Malicious PDF — malware analysis report

Static analysis result for SHA-256 042dda95aa1f5804…

MALICIOUS

PDF

68.3 KB Created: 2021-02-19 00:26:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5f8beeab9668086f9cffaf398343d085 SHA-1: 94cb2efff15fc6579db4de4e3f0ada9fffa993b1 SHA-256: 042dda95aa1f5804eca740ba7ba9dea246c3e1d253dd1cdcacfa820183664b1a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=wahl+replacement+6-position+guide+comb PDF link annotation
    • https://jinijazi.weebly.com/uploads/1/3/4/6/134668286/vukebunuvuka.pdfIn PDF document text
    • https://lopuxewununoj.weebly.com/uploads/1/3/4/7/134748711/1f03c438a854.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/HwzhcHK/gepebanipiroj.pdfIn PDF document text
    • https://cdn.sqhk.co/raxulaxesob/CgjV4if/konazez.pdfIn PDF document text
    • http://bbflowers.net/angle_relationships_in_circles_answersn9loo.pdfIn PDF document text
    • https://cdn.sqhk.co/lesebonun/aJhj6hb/gotiwo.pdfIn PDF document text
    • https://zizuvikugit.weebly.com/uploads/1/3/1/3/131384696/55e5a9eeddecd89.pdfIn PDF document text
    • https://cdn.sqhk.co/fekuseguxe/nijG4b2/bubble_spinner_2_y8.pdfIn PDF document text
    • https://medumoxil.weebly.com/uploads/1/3/1/0/131070238/xelojuxuke.pdfIn PDF document text
    • https://bejivuvepezera.weebly.com/uploads/1/3/4/4/134437422/bf3dc63fc365.pdfIn PDF document text
    • http://dresdenpharma.ru/anritsu_checkweigher_manualk5oqs.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/ghjfrjh/company_of_heroes_2_complete_edition_review.pdfIn PDF document text
    • https://xuredetinumimo.weebly.com/uploads/1/3/4/6/134630251/2769697.pdfIn PDF document text
    • http://003-center.ru/dental_trauma_guide_avulsed_tootha89j8.pdfIn PDF document text
    • http://azalea.store/walmart_black_friday_tvs_smart_tvsxvanv.pdfIn PDF document text
    • https://cdn.sqhk.co/lilaxikixo/c7Wtv0B/hamster_life_cycle_images.pdfIn PDF document text
    • https://cdn.sqhk.co/zodunoxurob/jajanao/business_plan_appendix.pdfIn PDF document text
    • http://fruitslope.online/86201217569f6fim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cc72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC72 5824 bytes
SHA-256: 70b996e9942f817dd6f76f925ca30c4054b64158ccb2ba82f887adc10d9e81b9
font_01_sfnt_off0000e028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE028 9956 bytes
SHA-256: b14609cc5aa112609a05123f616bcc430811d2b55e19e2c109c6b214daf2112a

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