely used to obscure the final destination of the malicious payload. The document body text and embedded links suggest a lure for users to download further content, potentially leading to malware execution.

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=above+the+line+promotion+pdf In PDF document text
    • http://zabitowuf.ohiooutdoorstructures.com/uploads/1/3/1/6/131606490/sijusupogepokupo.pdfIn PDF document text
    • http://files.elkhornvalleyhrc.com/uploads/1/3/0/8/130874612/8397628.pdfIn PDF document text
    • http://files.venlas.com/uploads/1/3/1/4/131482884/gomineximesoravaj.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/1/0436/0473/8206/files/76849875660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3762/9348/files/zutuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/curso_completo_de_economia_em.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0008/6175/files/karepapemajesazifidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5529/2321/files/24078439559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2117/0850/files/97258975469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5077/0333/files/82267806404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/simple_antonyms_and_synonyms_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0057/3601/files/nier_automata_official_strategy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2565/2117/files/factorio_load_balancing.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_off0000709e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709E 5080 bytes
SHA-256: b705c2861c833f87422e3cc10aaee6b11474aa4c9cb821e05cccf1540d92c110
font_01_sfnt_off000081be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81BE 10192 bytes
SHA-256: 0aa5efc7841cb9b9ee550d1b59867c81696d165335762c5c1b111149e86e6c5d

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