Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecfd112f79ba1aaf…

MALICIOUS

PDF

46.9 KB Created: 2020-09-18 23:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6549cda9b64337a953a8a921ff63d81 SHA-1: 4e811cbd131357989fdc5bf27b8785dc5c8a7a78 SHA-256: ecfd112f79ba1aafe57f9e321e96c6049fe14ad840934284c3cde7a37379a984
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a PDF redirector link to 'https://ttraff.me/wix?keyword=napa+return+policy'. Another critical heuristic identified a PDF link farm hosted on 'files.fortquappellelions.com', containing 30 links. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the string 'Napa return policy' and the URL 'https://ttraff.me/wix?keyword=napa+return+policy', suggesting a lure to a malicious site.

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.me/wix?keyword=napa+return+policy In PDF document text
    • http://files.fortquappellelions.com/uploads/1/3/1/4/131453946/mefetesufidifavi.pdfIn PDF document text
    • http://files.bellringeratx.com/uploads/1/3/1/4/131406935/bopipufizululun.pdfIn PDF document text
    • http://files.stallaureas.com/uploads/1/3/1/8/131871424/xapoxare-tokibaxud-donolidawu.pdfIn PDF document text
    • http://doban.villagesatlynxcreek.com/uploads/1/3/0/9/130969191/1692302.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://7eda3d74-364f-48c3-8a0e-4d96957d2882.filesusr.com/ugd/cdfdba_90ad4aedb7444496acbd80ed889487d2.pdf?index=trueIn PDF document text
    • https://1c761b32-480e-411b-a73b-5b3a9daa5e64.filesusr.com/ugd/ea9bdf_61c1b44ae36740638bc5db7d9cace7da.pdf?index=trueIn PDF document text
    • https://6a76a58f-da07-4b50-9287-0d4295539517.filesusr.com/ugd/565485_8fbed1fe97294fc4b29b6d4682ada4e1.pdf?index=trueIn PDF document text
    • https://6fe3e877-c746-44bb-8ef7-1eab2c5e31ec.filesusr.com/ugd/87d215_65e16f5fe9b84be3a21c96483859db1a.pdf?index=trueIn PDF document text
    • https://4ff482c3-6236-4d10-a053-26a498508cbd.filesusr.com/ugd/8d5d69_0669ea662e164323a925be27dd7f69bc.pdf?index=trueIn PDF document text
    • https://04579286-c294-4bff-bc8c-487280c1cd6f.filesusr.com/ugd/1b7c00_8284fe25e94b42adb5f95552df908f5c.pdf?index=trueIn PDF document text
    • https://059d14dd-c24c-43ec-9a36-79fd0254248c.filesusr.com/ugd/8e6e76_60d29d5fbe894c89b8bd888601f285a6.pdf?index=trueIn PDF document text
    • https://2466409e-aaec-43cc-898d-166e082cf67b.filesusr.com/ugd/2dbf5a_d7b4ef81968b4cdfad0eb5b4ed0e26b2.pdf?index=trueIn PDF document text
    • https://9704080d-9571-404d-be54-b116a60b39a0.filesusr.com/ugd/9c66ff_7f78593a851842879eafe56bf4917acb.pdf?index=trueIn PDF document text
    • https://d4a2ae12-82be-49a0-b04d-7424df0b72c8.filesusr.com/ugd/f5a024_49ed4222e3da400c820149196431f117.pdf?index=trueIn PDF document text
    • https://54ce31c7-33fe-489d-b92f-f8be918dbbe2.filesusr.com/ugd/3a38e0_85809577ab3841a7bb335f247a82b0af.pdf?index=trueIn PDF document text
    • https://fa817b11-752d-4b95-b122-fded3b8ace74.filesusr.com/ugd/a58502_3cf31b6bda9d425cbae2bba2e16630e8.pdf?index=trueIn PDF document text
    • https://3a22d37c-dfb0-4839-a069-371cce9020dd.filesusr.com/ugd/03ef8e_06d0ab208bff4d1eba05846ee2c194ab.pdf?index=trueIn PDF document text
    • https://dc99b820-f973-4c20-a9a5-5e340e392d28.filesusr.com/ugd/ab922d_b8d33502e2204e669069b4a96a357f03.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_off000078e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E2 4820 bytes
SHA-256: d199b49a4190934248b498586e293a44230c8844671da6d51d48cc6b1a25ce0a
font_01_sfnt_off00008966.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8966 10892 bytes
SHA-256: d7c9c0f95656cff9a420819d97eeffc5e378fd0d434eb04342b4e0769f690097