Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bcdd12c768a1042…

MALICIOUS

PDF

40.2 KB Created: 2020-08-08 21:01:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2682d2574a1699fecfc21e45d6ce0157 SHA-1: 4407676cf8c963be21a5cc13ddffe13a569e57fb SHA-256: 5bcdd12c768a1042e73f82fd3b8ec854b6f614ac2a6c44c21ba78e1b31aafbfc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service designed for SEO spam and phishing. The primary malicious link, https://ttraff.com/wb?keyword=mindfulness%20in%20social%20psychology%20pdf, is identified as a malicious redirector. This suggests the document is part of a campaign to lure users to malicious sites, likely for credential harvesting or malware distribution.

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=mindfulness%20in%20social%20psychology%20pdf In PDF document text
    • http://files.lockmangenetics.com/uploads/1/3/0/7/130775383/nizejab.pdfIn PDF document text
    • http://files.yez.dk/uploads/1/3/1/1/131164047/4386632.pdfIn PDF document text
    • http://files.puertoricanparade.org/uploads/1/3/1/3/131382217/272f61714.pdfIn PDF document text
    • http://files.wrightthewriter.com/uploads/1/3/1/4/131453111/vutiv_suvemetej_minobekugiji.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/89898447874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7512/5919/files/corona_sdk_game_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/43590571361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3799/0805/files/asma_cardiaca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5351/3893/files/54847575176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6393/4109/files/analytical_mechanics_fowles_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9767/0303/files/sowexejokesoteluri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5712/6295/files/rapusipagajovofojozizov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7108/6485/files/zonaviginafuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7497/7945/files/cisco_ip_phone_spa504g_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6369/7817/files/lcsw_exam_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7301/0845/files/fekarulanasilegezer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5181/0969/files/tupenakevipazopugaw.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_off00006081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6081 5428 bytes
SHA-256: a680c843622e6de5e23ad31a43ffe6a1d8b95686be72e567809478658ebb57e6
font_01_sfnt_off00007317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7317 9544 bytes
SHA-256: 6fcc13229bcecf2fd6c7e307cfbdeb86a693f68b992c09e020536532197cc898

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