Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5c1a70613471cc6…

MALICIOUS

PDF

67.6 KB Created: 2021-02-26 04:51:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b7104cb6c03fbeab5b6c7940ea65fc73 SHA-1: b5ae945c335c29982392cedea02019c08c6bed55 SHA-256: f5c1a70613471cc6e0322c260bcb1bbf90585e06770a64fc38acfdaecafff05b
126 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
  • 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://baarspo.ru/award?keyword=future+perfect+continuous+tense+worksheet+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454671/normal_6029372da0913.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/qlikview_tutorial_point.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451377/normal_5ff67d6552e67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491173/normal_5fe99b197dbc6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444374/normal_5fcd29d87ec91.pdfIn PDF document text
    • https://tewedarutomos.weebly.com/uploads/1/3/2/3/132302993/5148243.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453720/normal_600d464cb6a9a.pdfIn PDF document text
    • https://falatunasozenu.weebly.com/uploads/1/3/4/7/134762474/vikixonarebegeda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452217/normal_6008662574bff.pdfIn PDF document text
    • http://vibolofisef.mywebcommunity.org/words_to_describe_good_poems.pdfIn PDF document text
    • http://lazujifoxupa.getenjoyment.net/daketumubupizo.pdfIn PDF document text
    • https://marizezibafive.weebly.com/uploads/1/3/4/8/134865590/861fe885157.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zitasixan.atwebpages.com/nothing_can_change_the_shape_of_things_to_come_movie.pdfIn PDF document text
    • http://sipanokule.onlinewebshop.net/which_statement_describes_alexander_the_great_military_achievements.pdfIn PDF document text
    • http://vogafaxusa.epizy.com/26566859205.pdfIn PDF document text
    • http://vimixof.onlinewebshop.net/zapagefipekubozorawidiru.pdfIn PDF document text
    • http://vuropomap.epizy.com/blacksmith_workshop.pdfIn PDF document text
    • http://vajavugozuw.epizy.com/fiwunabulelasetinawa.pdfIn PDF document text
    • http://livirava.atwebpages.com/what_smells_like_vinegar_in_my_car.pdfIn PDF document text
    • http://lowadof.epizy.com/11899733037.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_off0000cd6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6C 5112 bytes
SHA-256: 553eedf52480f029bb322b159db094d432ff47283ed9d835beb0dbecf6f2e8ef
font_01_sfnt_off0000dee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE7 9904 bytes
SHA-256: 69df3e0d0f0366ae3ebaff33d0e8847b576f53f2450e103037fafdcf86042531

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