Malicious PDF — malware analysis report

Static analysis result for SHA-256 7419c825fc1c1907…

MALICIOUS

PDF

46.0 KB Created: 2020-08-15 06:40:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93b2b0180cb79610e6b22899948cd3ef SHA-1: 4a5ba49ab29db93a26922ce4a132a7778764f09f SHA-256: 7419c825fc1c19071b02ba00b70c1cd8957480b7f1cbd763b2b833d1ddbcb5e9
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, disguised as a software download. This is further supported by heuristics indicating a malicious redirector and a link farm, suggesting a phishing or scam attempt. No scripts were extracted, but the embedded URLs and document body content point to a social engineering lure.

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=offline+android+app+maker+for+pc In PDF document text
    • http://files.tjmartialarts.com/uploads/1/3/0/8/130873804/wibumugafowezu.pdfIn PDF document text
    • http://maladuzu.fijileaks.com/uploads/1/3/1/6/131607131/1e4b08cc.pdfIn PDF document text
    • http://files.southpreschurch.org/uploads/1/3/1/4/131438583/rivepoda.pdfIn PDF document text
    • http://files.justksd.com/uploads/1/3/0/7/130740392/foxazani-jivikesote-zinadi.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/1/0435/5833/8715/files/43759050915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1514/2551/files/usb2_0_crw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4228/3432/files/59524093853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81397135942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0843/1004/files/exercises_present_simple_passive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3177/3852/files/cds_ota_syllabus_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4648/3606/files/10627682397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5636/4709/files/94035932524.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E8 4924 bytes
SHA-256: 1e16fc6d247d24f322041ea6c97386b3c7dc39a49460bff5f2237d4cf98deab5
font_01_sfnt_off00007987.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7987 10352 bytes
SHA-256: 02730c88d0d6c4beb70f07c4e739d171031ab1773246470df70c54156280d150
font_02_sfnt_off00009cff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CFF 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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