Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e00bfd7c105879f…

MALICIOUS

PDF

92.5 KB Created: 2021-03-17 21:15:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: a4ed362a2c81667f85526509d67e3e5c SHA-1: 2e953dc0f4049924f8b710827fee40d191a59705 SHA-256: 9e00bfd7c105879f71abccfb2d85daab14cb704b13ba1624110675eef28ed675
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded URLs, many of which point to disposable domains and are flagged as link farms. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The presence of external URIs suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 5

  • 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.
  • 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://botokaw.ru/award?keyword=business+studies+grade+12+textbook+pdf PDF link annotation
    • http://mamunetosi.iblogger.org/82916274577.pdfIn PDF document text
    • http://usene.xyz/formal_dress_shops_in_nashville3n3cg.pdfIn PDF document text
    • http://stixlife.info/90096765691s0tzm.pdfIn PDF document text
    • http://fomilexavekol.22web.org/pitinatulila.pdfIn PDF document text
    • http://accueilcmb.com/ford_toploader_4_speed_transmission_parts2lwcc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417305/normal_601d33470b1d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475988/normal_602ede8d694d9.pdfIn PDF document text
    • http://circleshtang.xyz/236392492984b8br.pdfIn PDF document text
    • http://komamoj.22web.org/72388817358.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408863/normal_6001c6951cfaa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446017/normal_602f973607a81.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a96990da-dd17-4b11-844c-aba2d588d1b6.filesusr.com/ugd/5e5e7b_b97bf98a09584fa1bc84fa8295a36f44.pdf?index=trueIn PDF document text
    • https://d64d5b41-a66a-4b78-b87f-0feaf8e9cf76.filesusr.com/ugd/cf1aed_2d0ec5ae2d44400dabff9aa3d3d37cd3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gatazeromij/dell_e6410_wifi_driver_windows_7_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/how_to_program_dish_remote_to_new_vizio_tv.pdfIn PDF document text
    • http://larazeratu.epizy.com/rivetiguvebigezedeni.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/74502465119.pdfIn PDF document text
    • https://4b4ea461-5266-411b-8735-d5290551f550.filesusr.com/ugd/7fedcf_01f4b3de84614710ac7067eeebd42613.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/square_numbers_list_1-_100.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/hp_officejet_5740_not_printing_cyan.pdfIn PDF document text
    • https://db244590-af71-4c33-bd6e-2f8f55f31281.filesusr.com/ugd/fdab61_989f639f0bf94a539c9a7424b6baa2c0.pdf?index=trueIn PDF document text
    • http://kusikegu.rf.gd/zixupawedexaberez.pdfIn PDF document text
    • https://0c2a99dd-71fd-4a0d-b96f-672cfa785c21.filesusr.com/ugd/515c54_1b0e321b03284960a280b14de3328bb5.pdf?index=trueIn PDF document text
    • https://bf6af823-cb0d-4ee8-9d5b-4f0b1de5ed24.filesusr.com/ugd/9eb187_d5e3a8d754634fe488ff182b2c5cb66d.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012be1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BE1 5684 bytes
SHA-256: f0f35a3e261fa8c7b6ea80f618fef44332542d87d71d235bd78d84650e2130a1
font_01_sfnt_off00013f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F4F 11220 bytes
SHA-256: 96816675774a174067cfe3173a86597e870f14c2f3bf7a3b84f209349de9ed28

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