Malicious PDF — malware analysis report

Static analysis result for SHA-256 68e67d3ef5a6576a…

MALICIOUS

PDF

70.9 KB Created: 2021-02-15 15:29:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: dce7c02348eadc7e67fc75b9e5ccc199 SHA-1: 477b6449d8de3d897e0e2239f6d065e4f6350edf SHA-256: 68e67d3ef5a6576a766b3994ce0ee5e1aa33eb9f36698aaedb2fe8e38ceaeea9
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/aws?utm_term=family+feud+game+online+facebook PDF link annotation
    • https://lizitizesibegip.weebly.com/uploads/1/3/4/6/134685526/zuwugor-pinolomavazupu-nujogozezupen-lenotena.pdfIn PDF document text
    • https://zedurobarudavur.weebly.com/uploads/1/3/4/0/134018347/8222206.pdfIn PDF document text
    • https://dunifavopugi.weebly.com/uploads/1/3/5/3/135312205/b1bbb.pdfIn PDF document text
    • https://boxatikavizag.weebly.com/uploads/1/3/4/6/134680825/6349159.pdfIn PDF document text
    • https://kajovagej.weebly.com/uploads/1/3/4/7/134747054/5555390.pdfIn PDF document text
    • https://kazowotamije.weebly.com/uploads/1/3/4/0/134012594/zupipomanosi.pdfIn PDF document text
    • https://xatevixi.weebly.com/uploads/1/3/4/6/134651360/widududiwek-mukunogusim.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/c5igj1Z/rojidati.pdfIn PDF document text
    • https://cdn.sqhk.co/febowozefu/Em9Tgco/15263500000.pdfIn PDF document text
    • https://cdn.sqhk.co/fixosotefe/jhDHgcM/coloring_pages_christmas_stocking.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471514/normal_5fe769cadf52c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416940/normal_5fdf051b2aa27.pdfIn PDF document text
    • https://lokudepapina.weebly.com/uploads/1/3/5/3/135325929/makefativupupu-kulukiwepujuw-vipuxefuka-pojidubewerina.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/517009588.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/zezabopixo.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_off0000d75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75E 5328 bytes
SHA-256: 34f999b87cfb94c11e2ec1f50297c487e338bdca54a7e245598451e7bd32306f
font_01_sfnt_off0000e98f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE98F 10612 bytes
SHA-256: 2b8044e4820620a65d48f643eaddd1e7d8c908cd07cc7b32887e80d5e8ffa76d