Malicious PDF — malware analysis report

Static analysis result for SHA-256 d133cac32f5f981d…

MALICIOUS

PDF

71.0 KB Created: 2021-03-04 19:00:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c190eb94d793230f1bfa6691306af3d6 SHA-1: 446f3b3d00fa4bb4ad7febb9b39d395015e3e3aa SHA-256: d133cac32f5f981dbd0777fa8276ef775f5fbd1561a0cbe3c315ab5eda5d9c0c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://vilenefex.ru/award?keyword=100+verbos+mas+usados+en+ingles+con+pronunciacion PDF link annotation
    • http://pomanonorajalam.22web.org/13730752392.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/wjf09r3/39028336398.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/hfjfThf/diduzivunituvetex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404308/normal_603d8246ebb0e.pdfIn PDF document text
    • https://waxevinibiwe.weebly.com/uploads/1/3/0/9/130969944/vomafibati.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/UI9jajg/megatamuwipazu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389792/normal_5febefd033c01.pdfIn PDF document text
    • https://vijapuloxo.weebly.com/uploads/1/3/0/7/130775263/6221535.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408594/normal_603d484d65b0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450440/normal_60327990d94ff.pdfIn PDF document text
    • http://mesugowogidevik.iblogger.org/marvel_spider_man_comics_free_download.pdfIn PDF document text
    • https://kofulunaj.weebly.com/uploads/1/3/5/3/135320514/mizaxamavebuv.pdfIn PDF document text
    • https://javisifuwo.weebly.com/uploads/1/3/5/3/135304639/bd30801b67e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuguwusilabibax.epizy.com/american_burger_menu.pdfIn PDF document text
    • http://womevilej.epizy.com/cyberpower_cp1500avrlcd_manual.pdfIn PDF document text
    • http://romezegipoxo.epizy.com/kudupomi.pdfIn PDF document text
    • http://mujaxeb.rf.gd/varepezikamobipa.pdfIn PDF document text
    • http://muzezal.rf.gd/goxoxotikakojuwemava.pdfIn PDF document text
    • http://patabajisof.epizy.com/bose_soundsport_earbuds_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03660a91-0f64-4450-b421-1ceae7c67428/defap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab896e40-9a38-4dd8-8c31-6fa4583c9b0a/fenibajitulijax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5eac7e0a-631e-4fb4-a61f-76035c39acaf/netgear_readynas_nv_rnd4000_specs.pdfIn PDF document text
    • http://koxowasone.epizy.com/happy_birthday_song_sheet_music_with_letters.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_off0000d573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD573 5692 bytes
SHA-256: 5324e06c0d2d005c17ff361a698f16804e2ab0ca0be736c6bf8436751ad8c8eb
font_01_sfnt_off0000e8bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8BB 10976 bytes
SHA-256: f0df84cb6208c2cb9c9749122c4cd3847383fdd70a8fe49f6f2413a25da66ed5

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