Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bec4235dcb8e17a…

MALICIOUS

PDF

72.4 KB Created: 2021-02-27 23:10:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 5e4a3ae70c3213146646b71253402f45 SHA-1: 1ccfb0f4121b3063b3f03aaba625d8e505fbc0ca SHA-256: 4bec4235dcb8e17a8fe2205918ccfc3af9c89afbaa94ff965a6249347681320f
126 Risk Score

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://zajinet.ru/123?utm_term=insinkerator+badger+500+warranty PDF link annotation
    • http://rte-ita.fun/foxbet_super_6_winnersy5bk5.pdfIn PDF document text
    • http://euromarket.pro/jumomiroba5u1bo.pdfIn PDF document text
    • http://sibuvre.com/north_indian_non_veg_food_listrtotg.pdfIn PDF document text
    • https://koxewujinam.weebly.com/uploads/1/3/3/9/133986689/0840c7.pdfIn PDF document text
    • https://riwivado.weebly.com/uploads/1/3/0/7/130739124/fudil-tedapitone-loworutifin.pdfIn PDF document text
    • https://varepakizadi.weebly.com/uploads/1/3/2/7/132740548/wumili.pdfIn PDF document text
    • https://japujavawewiri.weebly.com/uploads/1/3/2/6/132696154/24d7fc2dea88.pdfIn PDF document text
    • https://bojetenabadi.weebly.com/uploads/1/3/5/3/135394614/kawajilimuni.pdfIn PDF document text
    • https://togimapobeno.weebly.com/uploads/1/3/4/6/134649298/tonut.pdfIn PDF document text
    • https://wuzipagaxu.weebly.com/uploads/1/3/0/7/130776492/loxorukirugiv.pdfIn PDF document text
    • https://lezafopiga.weebly.com/uploads/1/3/4/6/134628758/2143893.pdfIn PDF document text
    • https://balexasureg.weebly.com/uploads/1/3/0/8/130874281/3ecd1fc4d5.pdfIn PDF document text
    • http://ourfutures.space/33580302361msnii.pdfIn PDF document text
    • http://euroshopmn.space/sudopujuvixupafhkdz5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jonunoxixopumit.epizy.com/wesuwur.pdfIn PDF document text
    • http://zixupikitudid.epizy.com/85779880311.pdfIn PDF document text
    • http://duwagisu.epizy.com/wenibugovirawokodubisax.pdfIn PDF document text
    • http://lovenewaw.rf.gd/86783031906.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_off0000d971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD971 5560 bytes
SHA-256: 1fee425d9d7ed28987014fd637c5aee297b1aa089dc7398e4509112c657a6674
font_01_sfnt_off0000ec85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC85 11900 bytes
SHA-256: e66a6d5c61776256743a21a0255c33fe6022ddca3887e9b7298ec6084ec6ad99