Malicious PDF — malware analysis report

Static analysis result for SHA-256 42090fea82bb01cb…

MALICIOUS

PDF

103.4 KB Created: 2020-08-23 15:16:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe497c3fff526f5d97f781102c37664e SHA-1: 65e6000832361ed4bfdefd0452a58df70cc37202 SHA-256: 42090fea82bb01cbe98c2a7a3094d07a1fd7ff68914cae90193bef8e550b0848
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to a URL that includes a wrestling theme keyword. This suggests a social engineering lure. The file also contains a PDF link farm heuristic, indicating an attempt to distribute links. The embedded URL is likely intended to redirect the user to malicious infrastructure for further exploitation or credential harvesting.

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=bray+wyatt+the+fiend+theme In PDF document text
    • http://files.nugierfroom.com/uploads/1/3/2/6/132682063/76fbe1.pdfIn PDF document text
    • http://retiza.pemtel.com/uploads/1/3/1/4/131438873/5da7bab78.pdfIn PDF document text
    • http://files.smiths2argentina.com/uploads/1/3/2/6/132695560/mugakebebip-rivupi-zirukulejozepe-xakenagenijux.pdfIn PDF document text
    • http://najabivov.preciousinvestltd.com/uploads/1/3/1/0/131070197/ravuwe.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/1/0432/8577/4491/files/81044651337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3598/1974/files/wesew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/lijizolekat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6403/3429/files/mizubedagujoleboxazuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8179/3698/files/figebipiwixuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8930/5501/files/close_account_wells_fargo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5199/1719/files/68654787529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0602/5128/files/rukig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0780/1504/files/bob_online_account_opening_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2408/0282/files/35462725799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1308/7142/files/wuxoxopepavodesema.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_off00015982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15982 5180 bytes
SHA-256: 598ba9bc50ac42056d96af447e104c3f1956d5dada37a8f1a1caefbe5b228b95
font_01_sfnt_off00016b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16B0D 10896 bytes
SHA-256: 059e78e77aaf8973d18f34f9bc47e5999b67f974240038eaf3cb7636f2cc42d9

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