Malicious PDF — malware analysis report

Static analysis result for SHA-256 69e034f6d5f9c57d…

MALICIOUS

PDF

38.6 KB Created: 2020-10-10 18:23:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 85914db0b5dac158a570f083e93bdae9 SHA-1: 18c4744d53fdf5b5cdc43c8829237bd16b53499a SHA-256: 69e034f6d5f9c57d88925a7b848982ffe04f823e2b8b210b0e4807a32d0d6656
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://ggtraff.ru/pify?keyword=hang+in+there+baby In PDF document text
    • http://wowupej.domainsafe.site/uploads/1/3/1/8/131856278/revorizifumokosugowi.pdfIn PDF document text
    • http://files.kirstenimanikasai.com/uploads/1/3/0/7/130774969/300629.pdfIn PDF document text
    • http://files.penrosetutoringandlearning.com/uploads/1/3/0/7/130776273/pigufivagab.pdfIn PDF document text
    • http://files.compassionwithin.com/uploads/1/3/0/8/130874431/xetufabapijinavub.pdfIn PDF document text
    • http://files.lsmcclain.com/uploads/1/3/0/7/130738859/7849148.pdfIn PDF document text
    • http://files.pussycatscomics.com/uploads/1/3/2/6/132696580/ea6103b81179f4d.pdfIn PDF document text
    • https://site-1039634.mozfiles.com/files/1039634/7346791667.pdfIn PDF document text
    • https://site-1039153.mozfiles.com/files/1039153/wazepaz.pdfIn PDF document text
    • https://site-1036646.mozfiles.com/files/1036646/5547031186.pdfIn PDF document text
    • https://site-1038460.mozfiles.com/files/1038460/domebixijegimofux.pdfIn PDF document text
    • https://site-1039346.mozfiles.com/files/1039346/1896245362.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/d986e948-9e77-418b-b2f0-c7764e6bd504/80142427437.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb097289-d0a5-4252-b3c1-123c6a1e0f0d/gipunogati.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2c99acb-3a14-4aaf-b920-415f104f97c0/63036512888.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15e75cd7-e963-48b8-8e6b-30449bbb7afb/modaxefekeneralulufusu.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_off00005a64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A64 4940 bytes
SHA-256: 2e2a16a9dc5ca69594b692cf77f12e20ded03ea5154babc68d22ebc549982c48
font_01_sfnt_off00006b2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2E 10156 bytes
SHA-256: 47b623c6a2abc3c5cbf4198cbe2406fbf91ed3ed959bdbec554f4bd4ece0ee59