Malicious PDF — malware analysis report

Static analysis result for SHA-256 d02874df91804694…

MALICIOUS

PDF

67.6 KB Created: 2021-01-28 16:45:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 00b7a2845c022172404060851d02f36e SHA-1: 1f5a39bc3d78ba9031b033e526a348e553558ef9 SHA-256: d02874df918046948f974c8d34733331ad5ae97328bf8e3af00200edbe40e051
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests the document is designed to host numerous links on disposable domains, a common tactic for phishing or distributing malware. The embedded URLs point to various domains, many of which are hosted on disposable platforms like Weebly, further supporting the link farm and potential phishing or malware distribution attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://bologen.ru/123?utm_term=nema+l6-30p+socket PDF link annotation
    • https://bexenexitefixu.weebly.com/uploads/1/3/4/7/134725849/kidoretase.pdfIn PDF document text
    • http://mijudivoxobo.iblogger.org/botulisme_humain.pdfIn PDF document text
    • https://jutegejedexugak.weebly.com/uploads/1/3/5/3/135384922/5769482.pdfIn PDF document text
    • https://patoxudiza.weebly.com/uploads/1/3/0/7/130739147/9d2a3fc10b303.pdfIn PDF document text
    • https://zipobirin.weebly.com/uploads/1/3/5/3/135386694/pepibetuzixamaze.pdfIn PDF document text
    • https://nosisakapu.weebly.com/uploads/1/3/4/7/134773138/d34fbd3751c5d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469863/normal_600144ad562a5.pdfIn PDF document text
    • https://xezagepu.weebly.com/uploads/1/3/4/9/134901129/zekulotex.pdfIn PDF document text
    • https://cdn.sqhk.co/mibazudifij/Eje2frA/doginapopuwubamobibuze.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/ohfhjje/zitaduganole.pdfIn PDF document text
    • https://jamibada.weebly.com/uploads/1/3/1/1/131164428/ba04a0194.pdfIn PDF document text
    • https://cdn.sqhk.co/fozuwasixeja/lhhaLE4/no_sew_metal_jean_buttons.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496381/normal_5fecc0383ec5b.pdfIn PDF document text
    • http://xomuxeje.22web.org/android_api_list_installed_apps.pdfIn PDF document text
    • https://cdn.sqhk.co/xewumoxu/MQ4hcjg/64527931862.pdfIn PDF document text
    • https://wotawodakel.weebly.com/uploads/1/3/5/3/135316359/dinunape_disazow.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/xeponodij/application_form_example.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/xalapikapuwepebetomo.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/gojusinob.pdfIn PDF document text
    • http://mikesivu.rf.gd/45999515290.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_off0000c967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC967 5508 bytes
SHA-256: cfd763820c1e7317d518d469657ec1ed5a6dc65c965c17ead5cc2addc8fd286f
font_01_sfnt_off0000dc18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC18 10924 bytes
SHA-256: 28ddc213fcd17b1148fa0bf22e33573d330c1fd42be4413c55885e1d9567f806

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