Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5ddd3660cdf6e38…

MALICIOUS

PDF

33.7 KB Created: 2020-10-05 15:14:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-06
MD5: ed7171318c9813b0a0f1a8bf1ae02ed2 SHA-1: 819c5869b9a0fc651cc09bd2df760590c39b2434 SHA-256: b5ddd3660cdf6e38b378180ba8523ce952da961bb61904e862c87f67f98d2653
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://ggtraff.ru/strik?keyword=arqueologia+b%25C3%25ADblica+randall+price+pdf In PDF document text
    • https://site-1036756.mozfiles.com/files/1036756/sigagekekasuza.pdfIn PDF document text
    • https://site-1040975.mozfiles.com/files/1040975/31044891661.pdfIn PDF document text
    • https://site-1036971.mozfiles.com/files/1036971/zepexuxenidi.pdfIn PDF document text
    • https://site-1039768.mozfiles.com/files/1039768/savaxalivikifonoxebikotox.pdfIn PDF document text
    • http://podon.playwithfireproductions.com/uploads/1/3/0/7/130738568/vajowoxalovikim-relexo.pdfIn PDF document text
    • http://files.tomcatsseacadets.org/uploads/1/3/2/6/132695663/f9118013.pdfIn PDF document text
    • http://files.langlade16620montboyer.com/uploads/1/3/0/8/130814066/7802897.pdfIn PDF document text
    • http://files.reneedunbar.com/uploads/1/3/1/4/131437770/futukigi.pdfIn PDF document text
    • http://gawisa.bodycraftacupuncture.com/uploads/1/3/0/7/130776741/bulim_fipatunemalijo.pdfIn PDF document text
    • https://site-1038868.mozfiles.com/files/1038868/2408067351.pdfIn PDF document text
    • https://site-1037135.mozfiles.com/files/1037135/kilutu.pdfIn PDF document text
    • https://site-1038575.mozfiles.com/files/1038575/14268300074.pdfIn PDF document text
    • https://site-1040769.mozfiles.com/files/1040769/wesogitekarutofewuvig.pdfIn PDF document text
    • https://site-1037103.mozfiles.com/files/1037103/94755495926.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000444d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000444d.bin)
    • https://uploads.strikinglycdn.com/files/92e1f3ea-c05e-4f4f-85b1-14dca5da9e85/17357255101.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0338718f-b775-4c5b-ad7a-b248ae87b128/73484801935.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_off0000444d.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000444d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x444D 5452 bytes
SHA-256: 9837859b16546bedf0ef0b94de0869d3605696b7285d09c9af6401a4d02d27e5
font_01_sfnt_off000056e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56E3 9680 bytes
SHA-256: 294d000f2c75aeaf4b78fd7df02d1bde6bee5c6ab31b92767addbad985a71f27