Malicious PDF — malware analysis report

Static analysis result for SHA-256 645c0db72fcf8c0b…

MALICIOUS

PDF

65.9 KB Created: 2021-03-03 00:16:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 962b7e048ebd2373f7fc7285da730552 SHA-1: a641a52784f19d9185f6beaa942c5f9513cf32e0 SHA-256: 645c0db72fcf8c0bd538efd34243c48317b6aae5aac7670ec16c5bbf13319081
126 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
  • 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://jottigo.ru/award?keyword=ms+word+2007+download+for+pc+filehippo PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427086/normal_6023e3936d6b5.pdfIn PDF document text
    • http://myyshooop227.site/88832012712licya.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420014/normal_602105af42af4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370985/normal_5fd8bbaeccd1e.pdfIn PDF document text
    • http://feelslike35.com/mistico_significado_biblicoip2hc.pdfIn PDF document text
    • https://cdn.sqhk.co/perokokamosa/ahfhaLW/tatekeluwonigunubowuna.pdfIn PDF document text
    • http://tvoeobrazovanie.fun/jevijobong1t8w.pdfIn PDF document text
    • http://doweryklkq.space/54298502791cycp6.pdfIn PDF document text
    • https://cdn.sqhk.co/noluxokeruma/9MgdgiU/tuwesubuwonisikewizusil.pdfIn PDF document text
    • http://afracheat4.xyz/97087553572cgn2m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415061/normal_5fc7961b6b182.pdfIn PDF document text
    • http://all-gopro.com/15013069202ad7fp.pdfIn PDF document text
    • http://crispyset.online/wuvogipovilanidozupafi7vamx.pdfIn PDF document text
    • https://cdn.sqhk.co/zavilisuga/jThsge2/run_fast_run_hack_apk.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/bufipevuril/autocad_3d_drawing_commands.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/dilawinibozop.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/62569000015.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/ponniyin_selvan_tamil_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/hey_there_delilah_sheet_music_with_lyrics.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_off0000c54b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC54B 5692 bytes
SHA-256: 0803ee5c0f14fd2d9e6060b8bb9141d14a95ad14c1e0ea0dcc4ed46d1342cad0
font_01_sfnt_off0000d8d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D4 9796 bytes
SHA-256: 112b040d966e96d386fc0dac4c03b0cc13b3a23b931536cb6ff300603dfa3b42