Malicious PDF — malware analysis report

Static analysis result for SHA-256 27703fb008ccbafe…

MALICIOUS

PDF

44.7 KB Created: 2020-10-27 16:21:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 7b7d82e9800ed2c6d655f14f41d0f955 SHA-1: a9a998c447a86b3f8f02d716f55257641bd70eef SHA-256: 27703fb008ccbafe3c65776898d9644cc90ffbfa701ded5fdf83f21483dff38c
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://ttraff.me/123?keyword=honey+bee+wings+craft In PDF document text
    • https://sigakoge.weebly.com/uploads/1/3/4/4/134437147/8952370.pdfIn PDF document text
    • https://lujisitezolip.weebly.com/uploads/1/3/4/1/134109273/3747275.pdfIn PDF document text
    • https://boxolajabamofi.weebly.com/uploads/1/3/4/3/134356625/dukopakatit-vogavapufari-dusifebe-tovobunujimito.pdfIn PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/666c4a.pdfIn PDF document text
    • https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/606b6.pdfIn PDF document text
    • https://nofakefol.weebly.com/uploads/1/3/4/3/134341926/rufudimugigekivuj.pdfIn PDF document text
    • https://folemazilepi.weebly.com/uploads/1/3/1/1/131164248/4402972.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/xusuvawatetibuteb.pdfIn PDF document text
    • https://rixokofumi.weebly.com/uploads/1/3/1/3/131380985/4363cdb4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/2564/4699/files/word_formation_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/4956/4351/files/to_be_verbs_worksheet_present_tense.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1572/0093/files/el_sobrante_ca_zip_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8792/3862/files/tesewizat.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/5524239253.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/gawegojatapemutavuxufawu.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/biomass_gasification_technology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/612a6e91-cdeb-4a33-8d66-3cb7f53483f3/adio_e_subtrao_de_fraes_exercicios_6_ano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d92f896b-cf63-4524-ae88-18c035d001e3/zitemapagu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52826865-d7d9-4c15-87b9-7c590e57f84f/sodolofubidefuxunebuzajeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f20df80-1ae6-4043-b5c0-ec76494f7250/jatewexebijejozibufuwo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb9e2424-4077-48db-9ea2-b7af52e7fe15/69590476742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/4790/3128/files/esab_welding_electrodes_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/8646/2106/files/bidujupilafut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7136/5804/files/gojiwanuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2191/7086/files/taluladasolesokud.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_off00006da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA8 5312 bytes
SHA-256: 60af5dc119eacbcf2912b494f09273e43ec53a14a39d7fd5896cd3263a2fc82e
font_01_sfnt_off00007fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE2 11676 bytes
SHA-256: 70f7a0e97a65f65b370101ad03659cca9f2042c55c0ff4af40c9a06c3413f3b4