Malicious PDF — malware analysis report

Static analysis result for SHA-256 abb3f549a6c8d290…

MALICIOUS

PDF

42.8 KB Created: 2020-08-19 20:17:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1cf96399020137c2a67c6cbf702ce539 SHA-1: 99932c2a4383961bc95504ba918029305ac60768 SHA-256: abb3f549a6c8d29086a0eae70e9344dcdcc57f85e0dc245315b8cbb32898eed1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, also contains the suspicious URL. This indicates a likely attempt to lure users to malicious sites, possibly for phishing or to download further malware.

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=animiz+animation+maker+apk++for+android In PDF document text
    • http://files.carlaposenjak.com/uploads/1/3/1/3/131380531/03e37efa3.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/1/0436/1289/7437/files/73412185021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0400/1443/files/retencion_placentaria_en_equinos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7158/9800/files/anand_srinivasan_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2658/6520/files/wemogewefiwuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1189/9551/files/context_clues_worksheets_3rd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7135/7596/files/76005119334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2653/5832/files/comptia_security_study_guide_exam_sy0-_501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3271/5163/files/xewelogegusevozimanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6621/9941/files/effectiveness_and_efficiency_in_organizations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4897/6032/files/wofux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2499/8819/files/zupebawatigumofuxikusevu.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_off0000646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 5080 bytes
SHA-256: 74e9841a8c3116851bfaf549343300bc54627313664c3515f6f50310c617b2a7
font_01_sfnt_off000075a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A7 12836 bytes
SHA-256: a4716e8a50650bd96fb52ec5c2d5be3ba36ad500e65f82714cf60ebb8fb77b00

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