Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d3a016de94bc330…

MALICIOUS

PDF

65.2 KB Created: 2021-02-13 01:57:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 92eeffeceb7f6009c6f16b70e1e04b12 SHA-1: 6529993f2c1e791e2b5cdde2205952c015acffd5 SHA-256: 7d3a016de94bc33060732f27c2b1234336839d5dbc13bf035a73ba2acd4cb330
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=aota+occupational+profile+template+word+doc PDF link annotation
    • http://vebofituzor.iblogger.org/methotrexate_hepatotoxicity_guidelines.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384296/normal_6007902a72c8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421040/normal_5fd164ca38f7f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371787/normal_5fcc9a6e247c7.pdfIn PDF document text
    • https://mobinefoju.weebly.com/uploads/1/3/1/3/131398425/bc8718c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455376/normal_5fd914f438f17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387411/normal_60197478e6040.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/lhageba/ninjago_blade_cycle.pdfIn PDF document text
    • https://sijetuso.weebly.com/uploads/1/3/4/4/134499475/1b017.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367281/normal_5fc906ea41727.pdfIn PDF document text
    • https://mizijuwewis.weebly.com/uploads/1/3/4/3/134392366/ropabovozipuwuxesut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470412/normal_6004a96e9f969.pdfIn PDF document text
    • https://tidosivapozagul.weebly.com/uploads/1/3/4/3/134390518/1769068.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/fusopoxipo/wififimuze.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/avidina_del_huevo.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/87620194071.pdfIn PDF document text
    • http://bevevekafoli.epizy.com/74180706861.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_off0000c2d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2D4 5204 bytes
SHA-256: f119d4a4db4c838dfed55a92e854c4f48b2980432d1f2f33c73f6a51b7cfac12
font_01_sfnt_off0000d486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD486 10300 bytes
SHA-256: 5a5aaeabfeafa46cc7f2fda5d8217c4ad5656892f26a8563ec48b897de39c5c6