Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4a589d9edc770bb…

MALICIOUS

PDF

47.6 KB Created: 2020-09-30 11:15:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 18ede4788ac01e85319d6a839631562b SHA-1: 9ed3384302b21cb17d4c1f3d78faf4724b2c85cd SHA-256: e4a589d9edc770bb30bdd10d37531668929d40e0b5d5e245edb65b5578ec37ef
194 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.
  • 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://ggtraff.ru/strik?keyword=que+es+el+contexto+geografico+pdf In PDF document text
    • http://files.creativedisplaysny.com/uploads/1/3/0/8/130873902/ea3891188df3aa4.pdfIn PDF document text
    • http://files.dannyangelz.com/uploads/1/3/1/0/131070227/30cd50fb02112.pdfIn PDF document text
    • http://xibozor.honeyrockhiddentreasures.com/uploads/1/3/1/1/131164112/4514783.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://cdn.shopify.com/s/files/1/0431/2766/8890/files/dungeons_and_dragons_4e_character_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8047/2984/files/65316981676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8435/6507/files/ruxonexafuzesamusupef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6128/7839/files/caselet_di_for_clerk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/2780/7646/files/pediatric_cardiology_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/45472041349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2969/9482/files/tipelapodusoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8148/2650/files/camstudio_video_editor_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/scat_anxiety_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4564/files/88575187342.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_off00006ccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CCB 5332 bytes
SHA-256: c8a8fd936aca8bc5edd32c01e3ab5def7b38a395e3b55684fb3e96e1788b2aa7
font_01_sfnt_off00007efd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EFD 10840 bytes
SHA-256: 3750cc622a651fc19265d3266b0b871a5ec44bc43299a17873c51aabc2bf2dfc
font_02_sfnt_off0000a22d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA22D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

Open this report in the interactive analyzer, or submit your own file for analysis.