Malicious PDF — malware analysis report

Static analysis result for SHA-256 02b7c40422ab567f…

MALICIOUS

PDF

71.9 KB Created: 2021-02-25 14:32:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 4491341ee8916506b44d88c1af0d8e0b SHA-1: 6b90cd13962b42204e6e393587956a84fd45968d SHA-256: 02b7c40422ab567fb556f2f8d922413c0e6e4336d69d14e6d083c0fdbc81a6dc
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://bologen.ru/award?keyword=explain+vygotsky%2527s+zone+of+proximal+development PDF link annotation
    • https://cdn.sqhk.co/pufuxogife/K74Yhi8/surviv._io_aimbot_hacks.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/heSgid5/32223275359.pdfIn PDF document text
    • https://fexegidonowagi.weebly.com/uploads/1/3/5/3/135325594/8cd5c2ddbec73b.pdfIn PDF document text
    • https://cdn.sqhk.co/xiruregexibe/2hgiejh/ruxogizekoviwarunabepido.pdfIn PDF document text
    • https://cdn.sqhk.co/nitagalut/hdfljcQ/35013985375.pdfIn PDF document text
    • https://ziluxokoker.weebly.com/uploads/1/3/4/3/134392919/5261145.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/aJrgieF/3151239070.pdfIn PDF document text
    • https://tifimiwarefimi.weebly.com/uploads/1/3/4/8/134895051/pozete-togesafaz-fadax-naxigot.pdfIn PDF document text
    • https://texoxarisozitew.weebly.com/uploads/1/3/0/9/130969357/143997.pdfIn PDF document text
    • https://cdn.sqhk.co/balaragu/XULiiii/92081941741.pdfIn PDF document text
    • https://luvodufugatese.weebly.com/uploads/1/3/4/8/134893210/wamesevaw.pdfIn PDF document text
    • https://tadeliganunuzax.weebly.com/uploads/1/3/0/9/130969808/vudolimikowej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://budakokubogomax.rf.gd/apprendre_le_portugais_bresilien.pdfIn PDF document text
    • http://zepedijuva.epizy.com/44582353166.pdfIn PDF document text
    • http://notavopanugatog.epizy.com/32087563604.pdfIn PDF document text
    • http://vulebirawesajo.rf.gd/gisokak.pdfIn PDF document text
    • http://zivomunigewelo.rf.gd/xejivedod.pdfIn PDF document text
    • http://jetetekeputesi.epizy.com/chicago_fire_5_temporada_dublado_mega.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_off0000dc50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC50 5696 bytes
SHA-256: 8e8be9e600ed1c04bee7c28f37417b6aa20f926ea4f4fba5e91fece78ce8efa1
font_01_sfnt_off0000efcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCF 10076 bytes
SHA-256: 65a2b855f84794acadfb48698136841873bee99158d1424f5bb15848f0ac4e3a

Open this report in the interactive analyzer, or submit your own file for analysis.