Malicious PDF — malware analysis report

Static analysis result for SHA-256 227e945daac5d464…

MALICIOUS

PDF

71.5 KB Created: 2021-02-19 05:16:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 9e6ea0919dad38e610d1da17b3d98120 SHA-1: 31491a19c1289adc612ab99fdfb6a5588dae7e5b SHA-256: 227e945daac5d4645becf049e303f52e54564ce71bcad44ba49da348fdfeb06e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/123?utm_term=i+am+who+i+am+bible+verse+new+testament PDF link annotation
    • http://wagajikis.iblogger.org/vamadofutemevova.pdfIn PDF document text
    • http://kovemiwixipogaf.66ghz.com/the_leftovers_imdb_parents_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/livefivepa/zvhcfCY/natasikuxowaxo.pdfIn PDF document text
    • http://24goodstore.site/956312713271al6y.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/did3Iaa/xasazezinulevivolobajubuv.pdfIn PDF document text
    • https://cdn.sqhk.co/ferobisuw/Hjb2hby/test_virus_computer.pdfIn PDF document text
    • http://wspring.space/depunezugufoxit23ydt.pdfIn PDF document text
    • http://dusosax.66ghz.com/lekokebowepekiwekar.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/didowugorokirug/kovevivorukoboduji.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/45972584428.pdfIn PDF document text
    • http://mowigefugitixa.epizy.com/atheros_ar9271_wireless_driver.pdfIn PDF document text
    • http://nomapalugaji.epizy.com/66151862698.pdfIn PDF document text
    • http://jebejabekuja.epizy.com/gilbert_castellan_fisicoquimica.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/academic_reading_test_12_answers.pdfIn PDF document text
    • http://ramasewo.epizy.com/legacy_of_discord_mount_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_off0000dbe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE9 5152 bytes
SHA-256: e558c87f399a1d1e44382a40dfca34df34c442f415dbe759d8869b387fc79619
font_01_sfnt_off0000ed58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED58 10560 bytes
SHA-256: 44088feaf3a7ad9c94211e311aaddeef727b4cc9919de5f65d5f1dc4da8ea484