Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a48a108fb972a5…

MALICIOUS

PDF

73.1 KB Created: 2021-02-11 15:33:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5a38b1d6dcac75bd824b27771a5ff2b2 SHA-1: 2645c78a80c4e57ed90090009794a8249cd368d3 SHA-256: 22a48a108fb972a57d8fe41c2d13d8072b79aced40e221a530792c5be705dd89
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://jottigo.ru/wix?keyword=sygic+car+navigation+apk+mod PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450426/normal_5fde9fbe8e689.pdfIn PDF document text
    • https://sipexagugiresu.weebly.com/uploads/1/3/4/6/134607427/botipugeweled_sodururufuze_surafizo.pdfIn PDF document text
    • https://girosiwubu.weebly.com/uploads/1/3/0/7/130740458/1756571.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzomorikat/2riaibF/51004756364.pdfIn PDF document text
    • https://rukinuzozumar.weebly.com/uploads/1/3/4/0/134012371/613113.pdfIn PDF document text
    • https://cdn.sqhk.co/jabosuve/figc3qn/guluzi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465709/normal_5fd731b3a1fd1.pdfIn PDF document text
    • https://nuvisinuxaxo.weebly.com/uploads/1/3/1/3/131383681/lutidututoki-fabunorojunozon-kijixefelejuxa-zelef.pdfIn PDF document text
    • https://jobeluraxofedir.weebly.com/uploads/1/3/4/3/134317239/8438446.pdfIn PDF document text
    • https://kasitawudak.weebly.com/uploads/1/3/1/3/131380619/mowetujidusarukikale.pdfIn PDF document text
    • https://nezozavigarej.weebly.com/uploads/1/3/4/7/134727028/darupezil.pdfIn PDF document text
    • https://cdn.sqhk.co/tatogevi/i1G0Vtz/solar_system_model_to_scale_distance.pdfIn PDF document text
    • https://cdn.sqhk.co/gorokipo/IoHgcha/kobe_bryant_shirts_for_sale_near_me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471481/normal_5fdd8758429f2.pdfIn PDF document text
    • https://cdn.sqhk.co/pinebiven/ijgcwgp/jaratumufadajiratepar.pdfIn PDF document text
    • https://regogugone.weebly.com/uploads/1/3/4/8/134891767/volofexusefo-kesegaloga-dawezugodeguwim-jalugutej.pdfIn PDF document text
    • https://cdn.sqhk.co/taduzotul/f22qjfd/44722823701.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e06c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE06C 5512 bytes
SHA-256: 4df5258f78fd25fd232fc95c1c82cf257d530b5800c5e33cbbbbbc88fcbbf6ef
font_01_sfnt_off0000f32a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF32A 10592 bytes
SHA-256: e08691e15df7eaef3ca67e4df895ff13d5ecfc45d479495604f56e25405158f0