Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfd1742b8ef59763…

MALICIOUS

PDF

73.0 KB Created: 2021-03-01 23:27:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5e7d931a9cc39760504d00e592107565 SHA-1: 7d7e114060805144a328f5dbfb608df701e0783a SHA-256: dfd1742b8ef597631b5db41b2dcc23ad7c74c7e46e2fe87d9672f0abc6ccb096
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://maypoin.ru/wix?keyword=just+build+with+guns PDF link annotation
    • http://reduslim-sito.site/nilezifopdwhy.pdfIn PDF document text
    • https://cdn.sqhk.co/furigelo/4QjficZ/siraruxinubujesegejif.pdfIn PDF document text
    • https://tawojupaker.weebly.com/uploads/1/3/4/8/134885799/dokogotugula-tekazuxafi.pdfIn PDF document text
    • http://rerubin.space/newsletter_template_definitionh1btr.pdfIn PDF document text
    • http://kejoxemubogese.mywebcommunity.org/leludegazun.pdfIn PDF document text
    • http://mainsale.pro/hp_pavilion_27_fhd_review1bzcs.pdfIn PDF document text
    • http://ganitigusawev.mygamesonline.org/xikejanagorufowi.pdfIn PDF document text
    • https://mixosikopas.weebly.com/uploads/1/3/4/3/134383158/7291bf7d.pdfIn PDF document text
    • https://cdn.sqhk.co/zenekukera/ghglrgh/xazat.pdfIn PDF document text
    • http://xefawojuj.mygamesonline.org/31301821405.pdfIn PDF document text
    • http://gouliwer.online/xuromonedomewe1rwe5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://rijonitapadon.myartsonline.com/what_kind_of_anesthesia_is_used_for_knee_surgery.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/50379339885.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/guided_meditation_anxiety_honest_guys.pdfIn PDF document text
    • http://gosaduzunake.myartsonline.com/que_significa_taller_en_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/instalacin_calefaccin_gas_natural_precio_aproximado.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d460.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD460 4656 bytes
SHA-256: 1347d6b3925930698281bceb5fa63c9e7e472ad13835e941d5e8ebc62c72ae4c
font_01_sfnt_off0000e426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE426 10760 bytes
SHA-256: eb92922c9b60881d8ddb0c988649e5fc72dc7d7d8fb890dd37cd18f32262fa08
font_02_sfnt_off000108ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108AE 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c