Malicious PDF — malware analysis report

Static analysis result for SHA-256 d083224b3b262fa5…

MALICIOUS

PDF

73.1 KB Created: 2021-03-02 18:32:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 78a9ec4b7e6f89170fa1ffb584ebd613 SHA-1: d0660f2dc9ff30aa780ef8e99fc6181dd41ee26c SHA-256: d083224b3b262fa514c4b1bf112a3476f76763dc6af6702c1af4c3af4bcd6753
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/award?keyword=how+to+shut+off+rainbird+5000+sprinkler+head In PDF document text
    • http://ita-talia.fun/720p_hd_camera_eyewear_manualq041z.pdfIn PDF document text
    • http://tixesikixux.mygamesonline.org/58731986484.pdfIn PDF document text
    • https://xadutodibuj.weebly.com/uploads/1/3/1/1/131164520/pilexupunukabajefelo.pdfIn PDF document text
    • http://wubowobipevoto.mywebcommunity.org/when_honda_rebel_300_launch_in_india.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476429/normal_601d13c6b35a2.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/wamatasamegu/46058909235.pdfIn PDF document text
    • http://perexuwofogefo.onlinewebshop.net/navy_advancement_center_pensacola_fl.pdfIn PDF document text
    • http://jozixal.epizy.com/armies_of_the_night.pdfIn PDF document text
    • http://rawuvotatu.rf.gd/dovedale_primary_school_ofsted_report.pdfIn PDF document text
    • http://zewadomi.myartsonline.com/does_the_lg_vn170_have_a_sim_card.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/pagoru.pdfIn PDF document text
    • http://xutewajimereno.epizy.com/chiller_trane_rtaa_manual_espaol.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_off0000dfc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC9 5652 bytes
SHA-256: 75117b564f1cfa36ae9c390b10ac6ac6b27acf1a5149d3c76457a7982397329e
font_01_sfnt_off0000f30d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30D 10604 bytes
SHA-256: 311c254d14740a81ce9da13b3e17c47055ddad0db5eb05ff4e53441764d45290