Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f46d51c592ca86…

MALICIOUS

PDF

66.8 KB Created: 2021-01-25 14:20:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: a6df0a84ede4d52da2bed0f692c80a69 SHA-1: 83122753fe1ad7818de7b6685892a2c263748855 SHA-256: 00f46d51c592ca86ed5b79f9dbe098d22a4015b52f81a791c37e944c3036abae
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://yafferge.ru/123?utm_term=morning+and+evening+azkar+by+mishary In PDF document text
    • http://sweetygirl.club/50235683422yoq3u.pdfIn PDF document text
    • https://lidukawovov.weebly.com/uploads/1/3/5/3/135323160/2871012.pdfIn PDF document text
    • http://mmuuue.space/91737061484ayhor.pdfIn PDF document text
    • http://digtalcaliper09.xyz/11885040368wjuoi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373248/normal_5fe348c148124.pdfIn PDF document text
    • http://zovizakuxefo.iblogger.org/97079683671.pdfIn PDF document text
    • http://mazonenebu.22web.org/bapcoc_2012.pdfIn PDF document text
    • https://vebavorosufate.weebly.com/uploads/1/3/4/7/134742301/eaaa0daf714e6.pdfIn PDF document text
    • http://freshka.fun/verizon_wireless_roadside_assistance_vs_aaayziq7.pdfIn PDF document text
    • http://besuxiju.22web.org/beautiful_hd_wallpapers_for_android_phones.pdfIn PDF document text
    • http://onenature.space/pac_1218-_16_max_liftt5kn6.pdfIn PDF document text
    • http://reduslimitaly.website/lalisulogafuzefabegilubxwco0.pdfIn PDF document text
    • http://zuragaretezi.iblogger.org/cute_cat_hd_pics.pdfIn PDF document text
    • http://scarcebook.com/45503777185gfwj2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403674/normal_5fd9d0388f189.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mogadaf.epizy.com/cfm56-_5b_engine_shop_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/msvcp140._dll_pes_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/android_10_galaxy_s10_t_mobile.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_off0000c914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC914 5628 bytes
SHA-256: 31299a0a32931ca7bcb92adb18b4a2065e021fdecf8e9105038e9ffd7865ea22
font_01_sfnt_off0000dc37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC37 9984 bytes
SHA-256: 86a17fa477c82074cb0af494f13dcab25d67ad4d222b87b978f1ee38acd5db4e