Malicious PDF — malware analysis report

Static analysis result for SHA-256 e389f23c0f0d5b4d…

MALICIOUS

PDF

44.4 KB Created: 2020-10-27 00:49:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 2d660daa1a5837adc09f966327bde5ea SHA-1: db3ec09e4818dce0574e344ed2d819770e025b9b SHA-256: e389f23c0f0d5b4d43418bf3d2975f986d3e7ec71d18e62f61401db4c86c687d
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://ttraff.link/pify?keyword=la+casa+de+los+conejos+pelicula In PDF document text
    • https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/1262156.pdfIn PDF document text
    • https://nigokozop.weebly.com/uploads/1/3/4/4/134436215/f21012e4063.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/f271163d37fbca5.pdfIn PDF document text
    • https://folukufisika.weebly.com/uploads/1/3/1/3/131384255/7489778.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381532/normal_5f94314271bcf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370989/normal_5f8a110cd43ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369904/normal_5f8fb0c117e56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385028/normal_5f96307c9b0cf.pdfIn PDF document text
    • https://topodomero.weebly.com/uploads/1/3/2/6/132696018/botem.pdfIn PDF document text
    • https://rewemekekebaz.weebly.com/uploads/1/3/1/4/131406535/tenonov.pdfIn PDF document text
    • https://tuboxivodase.weebly.com/uploads/1/3/4/3/134387713/xutagakal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/makerere_university_private_admission_list_2019_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4677/9552/files/pontiac_389_block_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/8773/7255/files/smokey_robinson_really_gonna_miss_you_mp3_download_free.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/72296521948.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/36091915199.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/joxetofevinanajurixil.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/76343975151.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_off00006d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D18 4988 bytes
SHA-256: 831d5fcb87abdf88eea1fa99e328b2a9d88631107ea3fc20761fc5919b2d44b1
font_01_sfnt_off00007e1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E1C 11748 bytes
SHA-256: 970b97a9f8cc489c62ddaa64016e65a2847b65d999534f06ea45a4591e2f9cf8