Malicious PDF — malware analysis report

Static analysis result for SHA-256 b772426062b81e02…

MALICIOUS

PDF

69.9 KB Created: 2021-02-22 19:39:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ad1b953252fce9f357a3fe9f4b7d2288 SHA-1: 06cec3fe68ce1a84b2003732e36f56b5b4fa68b0 SHA-256: b772426062b81e02203c0ff20c087a059efa8bf9e1921c3aa5c99e1daa73bb4a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=net+cut+apk+pro+latest PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459188/normal_5ff2089647846.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390684/normal_6005f80a6d431.pdfIn PDF document text
    • http://rowaxuxot.22web.org/37162073250.pdfIn PDF document text
    • https://cdn.sqhk.co/xivomojuf/ihfe7Ek/3208483090.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492575/normal_5ffd3785673de.pdfIn PDF document text
    • http://jazabezul.iblogger.org/76469482484.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410988/normal_5fe529b38fa0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489583/normal_600dac7a165e8.pdfIn PDF document text
    • http://lenagilos.22web.org/barrena_manual_para_perforar_pozos.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/lorugipopuxe/kirby_green_greens_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/stone_coated_roofing_sheet_in_abuja.pdfIn PDF document text
    • http://wuparol.epizy.com/77805663702.pdfIn PDF document text
    • http://numaxap.epizy.com/gazakibuwanusuro.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/bakobavogijex.pdfIn PDF document text
    • http://kowesodi.rf.gd/85136459555.pdfIn PDF document text
    • http://farowib.epizy.com/l_movie_audio_song.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/vmware_vcloud_availability_3._0.pdfIn PDF document text
    • http://rawodofomer.epizy.com/how_to_get_free_food_pizza_hut.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_off0000d62a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD62A 4960 bytes
SHA-256: 93b69cb270ecceecffd5c5fe75d2bd5a1b4d39ea4db498cf220f6578c6088cdb
font_01_sfnt_off0000e71f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71F 10428 bytes
SHA-256: aaa3eae99fb832f4d601a5cacc79077a3182f2bd5f65fc30244cee6859471de4