Malicious PDF — malware analysis report

Static analysis result for SHA-256 16e40151097c2f56…

MALICIOUS

PDF

73.4 KB Created: 2021-02-15 12:52:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: dbfcc12ed61815ebde4f0a01cbc25c87 SHA-1: 37c4f5d4fc1859f0c7ddb56fd3d5670554c2838c SHA-256: 16e40151097c2f560d3b88201299fc7096a31baedb045566aacf5e561e76bb93
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wb?keyword=stihl%20ms180%20chainsaw%20for%20sale PDF link annotation
    • http://momijuluxesapek.iblogger.org/property_finder_egypt_report.pdfIn PDF document text
    • https://meronikam.weebly.com/uploads/1/3/4/7/134705372/zemanusalibav.pdfIn PDF document text
    • https://jekodijup.weebly.com/uploads/1/3/4/4/134490718/2819058.pdfIn PDF document text
    • https://terigemi.weebly.com/uploads/1/3/1/8/131856376/cd86dfbf7cb4e5.pdfIn PDF document text
    • https://zupuluduwiwafop.weebly.com/uploads/1/3/2/6/132681460/nutoxij.pdfIn PDF document text
    • https://jenodaxadow.weebly.com/uploads/1/3/4/0/134012655/9241505.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/gZiahe8/zagize.pdfIn PDF document text
    • https://kuvixirizu.weebly.com/uploads/1/3/0/7/130739951/gisiru-boxevesigaxi-watedoz-miravozub.pdfIn PDF document text
    • http://daravto18.ru/html5_forms_templates_free7mval.pdfIn PDF document text
    • http://kigurumi.org/7707193151464ssz.pdfIn PDF document text
    • http://izzzaaa.space/16116222368f61xd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kewivawegimomu.epizy.com/human_ecology_journal.pdfIn PDF document text
    • http://pagosunizuboroz.epizy.com/dujosuxaniwe.pdfIn PDF document text
    • http://betizig.epizy.com/clash_of_clans_pc_no_bluestacks.pdfIn PDF document text
    • http://gelutusuxipedib.rf.gd/bangla_tv_apps_for_android_free.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_off0000df5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5F 5704 bytes
SHA-256: e498eae3c6855dea1fabf2853552ddc5e94f4b0c01374bb684bb27eaee20e799
font_01_sfnt_off0000f2bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BB 11292 bytes
SHA-256: a42a466129c3dd6335fd5c5b8ed3e6204a5d40ad85e4d3fa49e224210a7a8bdb