Malicious PDF — malware analysis report

Static analysis result for SHA-256 e27f98996e134dc3…

MALICIOUS

PDF

50.8 KB Created: 2020-08-04 06:38:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 73773cbca3ecd30137745a6256cd6b09 SHA-1: dd962b765d4beb47f6ac6ac1a37301e5cdfe3f4b SHA-256: e27f98996e134dc354809ab3709f387d9e0c75380357d5d85b3098dae0f18809
194 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to a known malicious URL, indicating a phishing or redirection attempt. The document body, though heavily obfuscated, contains the target URL and references to 'allium sativum medicinal uses pdf', suggesting a lure to trick users into clicking the link. The presence of numerous external PDF links further supports the classification as a link farm, likely used for SEO poisoning or 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=allium+sativum+medicinal+uses+pdf In PDF document text
    • http://sewusuve.thatclass.org/uploads/1/3/0/8/130813577/wumoj.pdfIn PDF document text
    • http://radakeze.hvswug.org/uploads/1/3/0/8/130874276/nobexiwite_sigibamunode_fazisuboraru.pdfIn PDF document text
    • http://files.heathbands.com/uploads/1/3/1/4/131407635/nakemewad.pdfIn PDF document text
    • http://files.zekveldgardenmarket.ca/uploads/1/3/1/4/131483488/350645.pdfIn PDF document text
    • http://files.classicalmusicanalysis.com/uploads/1/3/1/6/131606059/1449953.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9842/3967/files/64521792500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6214/0826/files/xizozudape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3534/4539/files/77392621414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/wejupubolegenusek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2658/7549/files/folusulupafabufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/xalujup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/93014878275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8596/3169/files/10573722417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/22083319651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugerivedisabuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/gixolivokadapatujenaviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ligumugazawebamupewav.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000777c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777C 5252 bytes
SHA-256: 90e0e444b33d77eeac5dde38dddffe5c945931e362b86ad06974b18af67cf945
font_01_sfnt_off0000894c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x894C 6376 bytes
SHA-256: efbd1a21f64b09be235b1e824ea2c7fca94746548d34e015076fb5d68a01e55f
font_02_sfnt_off00009a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A10 10320 bytes
SHA-256: c7141a80e73f1fee894a852146b9b5f0cc2badba5e030658caceec044a135ed1