Malicious PDF — malware analysis report

Static analysis result for SHA-256 096c6110c91d4e47…

MALICIOUS

PDF

71.8 KB Created: 2021-02-24 21:32:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 74b6b66ee92041cca670951571203702 SHA-1: e5d4902d54366091c14e56b3c0c31698edbf4115 SHA-256: 096c6110c91d4e477f6d0f6a04464789493b2a0227a08c65834f3fc72658bf42
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://jottigo.ru/wix?keyword=arp+isd+band PDF link annotation
    • https://doxorovovo.weebly.com/uploads/1/3/4/4/134479089/1195135.pdfIn PDF document text
    • http://safijejog.mygamesonline.org/pujar.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/saying_to_remember_phases_of_the_moon.pdfIn PDF document text
    • https://tisavivo.weebly.com/uploads/1/3/4/0/134040567/ccafee476f8.pdfIn PDF document text
    • https://rifewageza.weebly.com/uploads/1/3/5/3/135349229/rafabumasu.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/sugirebuxafuxokedexamufidg4r6o.pdfIn PDF document text
    • http://dosijefa.mypressonline.com/problemas_de_la_educacin_en_mxico_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383922/normal_602ec87fbf74e.pdfIn PDF document text
    • https://vanewuzopawibo.weebly.com/uploads/1/3/0/8/130814706/eb984bafbc.pdfIn PDF document text
    • https://toxofeleziwogiz.weebly.com/uploads/1/3/1/4/131406173/filalarezed.pdfIn PDF document text
    • http://kreativoblako.com/powirebebot2xgao.pdfIn PDF document text
    • https://xupemapimosow.weebly.com/uploads/1/3/0/7/130776757/xufudolabif_zukevinofojov.pdfIn PDF document text
    • https://piturerakilapes.weebly.com/uploads/1/3/0/7/130775197/3055042.pdfIn PDF document text
    • https://wozukepob.weebly.com/uploads/1/3/4/0/134017809/6985531.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479917/normal_600bd21943dd3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1BA 4528 bytes
SHA-256: 840b1de74c69d097e2b5a185759add72f61ae22fae2cc43324b636a4e0eca15c
font_01_sfnt_off0000e0f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F9 10572 bytes
SHA-256: d2eb29307ec547d3b66f7752e49e6fb9e89d75672149695388a221795aabfe52
font_02_sfnt_off000104b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B8 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361