Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a0eca9d58c8de3e…

MALICIOUS

PDF

59.0 KB Created: 2020-08-13 13:28:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80b398834d3d69bebaa393c46386f940 SHA-1: 0ab08799563ac0340d92ce577ed993d2855c9bdf SHA-256: 6a0eca9d58c8de3e9603ffb6328567ea2e53babf27b5c81387984963c453f66e
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wb?keyword=erik%20erikson%20theories%20pdf', which is also flagged by heuristics as a malicious redirector and an SEO lure. This suggests an attempt to trick users into downloading further malicious content by disguising it as academic material.

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/wb?keyword=erik%20erikson%20theories%20pdf In PDF document text
    • http://files.barbierhodesdancestudio.com/uploads/1/3/0/7/130775045/7114605.pdfIn PDF document text
    • http://tipapemil.kindred-strategy.com/uploads/1/3/1/6/131637036/8634018.pdfIn PDF document text
    • http://piraxijo.directrvparts.com/uploads/1/3/1/8/131857631/mogaxezerawu.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/1/0441/1087/2728/files/bacillus_subtilis_morphology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2856/0547/files/developmental_psychology_childhood_and_adolescence_shaffer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2036/7510/files/cedaw_un.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/carcinoma_basocelular_pronostico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/nesoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97253363073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3553/files/50046131353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/5035/5099/files/cancer_de_pulmo_resumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/xuvisakozonatejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bodadajigewodozisidezufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/lener.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_off0000ab65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB65 4908 bytes
SHA-256: 6f5140289d3a8dda9ca7771479a4008922777a928dfb9aef29076fcb9df64aac
font_01_sfnt_off0000bc12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC12 10256 bytes
SHA-256: a46be98aba70afd02148e874746dd88844de8635452a437dc6c17143ae0c233f

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