Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db1698d568be6b2…

MALICIOUS

PDF

68.0 KB Created: 2021-03-05 07:09:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1e9da4a555039446257bbf50094a22a8 SHA-1: b5dccbde5c251ed0f7c4c6bd52139fc4e8b12a73 SHA-256: 7db1698d568be6b266348f803a9ae3b0162e7b92196547d4e2639a6ef8066335
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://druttle.ru/wix?keyword=rotation+about+a+point+worksheet+tes PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4445107/normal_5febf4a287449.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414860/normal_5fc89d64b13f1.pdfIn PDF document text
    • http://golesaluwo.66ghz.com/hindenburg_research_report.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369329/normal_602e25ab62919.pdfIn PDF document text
    • http://bezanaralizeke.iblogger.org/how_long_to_cook_a_turkey_in_a_masterbuilt_electric_smoker.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445749/normal_600dc7a70678d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495042/normal_5ffa359fa82e3.pdfIn PDF document text
    • http://help-bluebadgecustomer.com/12583087935lt42r.pdfIn PDF document text
    • http://dirupomavi.iblogger.org/autocad_lt_2019_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gowofar.rf.gd/beretta_uniform_pro_double_soft_gun_case.pdfIn PDF document text
    • http://tininababa.rf.gd/bigasuo_projector_manual.pdfIn PDF document text
    • http://besuwodusibix.rf.gd/django_form_charfield_disabled.pdfIn PDF document text
    • http://wikijivifefa.rf.gd/2015_honda_accord_ex-l_owners_manual.pdfIn PDF document text
    • http://zinipaxafuzonik.rf.gd/wagufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aab6d161-26c9-4dd3-ae4f-a523e3f135c3/best_android_programming_language_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4233039d-a79f-44e4-abd3-71f4153ea007/54052973531.pdfIn PDF document text
    • http://baperosuvo.rf.gd/the_selection_book_2_read_online_free.pdfIn PDF document text
    • http://fuvituze.epizy.com/58922052456.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7851dbc5-40dc-479a-adf5-c76f3acc2017/pigigukamiwe.pdfIn PDF document text
    • http://lurivukilurufex.epizy.com/baby_jogger_city_mini_gt2_double_chicco_adapter.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_off0000cf23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF23 5180 bytes
SHA-256: a5041c0a20cfc3a641b0c31b1693f0b16465ebc3aa3fa6fefd7fce4a81bfa66d
font_01_sfnt_off0000e0cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0CC 9948 bytes
SHA-256: bf840120693566163f8ba5f84794973e385fa6e79774e81c51b68ceda768c93b

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