Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a336af7b43a8f7e…

MALICIOUS

PDF

68.9 KB Created: 2021-02-06 11:42:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ec87549738b8dfed42c42bc06ea22e58 SHA-1: fc6f2ca3ff607c482c60f13a8b4efa779d5c869b SHA-256: 7a336af7b43a8f7eba972484c54c2026202973b4808def294af00530277f4ac6
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://leonvi.ru/wb?keyword=silicone%20wristband%20mockup%20free PDF link annotation
    • http://nonretloli.site/test_bender_adultos7300k.pdfIn PDF document text
    • https://cdn.sqhk.co/kedezoge/j8sAhg8/tiny_village_minecraft_mod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402932/normal_5fcc95d80764e.pdfIn PDF document text
    • http://help-verifiedbadgecenter.com/752616345810vk8k.pdfIn PDF document text
    • http://kedusigodozop.22web.org/new_chutkule_photo_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393754/normal_5fdffe8398291.pdfIn PDF document text
    • https://cdn.sqhk.co/monasomeb/idhigfB/munagoganib.pdfIn PDF document text
    • http://load-bcp.com/82663286659qqecc.pdfIn PDF document text
    • http://store50off.info/calculus_functions_domain_and_rangeuy5g7.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/jjijehh/service_project_ideas_for_high_school_clubs.pdfIn PDF document text
    • http://igclienteam.com/fibivuwevixarupibamoripipzkfy.pdfIn PDF document text
    • http://copyrightsupporthelpcenter.com/autodwg_to_dwg_converter_2020_serial_numberitu69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489981/normal_60052a36622a5.pdfIn PDF document text
    • http://strita.space/prisoner_of_zenda_free_downloadi4996.pdfIn PDF document text
    • http://blockingscenery.com/dr_gene_scott_teachingnme11.pdfIn PDF document text
    • https://cdn.sqhk.co/kamozipu/d0Fjbij/nofogizita.pdfIn PDF document text
    • http://idealicaitalia-official.site/9260215256889zdz.pdfIn PDF document text
    • http://islemleriniz.org/manapuzavixagafipivabo9btgh.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_off0000cf4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF4D 5700 bytes
SHA-256: 7b863882301c038fe721486bce5f5d6360fd5dd23a0e1d9190fbd6e9b18b03e0
font_01_sfnt_off0000e2b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B0 10596 bytes
SHA-256: eb962f2cdf30c2ce1d719725e25c5b1c1b40a3d2644ec25a2ae70344b24e300c