Malicious PDF — malware analysis report

Static analysis result for SHA-256 897b2c769a763e1b…

MALICIOUS

PDF

46.9 KB Created: 2020-08-19 15:11:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: be71faec3d19ca7cd0b38e56e2daae0a SHA-1: 35467fb06086b78fe784a79a8deb015f72f0f1be SHA-256: 897b2c769a763e1be9a4d1c20f7f0b60ed76034053b56812286e1d0975d8873b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body also contains the same redirector URL, suggesting an attempt to trick users into clicking it for 'free action movies'. The ML classifier strongly supports the malicious verdict.

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=free+action+movies+to+watch In PDF document text
    • http://files.eng.thehubofarts.net/uploads/1/3/2/8/132815365/rutudawod.pdfIn PDF document text
    • http://files.pdescape.org/uploads/1/3/2/6/132681536/74d35e.pdfIn PDF document text
    • http://files.staychampaign.com/uploads/1/3/2/3/132303126/vexomu-tanuwivefowemel-fozifosasewage-tobura.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64830269039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/12743830093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/susowizanuvaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4568/2332/files/rainfed_agriculture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2407/9254/files/bijuvotifexafaxel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/70629394092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6413/0710/files/aberturas_de_xadrez_para_leigos_completo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5209/0022/files/mavoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6583/4649/files/minecraft_pe_0._12._0_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/risk_of_rain_2_sticky_bomb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/best_voicemeeter_settings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1993/4628/files/revivevu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C42 4904 bytes
SHA-256: 3597a62b682a0b78d78d607e139d4aa7acd75b13b14ea500de9066af64963ee4
font_01_sfnt_off00007cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC5 10436 bytes
SHA-256: 90db913fcadbb5f993f6f54fd926af9eff1ac4b9589828034716e7da03a9c729
font_02_sfnt_off0000a09f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA09F 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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