Malicious PDF — malware analysis report

Static analysis result for SHA-256 7094ac54b5a1051f…

MALICIOUS

PDF

45.7 KB Created: 2020-10-15 10:00:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 51b1c79e170949e9e065e54446084f7b SHA-1: 93fd5b55a9e97481185985ab8752068be1c93f5d SHA-256: 7094ac54b5a1051fd69c462fd88e7a35793b1fd809615ac6e55c6e6528c4ae99
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://gettraff.ru/123?keyword=application+of+venn+diagram+problems+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367305/normal_5f876336ee649.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/94d5cd4e-b2e3-4776-9db7-91c5f54fde3b/89395542603.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/465ff9ec-70c7-4378-b167-edbec5d6e4d9/mixivisemonubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74b140d1-c93c-4692-a628-dde097195b25/29682699782.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0730cc6-6417-48f6-807a-c3245a30134d/zukotejizozosafevek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1504/4761/files/susan_miller_virgo_june_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7186/3961/files/sexerupogidobuxamamixowit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1048/0533/files/kinky_twist_hairstyles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/1885/3793/files/tozizibosekigexupufaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2992/4509/files/doguserudinixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5555/3432/files/95877052342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5566/8639/files/97573222077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/7351/1064/files/65788237036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4579/7026/files/99683928471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/so2_lewis_structure_intermolecular_forces.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3531/0745/files/lodadixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/8996/9311/files/vasumamujitukowopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/9433/9481/files/nissan_30_forklift_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/9023/5558/files/dexapanonuruw.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_off00006f43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F43 5664 bytes
SHA-256: 8aa61b1d1ce548b4f706e54ee162e620b500a5cf54bcbe184c47a48af2e9360c
font_01_sfnt_off0000826c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x826C 11588 bytes
SHA-256: 4a2a0bb56bf2d9d73a3da962dd818071b92fb04535862ff2319b1d46044bf86f

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