Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad80ad0edd22c06a…

MALICIOUS

PDF

58.1 KB Created: 2020-08-15 04:43:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: c9ecb1dc34b89e169506c00ce02e25db SHA-1: ec47fb7cb7d15d81c1334f7d8bf8c98b94763eb6 SHA-256: ad80ad0edd22c06a3dfe742538bcd8feb037d560def65086ed3ffc083c720c67
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://ttraff.cc/pify?keyword=bhakta+prahlada+1967+telugu+movie+free In PDF document text
    • http://files.monamoody.com/uploads/1/3/2/7/132712323/koxizuwelawiluz_nikegofalorokut_datawosaze_lejigolutes.pdfIn PDF document text
    • http://files.victorystrengthandfitness.net/uploads/1/3/1/3/131379111/3189598c68fd.pdfIn PDF document text
    • http://files.lincolnlandemmaus.com/uploads/1/3/2/6/132696351/50131948.pdfIn PDF document text
    • http://files.campdogginit.com/uploads/1/3/0/9/130969053/57776fc6be.pdfIn PDF document text
    • http://files.goringandstreatleyprobus.co.uk/uploads/1/3/1/3/131381919/d2de34b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3374/7878/files/dukosexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/poxoxinezogupamawokadoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0074/2567/files/94338204275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5029/5708/files/75670315107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4798/5053/files/managing_oneself_peter_drucker_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7254/4150/files/the_newsroom_ep_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4800/0922/files/sefudugutanepirodow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6022/3382/files/desktop_media_query.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0206/8131/files/search_through_image_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4487/files/babylonian_architecture.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006479.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6479 5892 bytes
SHA-256: ed65dba5f7d2d827707e0fd2a83263276117d189ff327392eafaa2ddd48cc8aa
font_01_sfnt_off00007878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7878 4416 bytes
SHA-256: a0f9d685f257395b9377d50c63e2d3b5503aa3b42a5b8feaaee0bbe02d16f649
font_02_sfnt_off000086fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86FA 2600 bytes
SHA-256: ca22edc3dd0ec0db237f16f8a925c2b6deed807703c6158bee56a61667f81b85
font_03_sfnt_off00009226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9226 3100 bytes
SHA-256: 556fefd7d50131adf461480544d2c40715760d97c93b4ada4005950c79c9a2e6
font_04_sfnt_off00009f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F2A 14652 bytes
SHA-256: 1d247397760827794932a48a48a1bb56c6f6e961b46f4cf0a7ee78327704de4f
font_05_sfnt_off0000ccd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD5 3200 bytes
SHA-256: 551a07e0dd941d21dff375ecb1e1f15f63ec6274eb6237000ee857427fd0c1d1