Malicious PDF — malware analysis report

Static analysis result for SHA-256 210d5156ee593f23…

MALICIOUS

PDF

67.8 KB Created: 2021-03-03 06:35:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2b210e444aacdab865c5706ea895d654 SHA-1: 35c845a4240ca3a6f302df07be82a7ffdd18f8db SHA-256: 210d5156ee593f23df4a4692a5db8300d1f94daa1d23decb5b08e96a60e93a41
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://ponafet.ru/award?keyword=norton+anthology+of+poetry+6th+edition PDF link annotation
    • https://mopuxemunokele.weebly.com/uploads/1/3/5/3/135318458/vawivukinerep.pdfIn PDF document text
    • https://radogatibemif.weebly.com/uploads/1/3/2/8/132815767/7528915.pdfIn PDF document text
    • https://leneguvajetuse.weebly.com/uploads/1/3/1/3/131380977/919594.pdfIn PDF document text
    • http://jurofenopoxu.iblogger.org/cisco_vpn_client_ubuntu_16._04.pdfIn PDF document text
    • http://morasuxod.getenjoyment.net/brother_pt-65_manual.pdfIn PDF document text
    • https://tezefidusipenu.weebly.com/uploads/1/3/1/8/131857758/8873670.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/rubopojobekojosuxupu.pdfIn PDF document text
    • http://pozijawikubinun.myartsonline.com/what_is_a_good_lexile_range_for_a_9th_grader.pdfIn PDF document text
    • http://fedonefekipide.myartsonline.com/11898345047.pdfIn PDF document text
    • http://pirexorobeluj.epizy.com/sites_to_utorrent_movies_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/1008818917.pdfIn PDF document text
    • http://tovedevekep.rf.gd/suvev.pdfIn PDF document text
    • http://zujetisapapido.rf.gd/why_does_my_old_kindle_not_connect_to_wifi.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/national_dysphagia_diet_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/best_epub_reader_windows_10.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_off0000cd29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD29 5352 bytes
SHA-256: 2712ec3bb79243715a480f5de845b5dff1e9bc094e77044fe9a6f1c36485d084
font_01_sfnt_off0000df6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6B 10228 bytes
SHA-256: af8849f2a7d9905cb0053c4ae447a7237592d68657af91029790ee55072df02c