Malicious PDF — malware analysis report

Static analysis result for SHA-256 e36d07445d952887…

MALICIOUS

PDF

41.1 KB Created: 2020-09-17 19:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7776124f8331bfd0b2ae281793687692 SHA-1: bc11bf717cf9210357ea273b98d7e4149bd9a986 SHA-256: e36d07445d952887d04b733156b5e20169570d646320f8d8a89a47cdb13dff18
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, identified as a link farm. One of these links, 'https://ttraff.link/wix?keyword=dallas+observer+backpage+classifieds', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to 'Dallas observer backpage classifieds' and numerous URLs, reinforcing the lure. The primary attack pattern involves redirecting users to malicious infrastructure.

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://ttraff.link/wix?keyword=dallas+observer+backpage+classifieds In PDF document text
    • http://files.anamcharaministries.org/uploads/1/3/0/7/130739826/taliwenabuwe.pdfIn PDF document text
    • http://kavor.newagehomerenovations.com/uploads/1/3/0/8/130874620/6356609.pdfIn PDF document text
    • http://files.thebluedaisyandco.com/uploads/1/3/2/8/132814791/4093011.pdfIn PDF document text
    • http://jutes.georgepaulmiller.com/uploads/1/3/0/7/130776485/fuber.pdfIn PDF document text
    • http://files.thedemeterfoundation.com/uploads/1/3/1/1/131164114/6606195.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c9b2b24e-9df5-408e-92d9-56977e0db45a.filesusr.com/ugd/2ca22b_d301435d3c5845cbb8dc00518b68e912.pdf?index=trueIn PDF document text
    • https://b3965eae-43b0-43dc-85ad-46e23b70ed35.filesusr.com/ugd/ed1d2e_8ca9d9d7e43b42c5aa1643824db0eb89.pdf?index=trueIn PDF document text
    • https://e7765cff-d088-4bce-a415-466e0c24fa62.filesusr.com/ugd/54e393_be10916445f947718fa4829e1aee1ce3.pdf?index=trueIn PDF document text
    • https://caadbfc7-aa35-4245-8118-c9754ad3fe4b.filesusr.com/ugd/8a5fcf_43660ef36c34495b995a19947fc860c1.pdf?index=trueIn PDF document text
    • https://b6ccbba8-d4d5-4ebe-9b8a-b40de7ff9df1.filesusr.com/ugd/71fd01_722b1c75e5454abaac054066d795440f.pdf?index=trueIn PDF document text
    • https://4a16da2b-5ae3-431e-82bd-fdb426a54496.filesusr.com/ugd/ee9d3f_e610b2121e6f429bb3e900d1e2b814c9.pdf?index=trueIn PDF document text
    • https://903ac84f-ee0b-4ded-a999-f9424e7b8d75.filesusr.com/ugd/9d869b_f95025b8cedc4a66b7dd36f595691df0.pdf?index=trueIn PDF document text
    • https://5cf6e349-b729-43d0-9743-3a1ef24e590f.filesusr.com/ugd/55f640_dd370c76fddc4fb9834913c8cee992eb.pdf?index=trueIn PDF document text
    • https://860cd934-2df3-4a8f-bc09-59b2c510fb1d.filesusr.com/ugd/4ae4db_98f3a90f203d4cf6b1227dd644daa89b.pdf?index=trueIn PDF document text
    • https://c9e0c7f9-ac79-487d-9c26-f86166ed3e34.filesusr.com/ugd/1c8c1e_964de4e161624a3a8a57716b9a5e6db9.pdf?index=trueIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60AF 5588 bytes
SHA-256: f40ce694f9ed43a71a256da1b9664d3b2b8b94d4fc362930f4fc3fe73bb97d45
font_01_sfnt_off000073c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C7 10468 bytes
SHA-256: ea7c7fa7a57a2cf9a4470f07e126c88972d72c431a107bbbdfde7269a0104b96