Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e2200d7b062e70…

MALICIOUS

PDF

57.6 KB Created: 2020-09-22 08:26:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 90cff174c87efdc5b5052196550c47c7 SHA-1: 7e7deb22ecf02d49e58b6a623757dc72a7ef5c77 SHA-256: 34e2200d7b062e7072c3333e732d2df5c7dde53685f8e5fabad7ff441a598d2f
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://ttraff.com/wix?keyword=rising+strong+summary+pdf In PDF document text
    • http://jodaveded.sodiscgolf.com/uploads/1/3/2/7/132712596/xafukonobevumepur.pdfIn PDF document text
    • http://mevamuf.lifeimpactcogop.org/uploads/1/3/0/9/130969862/8238415.pdfIn PDF document text
    • http://luzizikip.theprlady.com/uploads/1/3/0/7/130775918/fedazimiga.pdfIn PDF document text
    • http://files.goldenlabbookshop.com/uploads/1/3/0/7/130738949/6668840.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://2dc4d182-0105-42be-82e0-1901cbb32297.filesusr.com/ugd/e8e253_b3f53e75e19a4f3285051aa5f896a98a.pdf?index=trueIn PDF document text
    • https://6c0399d0-711d-4a17-b26b-8b5fef27d92d.filesusr.com/ugd/0b46e6_5de0a18307f74c4aa700db4260565557.pdf?index=trueIn PDF document text
    • https://60cf63e5-d510-4fd8-bf80-cbb2b0829f08.filesusr.com/ugd/aaaf79_bcfe6deb27a542218e687b0046ef82b6.pdf?index=trueIn PDF document text
    • https://d3dddab3-5af6-40b8-856d-895f003e930d.filesusr.com/ugd/c75f60_61ee6d5b3a3540a6bdb6b113a9dae2b7.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6895/6565/files/life_application_study_bible_kjv.pdfIn PDF document text
    • https://f09c9fd5-eb15-4a8c-8a28-b127532cd15d.filesusr.com/ugd/95bb70_9af404f80f2340d59f585cddb87fda7e.pdf?index=trueIn PDF document text
    • https://6f69e966-c9c8-4888-92b1-afacbbca1cb4.filesusr.com/ugd/c8d394_3b98ab2649be4209a86d250f92b506cb.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000918e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x918E 6548 bytes
SHA-256: 4200db6c0e80cadcb5e6095e2db64c6b33cb2c0480475197fd4329a98774db8e
font_01_sfnt_off0000a1e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1E4 5436 bytes
SHA-256: 6c6b765068664f35f4a48ba59c9e968f41c435bb34002f3c22a4a696eb0150fb
font_02_sfnt_off0000b45b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB45B 10500 bytes
SHA-256: c9138b6202d5ed76dc2f50f2e129afb1ceed1b5e51cd2ab6a3c0363d87c85056