Malicious PDF — malware analysis report

Static analysis result for SHA-256 c42ea9f96d7a4cb2…

MALICIOUS

PDF

69.9 KB Created: 2021-02-22 02:49:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: e9cc3ca7a7c01346b4935f1451705125 SHA-1: 35f4ce3faddb2d2ea9daa3aea60c6df9be5212ba SHA-256: c42ea9f96d7a4cb2798c62f70448850fb527c7855160835147e739e6d41b4394
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://jottigo.ru/wix?keyword=sister+location+apk+android+1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402721/normal_600e257d3c32b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374851/normal_5fd5f575853f5.pdfIn PDF document text
    • https://dagakaxogofawi.weebly.com/uploads/1/3/4/6/134699425/ropiz-wutevoduk-posinofa-vogoxo.pdfIn PDF document text
    • https://biwawidojimu.weebly.com/uploads/1/3/4/6/134648839/1987816.pdfIn PDF document text
    • http://lasns.fun/what_is_expository_text_and_example6witb.pdfIn PDF document text
    • http://com-servers.online/funny_love_animation_quotesl2eak.pdfIn PDF document text
    • https://cdn.sqhk.co/woxemumi/hjWgiT4/retur.pdfIn PDF document text
    • http://xsale.trade/chicago_reader_music_guidep8isr.pdfIn PDF document text
    • https://cdn.sqhk.co/duwewofowus/HpEjehj/tumovab.pdfIn PDF document text
    • https://cdn.sqhk.co/maweveju/ejdgh2c/cute_gacha_life_outfits_edits.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495262/normal_5fffde87ba21b.pdfIn PDF document text
    • https://cdn.sqhk.co/foletesubuf/hdSgcgh/mizaraxesuzukinur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rajuleneto.epizy.com/autobiographies_of_famous_personalities_free.pdfIn PDF document text
    • http://zapudeni.epizy.com/ashes_cricket_game_apkpure.pdfIn PDF document text
    • http://komadolosa.rf.gd/spring_boot_2_tutorial.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_off0000d566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD566 5284 bytes
SHA-256: 34ef5d2fe3ef49b8a1adf406955a5f6f4534e585ef1218158e4f0cb224be26ed
font_01_sfnt_off0000e773.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE773 10276 bytes
SHA-256: 1a0913c8e3e4d318d5198faf0e7346ae65379a739bccaeb966d8e725dd15ae58