Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ab2a207979314b4…

MALICIOUS

PDF

44.9 KB Created: 2020-08-08 13:28:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1d5926f644decab11b0af58faa44177 SHA-1: 6aff244924ed82d9f3cc150cbc7db5543b0a0061 SHA-256: 5ab2a207979314b4ce9f6689b5a218337738bdd3e3c59f17f5ce6a8522029b20
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many pointing to a redirector service known for malicious activity. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to manipulate search engine results for phishing or malware distribution. The document body, though heavily obfuscated, contains the primary malicious URL, indicating the file's purpose is to redirect users 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.cc/pify?keyword=moment+area+method+pdf In PDF document text
    • http://files.publichealthmuseum.org/uploads/1/3/1/3/131384789/a826b1b39.pdfIn PDF document text
    • http://tatipe.woolacombesurflifesavingclub.org/uploads/1/3/1/0/131070420/nogoteberodob.pdfIn PDF document text
    • http://files.disruptivenewyork.com/uploads/1/3/1/3/131379111/8785562.pdfIn PDF document text
    • http://files.oneidcolumbus.org/uploads/1/3/1/8/131856827/9d0e80c727b33.pdfIn PDF document text
    • http://files.hoffmanindustries.org/uploads/1/3/1/4/131413678/mubezifuder_wusagafulekane_bexapujukozuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0575/files/52212440581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4574/6848/files/john_deere_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/81043174309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/bebagit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/8775320406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5294/8901/files/escaped_alone_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1626/3592/files/38303988682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0407/9777/files/acgih_exposure_limits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6100/9829/files/53895311498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4492/1766/files/pemiruxegiburonodeniz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/8429/5847/files/88864758611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/microsoft_annual_report_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7970/3451/files/voxamuzavurozavuwakibovak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5891/2662/files/cancer_de_mama_definicion_oms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/jonenasag.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6585 4816 bytes
SHA-256: d2690e42d710ce81ec6cda3a33957d97b828567dc1271f16548ea11660cf3afc
font_01_sfnt_off000075a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A9 10124 bytes
SHA-256: 2323ab664dd1f2e0a10e5a010dddb7198eac8efd9c0ff1a42ee77a1e6315ce5b
font_02_sfnt_off00009838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9838 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378