Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f56478b47088edc…

MALICIOUS

PDF

70.7 KB Created: 2021-01-23 00:59:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: dabd10835434b1aab3088b3e69b1db44 SHA-1: 13133b7cc45e66dfcbe4866129004459ed2781fa SHA-256: 2f56478b47088edc140b9682098b9a9ee3092dc11b899f1594aefe7bb1cb3800
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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://trafffi.ru/wb?keyword=printable%20colouring%20activities PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4412408/normal_5ff59a860dd77.pdfIn PDF document text
    • https://neletataw.weebly.com/uploads/1/3/1/3/131398134/watasovagowemo.pdfIn PDF document text
    • https://site-1172409.mozfiles.com/files/1172409/browning_strike_force_hd_pro_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455639/normal_5fda2159c52ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490516/normal_5fdb6e4d07620.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425919/normal_5fc728d0ce916.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383695/normal_5fe0e6e21b2ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480585/normal_5fe31c089ce3c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405946/normal_5ff56ca9c6c2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476434/normal_5fe6545570e96.pdfIn PDF document text
    • https://sakotitalivuvu.weebly.com/uploads/1/3/4/8/134887700/geluzisuna.pdfIn PDF document text
    • https://rupogasonewu.weebly.com/uploads/1/3/4/6/134653860/xiwafijo_bedamuxug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420612/normal_5ffff0f3f141c.pdfIn PDF document text
    • https://site-1168264.mozfiles.com/files/1168264/imperia_online_medieval_empire_war_strategy_mmos.pdfIn PDF document text
    • https://site-1172455.mozfiles.com/files/1172455/darkest_dungeon_guide_team.pdfIn PDF document text
    • https://site-1177680.mozfiles.com/files/1177680/slots_free_games_download.pdfIn PDF document text
    • https://sileperu.weebly.com/uploads/1/3/1/4/131406390/monobawanunof_zazagezewex_wativ.pdfIn PDF document text
    • https://site-1176940.mozfiles.com/files/1176940/18132734973.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD881 5168 bytes
SHA-256: 46212ea1498c6da3c05c87a5ef6a6c86f9467a7ac70b9347d997096534747196
font_01_sfnt_off0000ea2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2F 10432 bytes
SHA-256: d05e734c2d78e01408ea276840dea855eabc6b265e2c7f1d213c7c909779e392

Open this report in the interactive analyzer, or submit your own file for analysis.