Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a32d98fa3e5da79…

MALICIOUS

PDF

71.5 KB Created: 2021-03-07 09:43:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a732fbd0ee3510d958fe606fc659bc48 SHA-1: 9644551ce9d9030babb91d2dba6723cf1acaf840 SHA-256: 7a32d98fa3e5da79811f73ee24649d838044560d8dd894b0979cb72452ea9bc6
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://seumenha.ru/award?keyword=kitchenaid+superba+double+oven+door+locked PDF link annotation
    • https://retowukiri.weebly.com/uploads/1/3/4/5/134592720/8744a0e9de865.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476593/normal_5fe782094b453.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414486/normal_601f414cccb8f.pdfIn PDF document text
    • http://vizezokope.iblogger.org/how_to_update_address_on_drivers_licence.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379049/normal_6022fb924efac.pdfIn PDF document text
    • http://vetozadep.mywebcommunity.org/835_vs_820.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479710/normal_602ea45794f43.pdfIn PDF document text
    • https://lijafaxad.weebly.com/uploads/1/3/5/9/135989690/339356.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390068/normal_5fd64d9210a7c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tokafibalo.epizy.com/37628050433.pdfIn PDF document text
    • http://nawinifebijik.epizy.com/omron_evolv_review_2019.pdfIn PDF document text
    • https://69cf8a46-0d3d-4b71-8fd1-93df925da18e.filesusr.com/ugd/e4064d_0a22d978512444d5b5f9c194be3b6a1c.pdf?index=trueIn PDF document text
    • https://044ec7df-721b-4788-b209-87474a3fcb06.filesusr.com/ugd/60ffa2_566407eabd7a4d04aa7820ad119618d8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/putelekireza/goxikusafagipu.pdfIn PDF document text
    • http://sidepojedava.myartsonline.com/9347625484.pdfIn PDF document text
    • http://sabiwilurase.atwebpages.com/81750173615.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/aha_bls_written_test_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/20208206433.pdfIn PDF document text
    • https://d102a0f2-001f-4998-bb0a-88ac30ac05b5.filesusr.com/ugd/771ea4_c6b319f9ee9e4f6eb86ad791000d8c94.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/christian_video_songs_in_telugu_free.pdfIn PDF document text
    • https://df6a9abb-74f3-47e1-b359-fe6d1019da36.filesusr.com/ugd/7921d2_bd701321af814c3aa0ea3b770b28107c.pdf?index=trueIn PDF document text
    • https://12a3aa02-022d-4218-8efb-90aa4388683d.filesusr.com/ugd/6dfd9b_6c0ccd2e2fca4a3f80eea19293d048bf.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/remeranexe/3135540421.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000daff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAFF 5392 bytes
SHA-256: 083cd23619ac4c68b5d5c0a0d8064abb0e1d87afb138d98723bb56ec5b8b4aea
font_01_sfnt_off0000ed51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED51 10212 bytes
SHA-256: 8ea75bda5e5d31a3ee78a79e4d7c79803812133a56fe7bae4438256ee12d19f7

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