Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef36dcf2b8d8373d…

MALICIOUS

PDF

66.6 KB Created: 2021-02-28 06:43:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d73ad310abc73d03d4f10d7d8a39bb65 SHA-1: 6e8b1d44be2813374d13327d92b1dc5650901bcb SHA-256: ef36dcf2b8d8373dfce5b66a6775a5fbf978b992da0f9ba6b500aa9723197869
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://lozipotod.ru/wix?keyword=bell%2527s+smoke+shop+rossville+ga PDF link annotation
    • https://cdn.sqhk.co/dasisogi/ggggjHs/34566440886.pdfIn PDF document text
    • https://cdn.sqhk.co/jigitovewuk/djgXhck/pet_paradise_bubble_pop_matcha.pdfIn PDF document text
    • http://polypak.site/sat__ig_bookstore_ad_doqin9wn3.pdfIn PDF document text
    • http://vulgargirls.fun/96182310953gkfex.pdfIn PDF document text
    • http://birobupalojasux.iblogger.org/asrock_h310m-_hdv_m._2_manual.pdfIn PDF document text
    • http://politach.com/melofupobakajewic1hdq.pdfIn PDF document text
    • https://cdn.sqhk.co/tijatabov/36uihMX/77855680406.pdfIn PDF document text
    • https://cdn.sqhk.co/giwegulatil/dYFiahj/38404509416.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369763/normal_6025eab7b1878.pdfIn PDF document text
    • https://cdn.sqhk.co/mugejufunij/jh5mhcm/tikadagufefapedatazedik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470960/normal_5ff989ce758e2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dojovosis.rf.gd/61680905354.pdfIn PDF document text
    • http://bidokezasi.epizy.com/30305709833.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/fozunikurupigibodilogi.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/dutafefutawegutak.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_off0000c789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC789 5440 bytes
SHA-256: 7e2d73d725f4c191a086bb8b2937c1b6c0758c7c0a989eb4f57ab48fe374e820
font_01_sfnt_off0000d9ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9EE 10480 bytes
SHA-256: 1b84ea3fae82a32ca8b6cae8ca4c647dd80f50f96aaa2b0cd61b1ee80c474257