Malicious PDF — malware analysis report

Static analysis result for SHA-256 53552927a1ef589c…

MALICIOUS

PDF

68.6 KB Created: 2021-03-04 00:21:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 80ec972f36735fe7afc070ba7dd1c36c SHA-1: f410442857c0f869fd5c080950c6268148fc3141 SHA-256: 53552927a1ef589c270850198f82b861bfdd46094925b4e46019a8c671efc7af
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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/award?keyword=dell+precision+t1700+motherboard+drivers PDF link annotation
    • https://soravetojovon.weebly.com/uploads/1/3/4/8/134890923/saxizifeb.pdfIn PDF document text
    • http://arm-watch3.club/42463180202hzdll.pdfIn PDF document text
    • https://jifofavara.weebly.com/uploads/1/3/4/6/134631997/jesukiferowepix.pdfIn PDF document text
    • http://popularchoice.space/89617668301f7yjk.pdfIn PDF document text
    • http://tryici.xyz/68741018735wfi7g.pdfIn PDF document text
    • https://gimisezijumini.weebly.com/uploads/1/3/1/4/131453276/juzamuto.pdfIn PDF document text
    • http://gagitevanonuti.mywebcommunity.org/35959567814.pdfIn PDF document text
    • http://usersdeviceprotectionservice.site/call_of_cthulhu_7er4uxt.pdfIn PDF document text
    • http://polikarmonolit.ru/zisogavibopomizifijodotuwvjarv.pdfIn PDF document text
    • http://oneitshop.pro/what_is_development_biology_embryonick71rw.pdfIn PDF document text
    • http://falorilipeb.mywebcommunity.org/38377226238.pdfIn PDF document text
    • https://lixezakokigek.weebly.com/uploads/1/3/4/5/134596317/222234fe6d816e3.pdfIn PDF document text
    • http://wipunemobak.mygamesonline.org/beputalog.pdfIn PDF document text
    • http://cardioactiveitalia.site/sisirumukutabgqgd9.pdfIn PDF document text
    • http://bokaxakoz.sportsontheweb.net/how_do_i_create_a_simple_budget_in_excel.pdfIn PDF document text
    • https://gegilegaf.weebly.com/uploads/1/3/1/3/131383227/7195377.pdfIn PDF document text
    • https://luweregovim.weebly.com/uploads/1/3/4/6/134661757/pabiwezuvuxaxemok.pdfIn PDF document text
    • https://lisiruzefixa.weebly.com/uploads/1/3/4/4/134495270/mawikin.pdfIn PDF document text
    • https://belinadojo.weebly.com/uploads/1/3/1/6/131607131/wujopasijabobokegeta.pdfIn PDF document text
    • http://zomolejefej.mywebcommunity.org/gukogegivofuliguranape.pdfIn PDF document text
    • http://digitalmicroteter.xyz/ogilvy_on_advertising_paperback0oynf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://peledopa.myartsonline.com/sikififegidot.pdfIn PDF document text
    • http://besafetusupug.atwebpages.com/xobiwojikiwavu.pdfIn PDF document text
    • http://pexirud.onlinewebshop.net/rod_of_seven_parts_adventure.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_off0000cf1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1B 5788 bytes
SHA-256: e61c2600e87767deb8aeb6580589d67e46c78e48023a0113eaef49f85dfcc14a
font_01_sfnt_off0000e2a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A7 9824 bytes
SHA-256: 765a4232184c3838a30c2fb95e64ad1ece4f3e09a511afbcc8218b1a126d057f