Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2ce6413af0fde33…

MALICIOUS

PDF

70.4 KB Created: 2021-01-15 22:01:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 72cece6ee86192f1adae590b116b0c41 SHA-1: 12467267d2481fc074a2b30eee996423d7c2a96f SHA-256: b2ce6413af0fde330ae73e9f9d997c572b2821253cb555025d6c943e833f102c
252 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffking.ru/mozel?keyword=tabela+fipe+cerato+ex3+2011+manual In PDF document text
    • https://dolumipekino.weebly.com/uploads/1/3/4/6/134625527/2a2ee9b.pdfIn PDF document text
    • https://jesisime.weebly.com/uploads/1/3/4/8/134886507/6938106.pdfIn PDF document text
    • https://gawakugoful.weebly.com/uploads/1/3/4/7/134757428/c6c07.pdfIn PDF document text
    • https://site-1176840.mozfiles.com/files/1176840/visiwewanowik.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/hbvuCRc/48412120765.pdfIn PDF document text
    • https://birijoxumel.weebly.com/uploads/1/3/4/5/134587798/diditufibuwusa.pdfIn PDF document text
    • https://ganubosi.weebly.com/uploads/1/3/4/5/134506756/8635705.pdfIn PDF document text
    • https://gatojodegapov.weebly.com/uploads/1/3/1/6/131637656/d7297f48b9.pdfIn PDF document text
    • https://site-1177607.mozfiles.com/files/1177607/bss_full_form_in_nasm.pdfIn PDF document text
    • https://vamalogobiw.weebly.com/uploads/1/3/4/6/134696595/pipanijazib-wofomutesedim-zosukes-sopuwe.pdfIn PDF document text
    • https://site-1178403.mozfiles.com/files/1178403/xonod.pdfIn PDF document text
    • https://tedagenuv.weebly.com/uploads/1/3/2/6/132682668/dewexilura-dalikajo-nelujujirare.pdfIn PDF document text
    • https://site-1173336.mozfiles.com/files/1173336/woodshop_power_tools_list.pdfIn PDF document text
    • https://site-1177600.mozfiles.com/files/1177600/29438663240.pdfIn PDF document text
    • https://vilotirupoj.weebly.com/uploads/1/3/5/3/135328316/malubovebulixe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/xoxavubokukelesizuxe.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_off0000d422.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD422 5628 bytes
SHA-256: 80a8220b30d47bf64adad6d3d1009adeec1cf72a2b5b9f292a46223d65609d0e
font_01_sfnt_off0000e73f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73F 10768 bytes
SHA-256: 29a27c29daf9ec749ee00c2c3d30694a1ded65eda84daa314e452bd10fc6ccd6