Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ad8afb4b992ed64…

MALICIOUS

PDF

34.5 KB Created: 2020-10-15 12:46:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 873274d401589ffe2e13b09c5af023ab SHA-1: f058ac29a21657ff58b48f499108399750633022 SHA-256: 0ad8afb4b992ed648ab1eb2f60ca2f6ecc4d9e18a90e57a48e82e6bd4b84adf1
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://ttraff.club/pify?keyword=dickies+work+trousers+size+guide In PDF document text
    • https://site-1040794.mozfiles.com/files/1040794/sumekepekubuvufiwik.pdfIn PDF document text
    • https://site-1043842.mozfiles.com/files/1043842/76906921059.pdfIn PDF document text
    • https://site-1039349.mozfiles.com/files/1039349/zafoba.pdfIn PDF document text
    • https://besavikeneg.weebly.com/uploads/1/3/2/8/132815808/punuwagevugupeb.pdfIn PDF document text
    • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/wijefizamomow_suvezelowegat.pdfIn PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/fezimexebitodugivife.pdfIn PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/9325577.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/godikiboli-takugeze.pdfIn PDF document text
    • https://site-1036951.mozfiles.com/files/1036951/10655381793.pdfIn PDF document text
    • https://site-1040260.mozfiles.com/files/1040260/dimaferimenilixisoxi.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/1/0438/1235/6253/files/23031136487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2384/3996/files/36126910980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0583/files/peter_rabbit_movie_parents_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fad00d6-288d-4d36-84c8-324e7bc1205e/78954056113.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7374a935-967c-49c5-9bc8-920d2e296b67/1007968504.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4896 5072 bytes
SHA-256: 056fccabd6fd00aa92d17d3c796b9b4c701b574c71fcffa8d9e3e7fbc356e9b4
font_01_sfnt_off00005a03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A03 10320 bytes
SHA-256: 3f8ca2812d4a73b6ce3091a8ee1c10e77b5bbd73a9ac8afa29e5fbad01269ff2

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