Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0bfd5bbaebbfdf…

MALICIOUS

PDF

44.5 KB Created: 2020-08-13 14:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c58b99fa3710db291f02b35259b770d SHA-1: cd92fc80948c4501037cf27ffc9f160b928a1329 SHA-256: 7a0bfd5bbaebbfdfb5464216a8e963d48e830f92f79feb59caccd6c558e0e892
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which redirect to a malicious domain. The document body itself contains a lure related to educational materials, suggesting a phishing or scam attempt. The primary malicious IOC is the redirector URL, which is used to funnel victims to potentially harmful 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.com/wb?keyword=english%20ncert%20book%20for%20class%209%20literature%20reader%20pdf In PDF document text
    • http://files.harborimpactministries.com/uploads/1/3/1/4/131483138/426240.pdfIn PDF document text
    • http://ketumi.thirdcoastavanti.com/uploads/1/3/0/7/130775493/5352251.pdfIn PDF document text
    • http://files.ronanboudier.com/uploads/1/3/0/8/130814226/bejeremof_mixitom_fasego.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8761/8463/files/certificate_of_origin_gsp_form_a.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5883/2294/files/fanubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/47154683202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/78723161982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1350/3133/files/ninonukomipunanuligupug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9428/5218/files/batezaxopezanuzid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/lujagafirinasej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0804/0853/files/bufowofidaseda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3470/9914/files/normal_hematopoiesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2679/1075/files/catering_company_business_plan_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1570/8573/files/jogonoteve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9567/8359/files/8889807869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/how_to_convert_cdr_file_to_format.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 5

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_off00005f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F99 5732 bytes
SHA-256: 56dfbbecb2f9c6ba476d7d29dcaeaf90d8beab943f65399682cc9ca771d5e499
font_01_sfnt_off00007302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7302 9916 bytes
SHA-256: c8ed4b9f0552fc3bf48d52e71de3f2d904676b7e0d904691a9ffde7e1b848004
font_02_sfnt_off0000953e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x953E 3944 bytes
SHA-256: 454c93c9487f964d8212944917a0e4acead5c4824033517cc87dba84d73720c5

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