Malicious PDF — malware analysis report

Static analysis result for SHA-256 80710a03461054b2…

MALICIOUS

PDF

46.6 KB Created: 2020-08-25 15:28:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e309562c822145f147b655a8d2452da7 SHA-1: 2ad82ab0103bd791aacdea643a98e5a7dac175a7 SHA-256: 80710a03461054b2208c6d2941e91bd3902a56d4cd6f47e3ee78c4b4fe1cd0d2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector URL that is flagged as malicious. The document body, though heavily obfuscated, contains text related to a 'leave application format' and the malicious redirector URL, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

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=format+for+leave+application+in+school In PDF document text
    • http://gunaduti.umcreationcaresummit.org/uploads/1/3/1/6/131606490/lokunigaxonade.pdfIn PDF document text
    • http://files.blitzhomebuilders.com/uploads/1/3/1/0/131070497/68f7323b969.pdfIn PDF document text
    • http://ritusigid.runninonfaithtc.org/uploads/1/3/0/7/130775358/7634734.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/1/0435/5804/3797/files/whirlpool_refrigerator_manual_wrf555sdfz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1777/0920/files/kivokabomefinokok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2476/9436/files/4591558071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2650/5118/files/jivajogubewudeposutegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5301/3409/files/xozitifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9799/6955/files/volkswagen_jetta_2017_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/9098474913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9464/files/general_comments_for_report_cards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/xilebozena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2545/7575/files/bank_preparation_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8750/4294/files/73656618149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1457/6538/files/lexus_sc300_manual_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8233/4617/files/famozejujavexepujusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9590/8761/files/66411007371.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_off00007937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7937 5272 bytes
SHA-256: 4a74afccf69dfe9361f9b9c51a55a3b6d253a67b0d1da74a4b9f0fbfba6bcdd5
font_01_sfnt_off00008b01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B01 10120 bytes
SHA-256: bd0e599da051707beca6ee698833beae7320b9751a15edb267e093e02dd56584

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