Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4110fe710a2e435…

MALICIOUS

PDF

73.5 KB Created: 2021-02-13 09:18:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1d486f6632d6ba6b6f8fea00486aa2f2 SHA-1: e2ef4b1c18c313911e3aa0615e839443f7056332 SHA-256: b4110fe710a2e435506377953e55bca735939e94a16057ca3ff0e9878336483d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jottigo.ru/wb?keyword=good%20night%20love%20kiss%20images PDF link annotation
    • http://lnstagramverifiedsbadgeform.com/present_simple_present_continuous_worksheet_isld6e70.pdfIn PDF document text
    • http://static-get.top/colorear_lol666o4.pdfIn PDF document text
    • http://wigigokewadusad.iblogger.org/zodalodonatikosasapa.pdfIn PDF document text
    • http://mosasekoz.22web.org/n_c_l_p_full_form.pdfIn PDF document text
    • http://jodopafipunew.22web.org/watuletet.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/sefipa/80173277155.pdfIn PDF document text
    • http://vomifavub.epizy.com/call_of_duty_heroes_android_apk_data.pdfIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/spotify_premium_terbaru_mod.pdfIn PDF document text
    • http://lununobasafino.rf.gd/kenixafetugo.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/zabijazoxapaxokinur.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/utorrent_web_speed.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/tinaguguf.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/50302470697.pdfIn PDF document text
    • http://fivamoxopel.epizy.com/fire_emblem_awakening_guide.pdfIn PDF document text
    • http://dofiruser.epizy.com/what_is_ethnography_in_qualitative_research.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_off0000e2cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2CC 5296 bytes
SHA-256: fd766c28743619187d334d24f0ff8251e8a98da83e050f22f71afc12e031c5a0
font_01_sfnt_off0000f4b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B8 10784 bytes
SHA-256: 331d9263546f64cab09ee1d5ae33428b6ae008bd33aab71e9108c5df3787f246