Malicious PDF — malware analysis report

Static analysis result for SHA-256 0019352ab0e240b8…

MALICIOUS

PDF

72.4 KB Created: 2021-02-26 17:01:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2eb75ec0a6cdc2548ae799a6bbb6e736 SHA-1: 08fde444431cc52873999e1502cf04d6998111da SHA-256: 0019352ab0e240b87cc7d6e8b7045a1d1b29e9fcc10a3c68eee248f16a5d2e4c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://leonvi.ru/award?keyword=tears+in+heaven+ukulele+chords+pdf PDF link annotation
    • https://waxukazo.weebly.com/uploads/1/3/1/0/131071095/xogobepobu-xoraroputudid-jitumisevinodit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467325/normal_602c9648465e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391315/normal_5fc90abf87187.pdfIn PDF document text
    • https://rulakufip.weebly.com/uploads/1/3/4/4/134489053/mikeboxijele_dekimidemud_naleziluneg_foboduvujegutab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459477/normal_60115f4ca202d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415045/normal_602871463dd0d.pdfIn PDF document text
    • https://mipikarekegimo.weebly.com/uploads/1/3/1/6/131606279/nukalowev.pdfIn PDF document text
    • https://tujupanex.weebly.com/uploads/1/3/5/3/135333196/c70bd4cc.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/JicTEgh/lenovo_yoga_9i_15.pdfIn PDF document text
    • https://tugizikorosizo.weebly.com/uploads/1/3/4/5/134502987/63e066033abaf33.pdfIn PDF document text
    • https://vulemozebo.weebly.com/uploads/1/3/4/6/134693025/buvawoneke.pdfIn PDF document text
    • http://kemamibuke.mygamesonline.org/how_to_get_the_new_rock_pet_in_adopt_me.pdfIn PDF document text
    • https://cdn.sqhk.co/pekotegafod/i5jhiVA/movie_theaters_amarillo_tx_hollywood_16.pdfIn PDF document text
    • https://nosuzodudoj.weebly.com/uploads/1/3/4/5/134588086/eb1de3e.pdfIn PDF document text
    • http://tuderoba.getenjoyment.net/reddit_pokemon_go_promo_codes_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379987/normal_60388fe557161.pdfIn PDF document text
    • https://cdn.sqhk.co/bubiwalifeda/gzjaifh/alone_boy_images_pinterest.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wulibazosuxib.onlinewebshop.net/how_to_look_up_a_citation_number_in_texas.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/xosiwaxelixabok.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_off0000da50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA50 5316 bytes
SHA-256: 5301bcc5d0173b853a35b686114dde4ecd50989cfef47ff79b0d3eb4c14e78c4
font_01_sfnt_off0000ec66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC66 11892 bytes
SHA-256: 291d4eae67d87e69875bbcbb9479d4030a6588f9d902ffaffcd10dc0ca32bec2