Malicious PDF — malware analysis report

Static analysis result for SHA-256 802741fc7943ba2f…

MALICIOUS

PDF

46.0 KB Created: 2020-08-03 04:52:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 22186f9aa63560d987fd66f7d6522f1e SHA-1: e07f61b26dc40f4999fb11eedabfdbeaa2c478b2 SHA-256: 802741fc7943ba2ffc6ac0887bc48eaeafc5fc03a3e48ac9a89050d105e55194
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a redirector infrastructure, identified as a malicious link farm. This redirector is designed to lure users with keywords like 'reported speech worksheets class 8' and then directs them to potentially harmful content. The ML classifier strongly indicates maliciousness, and the presence of numerous external links points towards a phishing or scam attempt.

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.cc/wb?keyword=reported%20speech%20worksheets%20class%208 In PDF document text
    • http://files.childrensfocusfoundation.org/uploads/1/3/1/6/131606262/modakizedijomigegime.pdfIn PDF document text
    • http://files.pottershouselismore.com/uploads/1/3/1/4/131453393/975679.pdfIn PDF document text
    • http://files.maycontainnotes.uk/uploads/1/3/1/8/131856476/selixorada.pdfIn PDF document text
    • http://files.quietlegend.com/uploads/1/3/2/6/132695633/40a14b0ff7da3.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/1/0438/0606/4801/files/88422351639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/wujoxatafozigolatusisem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/33837680259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8967/3883/files/gezukujaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6113/9861/files/xbox_controller_keys.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15843942414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/depusulolunifanilux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26443777516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/73433344157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2677/5196/files/43165584282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26433336276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3096/9511/files/lapuferirigu.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_off00007644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7644 5516 bytes
SHA-256: 5dcf6aecc2ec400d793972d8fdfeb47c105c9be23492cf05e2f3ee788f7a4ef8
font_01_sfnt_off00008914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8914 9928 bytes
SHA-256: 8146d493a5e2daab79f2de578cb7eaf5be9db043d8e4fae244fe35d1b2a6aae2

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