Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bb380b94dba893…

MALICIOUS

PDF

47.6 KB Created: 2020-08-15 03:37:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6af6648f0971cea6453adca3ef7f7839 SHA-1: 565021639ed41d4473eb755b970a7145472459dd SHA-256: 72bb380b94dba893ebfcd3fc909ae89432b8393c464e3204f2d370aa797313c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links, with a primary link redirecting to a known malicious domain. The document body, though heavily obfuscated, contains text that appears to be a lure for a spreadsheet, likely to trick users into clicking the malicious link. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to distribute the 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.com/pify?keyword=pathfinder+druid+wild+shape+spreadsheet In PDF document text
    • http://tonepa.manilaaudioclub.com/uploads/1/3/1/4/131438539/dedotegivix-raluk.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/1/0430/4646/9793/files/44145185415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/rivumibufigirorisixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9815/2866/files/acculturation_and_enculturation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8913/files/febrile_neutropenia_in_pediatrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6246/7489/files/integration_by_substitution_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5164/6119/files/pathfinder_path_of_war_expanded.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7910/6724/files/get_happy_the_life_of_judy_garland.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/joxevaripuxekavive.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 1

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_off00007f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F00 5220 bytes
SHA-256: 0dcb88f3d73cc02b9cd1aa08310e4d5c0d2d4ff9d5c1dcf4f59410cf41df39c9
font_01_sfnt_off000090c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90C8 9780 bytes
SHA-256: 10a4c846275fc38894e5758e19ce3d380145cda83d9e9e5543765237cf9a6752

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