Malicious PDF — malware analysis report

Static analysis result for SHA-256 23330d441c62ac9d…

MALICIOUS

PDF

73.0 KB Created: 2021-02-25 10:52:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2fbdf451017d908bd76d537b157fb884 SHA-1: 69eff77f685621c405031f282f53213c9398cc7f SHA-256: 23330d441c62ac9d7fa6edcd5c6e21114e36211541f7b33199995cafaefcf9aa
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jacksth.ru/award?keyword=digital+sentry+safe+opening+instructions PDF link annotation
    • https://cdn.sqhk.co/terasovo/fHkhgKd/17104746179.pdfIn PDF document text
    • http://umkatrade.ru/em_casais_seguimos_estes_passos_para1at3b.pdfIn PDF document text
    • https://kuzuvofaneze.weebly.com/uploads/1/3/5/3/135394893/da5abbe32cb03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380858/normal_602c192993d87.pdfIn PDF document text
    • http://akmurzina.com/best_motivational_books_for_beginnersd7bom.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413373/normal_5ffa50bde8c15.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391925/normal_5fd03f873ab02.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuzigup/nRjchj4/15710554474.pdfIn PDF document text
    • https://cdn.sqhk.co/gapekozuwa/ehjvgjS/sausage_evolution_run_and_idle_clicker_games.pdfIn PDF document text
    • https://cdn.sqhk.co/miburixegapu/Gq1iiif/75304137151.pdfIn PDF document text
    • https://palogipotutaz.weebly.com/uploads/1/3/2/8/132814365/soviga-gazobasowuguve.pdfIn PDF document text
    • https://mevavenepid.weebly.com/uploads/1/3/1/6/131637679/800eb3ae89.pdfIn PDF document text
    • http://mkr-olimp.info/ps3_controller_on_pc_steam01kvp.pdfIn PDF document text
    • http://tuwavetatifida.iblogger.org/sasupakapilirumav.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/0LgiZOS/37342025911.pdfIn PDF document text
    • http://myimperfectmomlife.com/my_pcc_bookstorewc7c2.pdfIn PDF document text
    • https://cdn.sqhk.co/bitulore/eKvgcWS/dim_mak_death_point_striking_erle_montaigue.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365998/normal_5fc621f6f1d7e.pdfIn PDF document text
    • https://manumuxalobo.weebly.com/uploads/1/3/5/3/135387638/5ac5253a.pdfIn PDF document text
    • https://kazobutuzag.weebly.com/uploads/1/3/1/1/131164075/xigezezokejowilitos.pdfIn PDF document text
    • https://cdn.sqhk.co/sesexibanobu/s9idicg/49651676671.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tepusijanakigat.epizy.com/19525595179.pdfIn PDF document text
    • http://masatajomalopu.rf.gd/85229522386.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_off0000e1fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FE 5284 bytes
SHA-256: 407558137b33654009b1197f9b9d59c766c5fe0f1bf8b01dac93b66652beb3eb
font_01_sfnt_off0000f421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF421 9928 bytes
SHA-256: 2d6755b41929c2ad7a4a887ce0abb8c52b63fd74b564a5746f53e5ff1a290f34

Open this report in the interactive analyzer, or submit your own file for analysis.