Malicious PDF — malware analysis report

Static analysis result for SHA-256 70fab6ddce4e45d1…

MALICIOUS

PDF

45.0 KB Created: 2020-10-28 09:55:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 681e27ffe79f25e0ac672a7332b30595 SHA-1: 3a7dae7bee556fe7a65d3ccf04b64f067f53698e SHA-256: 70fab6ddce4e45d166192088fa4ef2e496e8413f743d595ab9088e1cc75bb33b
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://cctraff.ru/pify?keyword=legal+age+to+babysit+in+oregon In PDF document text
    • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/65e6fb.pdfIn PDF document text
    • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/7194767.pdfIn PDF document text
    • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/2531f5ae602e.pdfIn PDF document text
    • https://xezinaruwi.weebly.com/uploads/1/3/4/4/134479948/vanuzatinunobo-nulademuxiwodok-parive.pdfIn PDF document text
    • https://gamupizesusaza.weebly.com/uploads/1/3/1/3/131398140/vapujenipujij_lutam_jasixajepubese_lumedilozen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382420/normal_5f8dd494886f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368745/normal_5f8b1fc355dc4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379846/normal_5f92863e93e35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382778/normal_5f8fdc4b6b687.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408177/normal_5f974ce4db2b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409610/normal_5f9866ccce915.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379374/normal_5f9567dbb179b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366344/normal_5f950e5cdf33a.pdfIn PDF document text
    • https://zalopajozi.weebly.com/uploads/1/3/1/4/131453352/a143da5d69e9.pdfIn PDF document text
    • https://fulojozizarotuv.weebly.com/uploads/1/3/4/3/134318677/1274568.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/5162795.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/sizetuneropilada.pdfIn PDF document text
    • https://gejovekozeja.weebly.com/uploads/1/3/4/4/134401956/1640143.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007060.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007060.bin)
    • https://cdn.shopify.com/s/files/1/0431/1174/3639/files/lucifer_season_3_episode_guide_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8904/1837/files/94765767826.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/23158000844.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/34748341542.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/chuyn_file_dng_nh_sang_word.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/kupikofaxamigapajife.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/13085518047.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_00_sfnt_off00007060.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7060 5036 bytes
SHA-256: 6ea412fad58521bce7e9e0e1f518a45cedb4d87f2d9229b144a8732aff0830b7
font_01_sfnt_off00008198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8198 11036 bytes
SHA-256: ede13d491bbd5d8873195f48fa37617d7fc714157c5273eb391a599cbc0e6fea