Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97c6236b981641a…

MALICIOUS

PDF

45.5 KB Created: 2020-11-07 03:49:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: ee9b372e0a62adab097f7c6056b14508 SHA-1: 5c10e98897a1bca8e9ff1352b912f12c54bfd5e8 SHA-256: e97c6236b981641af202a45cd7ec6b3acc46b332b6e909cb0b0114f73a934308
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://traffset.ru/123?keyword=musicians+friends+jobs PDF link annotation
    • https://givurili.weebly.com/uploads/1/3/4/6/134605008/685da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453118/normal_5fa379e08a047.pdfIn PDF document text
    • https://fomomeku.weebly.com/uploads/1/3/2/7/132712435/00f6ab09f5.pdfIn PDF document text
    • https://panirosarukiza.weebly.com/uploads/1/3/4/1/134132539/88e711da59be.pdfIn PDF document text
    • https://xemaxokiba.weebly.com/uploads/1/3/4/3/134350412/xabewemife_peloxejov.pdfIn PDF document text
    • https://luvumape.weebly.com/uploads/1/3/4/4/134438520/1314030.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/3409757.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nokiwovowus/xalipak.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/vizuvadatebujovirunumos.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/tri_valley_ymca_pool_schedule.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/weider_home_gym_model_8530_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/designing_mobile_interfaces.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/78967853403.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/jujetinusivawodebub.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A5 5008 bytes
SHA-256: 929532479475337ac553f31b0a60f0dfc7de2e8ba945814ddf2a67b6bad2c5aa
font_01_sfnt_off000076b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B0 10692 bytes
SHA-256: ce290502d157d837a4b2d2e32e2d3b6f5546cee57e1e3dfe68a8e00960690ecb
font_02_sfnt_off00009b13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B13 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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