Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d206f5449fde394…

MALICIOUS

PDF

38.4 KB Created: 2020-08-14 09:36:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 385c8026516ebc01289cff3d9d35191e SHA-1: 144ebeaeefee5f43ba9135ebb1f5d2939c10f2b6 SHA-256: 2d206f5449fde394599748b6600783412e6e2b0e5054598a9be81d79c2acf9e2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text related to a worksheet and also includes the malicious URL. The presence of numerous external links suggests a link farm or redirection strategy to distribute malicious content.

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.ru/pify?keyword=pangngalang+pantangi+worksheet+for+grade+5 In PDF document text
    • http://nusum.valkyrieglass.com/uploads/1/3/1/3/131383613/wipunidebewi_vajivuvumixip_wobilu.pdfIn PDF document text
    • http://files.reneytours.com/uploads/1/3/2/7/132740457/0eb9a28d.pdfIn PDF document text
    • http://files.brandnewdaywellness.com/uploads/1/3/0/7/130739284/1926600.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/1/0430/9201/7305/files/cardiac_rehabilitation_aha.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5192/6183/files/61025146240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/catalytic_hydrogenation_in_organic_syntheses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5464/4894/files/27944006426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/puvapilediwusejaken.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1791/0941/files/tedov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9181/2771/files/revised_common_lectionary_year_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kaxoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wupukibasabozuxijixosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/83002494172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3692/6374/files/gould_s_pathophysiology_for_the_health_professions_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1063/7475/files/85247384990.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 3

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_off00005782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5782 5584 bytes
SHA-256: c7a4ea25b8d77fc5ae77d27945fe24e9c9a34b406fd81c607f4f3f570d344acf
font_01_sfnt_off00006a8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A8C 9908 bytes
SHA-256: e65775e508ea0eddf1ef5f1690067d00fe4ae992ea974b354e8966f71da1cee2

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