Malicious PDF — malware analysis report

Static analysis result for SHA-256 34dab46943ee8e97…

MALICIOUS

PDF

63.8 KB Created: 2020-10-29 12:50:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 7c71ed41da2ff9e7648aa9babe19795a SHA-1: bc3d7cccfa7741df57e8a55a915c465c9ca29937 SHA-256: 34dab46943ee8e9734eb324d3a527c2c7c6e58d335fb8555930bd0a85757d7cc
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.
  • 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.link/pify?keyword=planned+order+receipts+%25E4%25B8%25AD%25E6%2596%2587 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4386334/normal_5f9200e7e3248.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372983/normal_5f8fdbe9e30b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367927/normal_5f87af578eb81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_5f8b2b22a2959.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_02_sfnt_off0000aa79.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_02_sfnt_off0000aa79.bin)
    • http://www.daltonmaag.com/In extracted file (font_04_sfnt_off0000e15f.bin)
    • https://cdn.shopify.com/s/files/1/0482/4894/6842/files/android_view_set_background_color_programmatically.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/waking_up_white.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/factors_affecting_academic_performance_of_working_students.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc219e7d-240d-4f1a-a8d1-525542470d39/90308044116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7808/3248/files/74280137568.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/bhagavad_gita_as_it_is_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/18344793164.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c415b72-4cd2-4b6c-b0ff-e69044301d2f/ropupumuzulurerofetuw.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/oblivion_graphics_overhaul_steam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9665/7058/files/autodesk_sketchbook_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/083c6063-33bc-4504-8a84-339762815e11/gekuzugapin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d73361c-b4ff-4353-9ac8-79d2b24520b0/operation_werewolf_chapters.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/apprendre_anglais_debutant.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_02_sfnt_off0000aa79.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBA 14836 bytes
SHA-256: 9afa870aecae359a27a0f27e3b99cb444a35e9d76afa8f96fe707da1a5567da0
font_01_sfnt_off00009f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F73 3112 bytes
SHA-256: 1d91dc015e5f35b51cb2fd9920352be6dd5765c2aaf29a0402befc798b42a57d
font_02_sfnt_off0000aa79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA79 4856 bytes
SHA-256: 3f34d6e8736c850624244686c20624d6b9806078b56f407435fe4ef0cf28a831
font_03_sfnt_off0000baf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAF6 11684 bytes
SHA-256: 8e7222edd4d0130b7716dcb0d4a85d344b18fee19758ad4194fb2728397f9aa2
font_04_sfnt_off0000e15f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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