Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ab11ae9eb58314a…

MALICIOUS

PDF

67.5 KB Created: 2021-03-04 16:59:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5c7ebd348764121985129efdf0c224a3 SHA-1: 151d59372a4cbd9dc362ad2b1faebe1d6a0d224f SHA-256: 3ab11ae9eb58314ab91c5c14a33de54ed807fd4e947a9ca3f9298645b463f77a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://fokemale.ru/award?keyword=skywalker+trampoline+15+ft+replacement+net PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366027/normal_6027321480040.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487631/normal_600c9e7e4b6e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403262/normal_5fcac6b71efd0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457560/normal_603048c509bd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426066/normal_602f7e59b5ebb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473651/normal_601f52bfeae83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490528/normal_603ebaa5c927a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379618/normal_6002d26997849.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490917/normal_602a0d63f2944.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427519/normal_601953163da3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369524/normal_6015bd83714ee.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4dc3fba-1ee7-4111-9831-690700970547/mbti_personality_test_results_analysis.pdfIn PDF document text
    • http://wazubumuxige.rf.gd/jesus_be_the_centre_guitar_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec3572bf-e086-4b3c-81fb-0d94641e2c73/angels_on_a_pin.pdfIn PDF document text
    • http://telewazikenap.rf.gd/wow_blacksmithing_guide_vanilla.pdfIn PDF document text
    • http://fofepiroxazu.epizy.com/zowiregolinomuzozejumek.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/speaking_ielts.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/whatsapp_autoresponder_pro_apk.pdfIn PDF document text
    • http://nekezoxugi.rf.gd/asme_welding_code.pdfIn PDF document text
    • http://kebanibaru.epizy.com/advance_wars_wallpaper_hd_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/940d0468-4d46-467c-8215-6745f53dfc6b/anker_bluetooth_tastatur_ipad_mini.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_off0000cacb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCACB 5520 bytes
SHA-256: e63a503b92f16e2b41cf3059b7b9728d9daa991bad6e05d6469ff72c629b678b
font_01_sfnt_off0000dda6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA6 10212 bytes
SHA-256: b6ede7285f439ef6635b262d1bde39147753ea4850ed3f50550534cf8e0ca0b1

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