Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d221f95d5f7ce06…

MALICIOUS

PDF

48.1 KB Created: 2020-10-25 03:05:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 9511f08b995937987e6bc4128c7de4ac SHA-1: ca939f1eab32c668ce19415b79863a14862ad9da SHA-256: 2d221f95d5f7ce06582a53a1b65ff7cc74ea1d4451219c202ef0ad3d10446d2d
144 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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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/aws?keyword=black+dog+tab+pdf In PDF document text
    • https://meboguvogo.weebly.com/uploads/1/3/1/4/131437667/kowuzawudezopurezug.pdfIn PDF document text
    • https://voxapinave.weebly.com/uploads/1/3/2/7/132740917/kotojekatez.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/laresisif_kigadebokenub_bajutinerid.pdfIn PDF document text
    • https://sizojupitad.weebly.com/uploads/1/3/4/3/134332657/kapafoku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375528/normal_5f8f3dcde9636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404757/normal_5f93f74812add.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370275/normal_5f917b5b2d0cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377400/normal_5f9423ab6565f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368731/normal_5f91369bc5396.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/fibalosixerivapun.pdfIn PDF document text
    • https://godadonalizubo.weebly.com/uploads/1/3/1/4/131437317/8365605.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000786c.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000786c.bin)
    • https://uploads.strikinglycdn.com/files/a8442eef-cc03-47c9-901a-0f4f65d97a10/1164182033.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d5d0eae-89b1-4401-9cfc-deb489f03d6b/92979983730.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08a415a5-4fb5-48fd-989e-c9e551c71fc4/jagibowefiwuxikazuxigala.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a81ed569-c0cd-4d8a-8468-2e5c882f7175/relamepo.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/pawarusaseniriwimiwopodos.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/canon_eos_rebel_t6i_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/quantum_consciousness_book.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/42632854543.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/48860817674.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_01_sfnt_off0000786c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CED 3192 bytes
SHA-256: b3e77316265749dd58c5d48b801b79070257d474e3d950964e777a22be902136
font_01_sfnt_off0000786c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x786C 5300 bytes
SHA-256: 2c6732c0d278ed5f4efc42a2afdfaf7439d119ede74db3029fed7180bd7095be
font_02_sfnt_off00008a8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8F 11136 bytes
SHA-256: 8f4ca084743d89cdb955230f73dfe19bf55cf7603aae37aaaf500f01aa59ffc4