Malicious PDF — malware analysis report

Static analysis result for SHA-256 74522feff187e2dd…

MALICIOUS

PDF

45.8 KB Created: 2020-10-15 19:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5bad328b89d9348401578cfc02d96e32 SHA-1: 7fd00dbece8b79fe60ddec78ef666054537459c1 SHA-256: 74522feff187e2dd2884ea2071e349f96adbdf6a22b4f46111eb6a41ef80cfc7
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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=lego+a+wing+2020+instructions In PDF document text
    • https://site-1038541.mozfiles.com/files/1038541/lumugadaxaduwarewevuzaloj.pdfIn PDF document text
    • https://site-1044104.mozfiles.com/files/1044104/lumuvovexa.pdfIn PDF document text
    • https://site-1042450.mozfiles.com/files/1042450/44146575564.pdfIn PDF document text
    • https://site-1038552.mozfiles.com/files/1038552/66555678098.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f880ab9e194f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366015/normal_5f88589668a05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368950/normal_5f87d2cca26c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_5f874acc16014.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365602/normal_5f86f8ea358b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366382/normal_5f8718039e4c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_5f8770709629e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365621/normal_5f87453ff1179.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369631/normal_5f87d1b3c7fc2.pdfIn PDF document text
    • https://site-1038634.mozfiles.com/files/1038634/rebozorem.pdfIn PDF document text
    • https://site-1043545.mozfiles.com/files/1043545/dajawomirurera.pdfIn PDF document text
    • https://site-1038675.mozfiles.com/files/1038675/5436625082.pdfIn PDF document text
    • https://site-1041785.mozfiles.com/files/1041785/68934367643.pdfIn PDF document text
    • https://site-1048248.mozfiles.com/files/1048248/miledupumevutupi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365624/normal_5f871420f2552.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5f870eb548735.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367302/normal_5f87df13ce703.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365583/normal_5f874661cbaae.pdfIn PDF document text
    • https://site-1041210.mozfiles.com/files/1041210/jefeparitunidozazusurem.pdfIn PDF document text
    • https://site-1039173.mozfiles.com/files/1039173/55655164537.pdfIn PDF document text
    • https://site-1042787.mozfiles.com/files/1042787/2851324659.pdfIn PDF document text
    • https://site-1041210.mozfiles.com/files/1041210/laripavilepasirodudif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000727a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727A 5244 bytes
SHA-256: f99f8d0fe3b1aee2edc643975f08a9090c1ec75716b7b7487c8b7367d12a4079
font_01_sfnt_off00008477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8477 10888 bytes
SHA-256: d56979d60e7bb0f83a949b06fd6914eb55500d7d9f5e4030e6c9c7a8b7364cf8

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