Malicious PDF — malware analysis report

Static analysis result for SHA-256 19f2d70d8b0a05d6…

MALICIOUS

PDF

49.4 KB Created: 2020-09-17 17:41:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 005f787efa1f925c1d5124feeb4ae7ac SHA-1: 196d860b65266a583de5b4a0576182e20922aa04 SHA-256: 19f2d70d8b0a05d612c97d0e41c72b42a39bc2fe900eae171f3770dd1740a0b6
184 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains a URL that matches one of the identified malicious links, suggesting a lure to a potentially harmful site. The presence of numerous external links points towards a delivery mechanism for further 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.
  • 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=vaporesso+attitude+mod+manual In PDF document text
    • http://wonifi.garritylpc.net/uploads/1/3/1/3/131379803/nekegigibi_kavovesatamo.pdfIn PDF document text
    • http://files.integritypump.com/uploads/1/3/0/9/130969728/sedurebozuku.pdfIn PDF document text
    • http://files.deenacormierphotography.com/uploads/1/3/0/7/130776393/97fb0392.pdfIn PDF document text
    • http://sazat.innerworkingsofmymind.com/uploads/1/3/1/4/131408371/8837780.pdfIn PDF document text
    • http://files.cliftonag.com/uploads/1/3/2/6/132696030/pojavemodoz.pdfIn PDF document text
    • http://files.gratefulfredsukeleardeterrent.co.uk/uploads/1/3/0/7/130776728/kagukol.pdfIn PDF document text
    • http://letujibum.fueliachemicals.com/uploads/1/3/0/9/130969186/801be3deaa9c7d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://99ddea45-e1eb-4e8c-83fd-8531753dbb14.filesusr.com/ugd/957eb4_48518a4891f54b1aa0e119d2d8c26b7c.pdf?index=trueIn PDF document text
    • https://c5d3dc97-1191-4229-8363-eb4cdc1fee5c.filesusr.com/ugd/dc6899_59875b29af914628be6df21b45b61b45.pdf?index=trueIn PDF document text
    • https://cc62c65f-6c18-467c-a0e3-c2b2fd469110.filesusr.com/ugd/105a8c_765f78d44ddd402281343ae827bcf219.pdf?index=trueIn PDF document text
    • https://57df78e4-9223-402a-9fd4-f1d6672f1dad.filesusr.com/ugd/cbdbb6_03cfc7775c9e4e3e930e7a8e42a8dc0d.pdf?index=trueIn PDF document text
    • https://fcfa9dd9-0c7d-4df0-9c39-4ddd71debd6e.filesusr.com/ugd/d3758e_b27f36ac9ef64137aa3ba2e93005fbea.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5176/9256/files/manfaat_innisfree_sheet_mask_ginseng.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/sausage_party_for_free_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3224/7457/files/oasis_water_coolers_parts.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 3

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_off00008427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8427 5068 bytes
SHA-256: fa8f86b9db80dfc0133beaab2b50b8091d26e3f6fe2ed12bd68e334651b47c39
font_01_sfnt_off0000954c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x954C 9932 bytes
SHA-256: 462b507db5981e48f6c63ed538042b12c4865380c2a5e253c928cb30991da279

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