Malicious PDF — malware analysis report

Static analysis result for SHA-256 5980f3253092ba85…

MALICIOUS

PDF

71.8 KB Created: 2021-02-10 05:47:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e43c75f0fbb5a3cb29e26a6e30d26f63 SHA-1: 05bef3c7a88f3e314745bc53fa475006642cc708 SHA-256: 5980f3253092ba8584fc1a7d85ddecf02053647a2fbe30fbaf797a07346e7b1d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://jacksth.ru/wb?keyword=spotify%20hack%20apkpure PDF link annotation
    • https://cdn.sqhk.co/fuvebopeweb/GbiiShb/juwuvonadimosulepizedow.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/gcvhcgi/74740893235.pdfIn PDF document text
    • http://onlinekartiadesi.com/vande_mataram_lyrics_in_tamilu0ocz.pdfIn PDF document text
    • https://cdn.sqhk.co/nepusoliweda/bzXghkS/5746209914.pdfIn PDF document text
    • https://vatedubajepe.weebly.com/uploads/1/3/4/3/134371970/535fe46.pdfIn PDF document text
    • http://sell-toclick.online/tisosalugazibudunufesom5nncv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405202/normal_5fe78dc64eca5.pdfIn PDF document text
    • http://3gusevshop.website/web_tycoons_pvt_ltds5w2w.pdfIn PDF document text
    • http://goodsun.space/diferunesuzidarepzqwjb.pdfIn PDF document text
    • http://websporizlehd.com/fuxavuripovasufalizvpp1b.pdfIn PDF document text
    • https://cdn.sqhk.co/xumesapaxoku/9aemWie/korawamajof.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/ePkJsOB/ziwesoraro.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/ihTJlvu/bolatawosezedalorad.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/tugumeb/vapabajawibir.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/informant_5_user_manual.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_off0000ddf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF3 5164 bytes
SHA-256: 5bea98c6a3bf401ce51db4d6e486f124fda327cdf476fe6d87c29f821af17d69
font_01_sfnt_off0000ef8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8D 10196 bytes
SHA-256: 40840759f3c405e90a5449f9c8e6d7506725396671ef69333428c48974eaf61f