Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccee96a84ec94abb…

MALICIOUS

PDF

73.7 KB Created: 2021-02-14 09:09:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a08d253dd1ac26a7f120ecf967311314 SHA-1: 84082adaea5b95d2f9700bc73d0861b1b785405d SHA-256: ccee96a84ec94abbdd780a441124a9f9daeddfbf8c3441fe86966bc32241fdbb
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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 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.
  • 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://druttle.ru/wb?keyword=human%20blood%20groups%20book%20pdf PDF link annotation
    • http://vashmaster.info/196964576984ridv.pdfIn PDF document text
    • https://nexirexosevexos.weebly.com/uploads/1/3/4/5/134500935/jonosojar_kamabimali.pdfIn PDF document text
    • https://pogefaduvo.weebly.com/uploads/1/3/5/3/135391099/f81edd.pdfIn PDF document text
    • http://goxuvux.22web.org/solo_songs_malayalam.pdfIn PDF document text
    • https://votivugaxowo.weebly.com/uploads/1/3/1/1/131163932/vilamomatetaku_lexedem_kiwipoledokuw.pdfIn PDF document text
    • https://toroborelap.weebly.com/uploads/1/3/4/8/134867907/tikolovewene.pdfIn PDF document text
    • https://cdn.sqhk.co/xojelumegasi/figcgcH/color_of_the_night_1994_full_movie.pdfIn PDF document text
    • https://limorevoxa.weebly.com/uploads/1/3/4/6/134611026/mepunen.pdfIn PDF document text
    • http://kismykeitio.best/zetagogulawokavebuspstr0.pdfIn PDF document text
    • https://mamapesuwilataj.weebly.com/uploads/1/3/4/8/134857931/xetekatirajodiluzaz.pdfIn PDF document text
    • http://igme.site/keziwabusujeliwu31c4w.pdfIn PDF document text
    • http://dudipoviju.22web.org/zuretibipatunajopuboxodu.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/kexamoxusinixu/soundcloud_for_pc_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/festivals_around_the_world_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/langrisser_mobile_soldier_guide.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_off0000e21d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE21D 5524 bytes
SHA-256: 0dd3a59e6b9555b92482fd7b6b42927944f6f1ee1eb07917d299b8ed4c0274d1
font_01_sfnt_off0000f4c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C2 10564 bytes
SHA-256: 631b0b56ad94e935e885b4aaffbeac96244db6e4b9548d982c1393af43f22263