Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dccdc3393e62db4…

MALICIOUS

PDF

71.2 KB Created: 2021-09-26 01:54:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: b20034c0c2f7f8e0185da2f81546ba4c SHA-1: da5735de407c7726648d2cef48d7aa745db21c3a SHA-256: 1dccdc3393e62db4afa8424a768b532bac839dd3f207fc8ba8c63bb49bf4d18e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://safaraval.com/basefile/safaravalcom/files/lupenisofebesup.pdf In PDF document text
    • http://synergyproperty.com/images/files/midixifibuw.pdfIn PDF document text
    • https://serpavenger.com/ckfinder/userfiles/files/38009041448.pdfIn PDF document text
    • http://stavo-bazar.cz/userfiles/file/zabuxotijuwe.pdfIn PDF document text
    • https://mr-alian.com/upload/ckfinder/files/53619941035.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137451117307---gunenidavow.pdfIn PDF document text
    • http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/kipetumidaranezu.pdfIn PDF document text
    • http://ohmamakitchen.com/uploads/files/neganixobodexedunizagiku.pdfIn PDF document text
    • http://yasaitogo.com/uploads/files/18972792630.pdfIn PDF document text
    • https://sanmuabancongty.vn/images/content/files/gizuwedorobijemifuse.pdfIn PDF document text
    • http://trunglam.vn/uploads/userfiles/file/5978635182.pdfIn PDF document text
    • http://kibunajcc.com/ckfinder/userfiles/files/94529081591.pdfIn PDF document text
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/161335fd8e76b3---webumozusovorute.pdfIn PDF document text
    • http://bpabv.nl/uploadfiles/file/8479747352.pdfIn PDF document text
    • https://vietnam-pump.com/userfiles/file/famusafufepotixo.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614f9becd4c57---4936648209.pdfIn PDF document text
    • http://watchimport.eu/userfiles/file/16366841878.pdfIn PDF document text
    • http://gd-weimi.com/upfolder/e/files/20210920061204.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614521acdd195---tixanatepumepugimuw.pdfIn PDF document text
    • https://handientu.vn/userfiles/file/94013790354.pdfIn PDF document text
    • http://career-id.org/ckfinder/userfiles/files/58142317650.pdfIn PDF document text
    • https://adikkeempat.com/contents/files/fakoxovubuw.pdfIn PDF document text
    • http://premiercontractinginc.com/files/file/15596808474.pdfIn PDF document text
    • http://tinhdauvietnam.vn/upload/files/99100695462.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=mod+theme+storePDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b1cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1CF 10100 bytes
SHA-256: 0d44feb275f25b3be4842b86c03cbcf1c51b750b5853f009d64564f26d089b58
font_01_sfnt_off0000c853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC853 18836 bytes
SHA-256: 07bc88295fb6ca9203e8f8c9fb8d7befbbc44d25aba6bd2984da9465803f00d1
font_02_sfnt_off0000f7a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1