Malicious PDF — malware analysis report

Static analysis result for SHA-256 703cbe9b7ea4988c…

MALICIOUS

PDF

61.4 KB Created: 2021-02-16 13:55:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1253757cb8d332106644f1c482737faf SHA-1: 71ae524661fe292c0e923a76d4c3319b2c9d29b4 SHA-256: 703cbe9b7ea4988cdf64cba2b081a4fc2a20ffea54846dc2e2b1975773f65f54
104 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://maypoin.ru/wb?keyword=a%20writer PDF link annotation
    • http://topmassage.net/14144312093f2ult.pdfIn PDF document text
    • http://mgacessoria.online/yiruma_kiss_the_rain_violin_sheet_musicrk1k7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371498/normal_5fee38e4da99d.pdfIn PDF document text
    • http://barbanapoli.moscow/manual_money_managera6men.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491725/normal_5fffbaa2edcf1.pdfIn PDF document text
    • https://cdn.sqhk.co/powirafawume/a6Iid5I/budibuxirudokor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382966/normal_5fd7853f3532e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421783/normal_5ff4bf80bded1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403406/normal_6011f42dbe0af.pdfIn PDF document text
    • https://maypoin.ru/wb?keyword=a%20writer's%20reference%209th%20edition%20by%20diana%20hackerPDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/ascent_infinite_realm_online.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/bradley_cooper_and_lady_gaga_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/98381586675.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/45065120716.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/all_clad_belgian_waffle_maker_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/paper_plane_glider.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_off0000b2b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2B4 5652 bytes
SHA-256: 4241497dfc2fb0d4697720ac2b2e68f9450f55603203ffa1643ae3a890709044
font_01_sfnt_off0000c605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC605 10116 bytes
SHA-256: 6edf64ae43e53b66087ebc6eb3fb44d3d7ef04990bac96e80c4ec8db3649058f