Malicious PDF — malware analysis report

Static analysis result for SHA-256 72d0abffa0bee426…

MALICIOUS

PDF

72.4 KB Created: 2021-02-01 09:38:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b8006697fac3bcf1104b104c395f1425 SHA-1: db2ffe329e5d3f515f523ff75fb944f22019e789 SHA-256: 72d0abffa0bee426002bac221ae37bc4ef03c152bb3ce5c8bfbd7b15e4eb23c9
184 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
  • 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/aws?utm_term=cracked+android+games+apk In PDF document text
    • http://metinozub.iblogger.org/3rd_grade_common_core_math_fractions_worksheets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387718/normal_5ffd55281f582.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482406/normal_601742a6aea40.pdfIn PDF document text
    • http://xulikugo.iblogger.org/27291236327.pdfIn PDF document text
    • http://widevuvi.22web.org/71861620857.pdfIn PDF document text
    • https://febotobelem.weebly.com/uploads/1/3/0/7/130739539/sukebi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413867/normal_5ff588083ee3f.pdfIn PDF document text
    • http://lumacy.site/nitro_pro_9_free_download_with_crack_32_bitlp3ze.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/tazopaju/90236948163.pdfIn PDF document text
    • http://pifexowofimef.epizy.com/kepokozegabeximuk.pdfIn PDF document text
    • http://sejigesenevemi.epizy.com/balloon_card_template.pdfIn PDF document text
    • http://tasukifuputuf.epizy.com/bpm_ka_full_form_kya_hota_hai.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/mhw_iceborne_bow_guide.pdfIn PDF document text
    • http://nipesuvaz.epizy.com/33882231555.pdfIn PDF document text
    • http://rusozetowozo.epizy.com/us_guided_piriformis_injection.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_off0000dfe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE1 5332 bytes
SHA-256: f090937f809645e86958d38d185cf6d870b96622e05806953724689eb2daa72d
font_01_sfnt_off0000f1ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1ED 10252 bytes
SHA-256: dec8e71faf7da2d3a5842bfc3c104c8805a14fb61ebed66671b4dfe2c141532a