Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d9fddd7f6af31d6…

MALICIOUS

PDF

68.4 KB Created: 2021-01-29 18:12:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fc11ef9e52f3d8457ffadd4a40187dbd SHA-1: 47c46eccb94ab91d29522a7e6cafbba02e0d9990 SHA-256: 1d9fddd7f6af31d6407c454f9bd982a4ad0dfe1f9ad48c236f28be95809854f9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/123?utm_term=bf4+emblems+non+premium PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421939/normal_600c72104ddc6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487200/normal_5fca03a416b46.pdfIn PDF document text
    • https://nalivugubogepa.weebly.com/uploads/1/3/0/9/130969323/setaviwovenuro_jemefa_finutirokeva.pdfIn PDF document text
    • https://cdn.sqhk.co/pasojixaju/lheoC16/pocket_mine_3_friend_codes.pdfIn PDF document text
    • https://tevupiju.weebly.com/uploads/1/3/4/8/134865653/a6f6238c5aed.pdfIn PDF document text
    • https://sokupime.weebly.com/uploads/1/3/3/9/133999930/gelidiguf_lavemijetomu.pdfIn PDF document text
    • https://dixamagajo.weebly.com/uploads/1/3/4/6/134652312/webirexowotapilut.pdfIn PDF document text
    • https://rukuzidin.weebly.com/uploads/1/3/4/5/134517246/177f89.pdfIn PDF document text
    • http://xevidome.iblogger.org/step_down_transformer_single_line_diagram.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/hfhaggb/kosug.pdfIn PDF document text
    • https://cdn.sqhk.co/gisanewat/ffQidhb/4850787413.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/biwubeleba/86142956283.pdfIn PDF document text
    • http://retuguru.epizy.com/gonem.pdfIn PDF document text
    • http://suvapik.epizy.com/mg_buster_gundam_color_guide.pdfIn PDF document text
    • http://rejefuwozumij.rf.gd/brunswick_secondary_college_uniform_policy.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_off0000cd92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD92 5116 bytes
SHA-256: 60fb7e002811062faa003860762d8e6a9c8fa354df33be416eba906dc9407ea2
font_01_sfnt_off0000dee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE6 11148 bytes
SHA-256: f35168e4769569670ab7c362736982054b10d4d3518ff8cdfcb1aa2cb53cebeb