Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c15e41026f9236…

MALICIOUS

PDF

82.6 KB Created: 2021-02-11 06:55:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f4943dca7c778664220b202f363320d0 SHA-1: 6d42592cb5fd31407c77e951e69ccde0faa80953 SHA-256: 92c15e41026f9236ff09f8461166691b972aa654b0b27b5a33aee243ae7a02c9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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/123?utm_term=kia+sorento+2011+service+repair+manual+free PDF link annotation
    • http://muzoc.xyz/tenakisamada4ylyb.pdfIn PDF document text
    • https://cdn.sqhk.co/luwiwaduna/cIjjhhQ/walking_dead_season_11_spoilers.pdfIn PDF document text
    • https://cdn.sqhk.co/wenewojufaj/fSsjj5O/4589255156.pdfIn PDF document text
    • https://norotenivepele.weebly.com/uploads/1/3/4/0/134042349/sugalaxujede.pdfIn PDF document text
    • http://shopsmmv.site/domagumibalitaxifuvutgwf1.pdfIn PDF document text
    • https://tamilazubi.weebly.com/uploads/1/3/4/6/134604156/vowidegexope.pdfIn PDF document text
    • https://magapevalapa.weebly.com/uploads/1/3/0/8/130874167/4803755.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutowede/jbTpjg3/infinity_loop_spiritual_meaning.pdfIn PDF document text
    • https://kiriwalukejogof.weebly.com/uploads/1/3/4/3/134310578/wumuzekukuj.pdfIn PDF document text
    • https://dutajidadu.weebly.com/uploads/1/3/4/7/134730474/xuloxaruz-kanozune-xumejiloma.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/cajdOjg/1702205297.pdfIn PDF document text
    • http://ehaberdevlet.com/kensei_guide_for_honor_201828b42.pdfIn PDF document text
    • https://dekupepevimozis.weebly.com/uploads/1/3/0/7/130738652/d04f507266101.pdfIn PDF document text
    • http://vknart.xyz/fipunimudutakusugqgna.pdfIn PDF document text
    • https://cdn.sqhk.co/pujapipiwat/Ajj8Ohg/final_fighter_mod_apk_obb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mimedixaresev.epizy.com/24193189657.pdfIn PDF document text
    • http://widafasamuj.epizy.com/kasixusalokoxidemojurefo.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/zonagusowapi.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_off000105ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105AB 5516 bytes
SHA-256: 11b5457b76f1b08277bbe1347600c59995a97ee2c719915453ecb947f71b5a44
font_01_sfnt_off0001186b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1186B 10712 bytes
SHA-256: e85d99601b57da4d85dc54ed862fbb875e64b7183451bfe817c5e3c718fa9183