Malicious PDF — malware analysis report

Static analysis result for SHA-256 d070bff594bdf9f2…

MALICIOUS

PDF

79.3 KB Created: 2020-10-11 19:26:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-06
MD5: 44c6e107fdcbb18f96797ae4f40f716d SHA-1: 2d156200b15915fc542a90724b1766100f713760 SHA-256: d070bff594bdf9f26cba1f6df24a3e95871ae77d7e7ca7019b9cad46312a1391
184 Risk Score

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/strik?keyword=fred+asbell+wool In PDF document text
    • http://xepar.kirifarms.com/uploads/1/3/1/0/131071145/zadavuk-xojajezoxozanev-dukodu.pdfIn PDF document text
    • http://files.litchfieldarc.org/uploads/1/3/1/1/131164442/a0ba6.pdfIn PDF document text
    • http://files.exploitnomore.org/uploads/1/3/1/4/131437283/pufevogamixezu.pdfIn PDF document text
    • http://xewapitew.darkandfevereddreams.com/uploads/1/3/1/4/131437241/tuvovawo.pdfIn PDF document text
    • http://jesaboge.easthamiltonspiritualchurch.net/uploads/1/3/1/4/131483492/741147.pdfIn PDF document text
    • http://files.sunshinecoastcounselling.com/uploads/1/3/1/4/131407423/6456871.pdfIn PDF document text
    • http://files.postybirb.com/uploads/1/3/1/8/131871653/943284.pdfIn PDF document text
    • http://files.yournextapparel.com/uploads/1/3/1/4/131437041/bapega.pdfIn PDF document text
    • http://jodexomi.dartmouthcollegemsa.com/uploads/1/3/0/8/130813528/tepivuwolipotox.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000fa21.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000fa21.bin)
    • https://uploads.strikinglycdn.com/files/43ff7d86-693a-4212-8db2-0ae0cc93b89d/80732645409.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7cd5f21-1125-4595-9391-38ce1b78c159/bejovikawuboxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88e583f1-103f-48c8-8f64-808eb7a98c81/kubozame.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ee5d51a-d925-4e20-9362-44a5e2aed45b/80629743168.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f41447df-5d57-44f7-9e21-4bcf1a46ae5b/44634924594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/9523547531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4471/1847/files/46740403984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/78222740149.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 extracted file (font_00_sfnt_off0000fa21.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA21 5004 bytes
SHA-256: 923f0d058803057950e75f4b2ac02427c65cb055ea7d518b67cfebce7aceced2
font_01_sfnt_off00010b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B41 10848 bytes
SHA-256: 2d81fe205634a9c0634283baeded5d0bc511e7245c1a51162c9d6e91e61e349f