Malicious PDF — malware analysis report

Static analysis result for SHA-256 912db3ac022b5497…

MALICIOUS

PDF

62.6 KB Created: 2021-02-15 03:58:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5905e767f1df04e200baee677c62af30 SHA-1: 390d7acd1494a35d8551149c4fe1891ffe0cd7a0 SHA-256: 912db3ac022b54972f0eca2eeb32cd481f481cd3d5c359f4d7feb916ec92b1b0
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://seumenha.ru/wix?keyword=chapter+19+acids+bases+and+salts+worksheet+answer+key PDF link annotation
    • https://cdn.sqhk.co/karapazepot/UUXcmUX/cannonball_show_2020_contestants.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422180/normal_5fdac047b34e0.pdfIn PDF document text
    • http://50offstore.info/kopizuwiqcf47.pdfIn PDF document text
    • http://ridunculus.com/29729533021hn62t.pdfIn PDF document text
    • https://cdn.sqhk.co/zikufivol/jjWidbM/kezafufazopubobi.pdfIn PDF document text
    • http://wordsideget.top/administracion_financiera_ochoa13oee.pdfIn PDF document text
    • http://helplnstagramcontact6088756.com/camscanner_premium_apk_cracked4ymfi.pdfIn PDF document text
    • http://skout.tech/breast_cancer_lecture_notescrpd2.pdfIn PDF document text
    • http://gordei2d.com/attendance_management_solution_p100j0xqq.pdfIn PDF document text
    • http://serviceforyou.site/free_digital_marketing_strategy_template_2019lfmxb.pdfIn PDF document text
    • https://cdn.sqhk.co/geruxibab/hajf1nS/animal_sounds_toys_for_toddlers.pdfIn PDF document text
    • http://megantv.site/el_principito8ky3m.pdfIn PDF document text
    • https://cdn.sqhk.co/didatife/aCahdjd/my_hitman_s_bodyguard_cast.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460457/normal_5fced18d4d46e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bedegotix.epizy.com/common_bacteria.pdfIn PDF document text
    • http://datidogebe.epizy.com/akkad_bakkad_video_song_pagalworld.pdfIn PDF document text
    • http://zoxokukazo.epizy.com/3726030681.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_off0000b95b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB95B 5672 bytes
SHA-256: 11ae5785206e46d6ccfba88cd4c0ee40c97f565849f284445c42e1ed4b046354
font_01_sfnt_off0000ccb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB3 9464 bytes
SHA-256: a6ffbef5d6bda476a037ba5db3846e2f863a723bcdca0332a0c43a2227878246