Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0428d2e35e6545b…

MALICIOUS

PDF

71.7 KB Created: 2021-03-05 20:40:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 6ad740e36710dc70dcb8707ed51689c3 SHA-1: 5a67522457c50cfaefab3b45ae8c1f1440d2cd82 SHA-256: c0428d2e35e6545bfc06d35627bac04fc04773a021ccb16e91d16d70311aba87
156 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier with high confidence. It contains a large number of external links, many pointing to PDF files, suggesting a link farm or redirection mechanism. The primary URL, https://xezojetit.ru/wix?keyword=ford+tractor+manuals+free+download, indicates a lure related to tractor manuals to entice users to click on malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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.
  • 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://xezojetit.ru/wix?keyword=ford+tractor+manuals+free+download PDF link annotation
    • http://zekifafeter.scienceontheweb.net/fedex_customer_service_hours_usa.pdfIn PDF document text
    • https://vexefanakaxaki.weebly.com/uploads/1/3/4/8/134871487/fatim_dotafusetuwa_woripeladu_wovalelozesis.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408004/normal_60005cf66306e.pdfIn PDF document text
    • https://bogekivusuwi.weebly.com/uploads/1/3/4/6/134604255/6922406.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413456/normal_6029a826d59c2.pdfIn PDF document text
    • https://fesoviso.weebly.com/uploads/1/3/4/7/134710514/dirisajekigodi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480580/normal_5fe4eaf82f4e1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417659/normal_5ff87a8567ae1.pdfIn PDF document text
    • https://baxelawinojiw.weebly.com/uploads/1/3/4/3/134333718/a84d8cc295.pdfIn PDF document text
    • http://jemulobapamiwu.mywebcommunity.org/32963183585.pdfIn PDF document text
    • http://doxedisipi.scienceontheweb.net/what_are_the_two_types_of_semiconductor_mcq.pdfIn PDF document text
    • http://lebizifijafaxim.medianewsonline.com/43181016168.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495265/normal_5ffa9ad7258a1.pdfIn PDF document text
    • http://ewwe.space/intercultural_communication_globalization_and_social_justice_2nd_edition8e8gv.pdfIn PDF document text
    • https://xixemoxutosiseg.weebly.com/uploads/1/3/4/4/134473276/fb75f1ae9.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/1Bhf2y9/xcode_swift_audiotoolbox.pdfIn PDF document text
    • https://serirufudo.weebly.com/uploads/1/3/4/7/134712976/961189.pdfIn PDF document text
    • https://cdn.sqhk.co/fepogosu/ibie1hg/lose_belly_fat_workout_plan_at_home.pdfIn PDF document text
    • http://look-hotel.com/57978075550na3zl.pdfIn PDF document text
    • https://verevivomilob.weebly.com/uploads/1/3/0/7/130738769/383063.pdfIn PDF document text
    • https://foxejakepi.weebly.com/uploads/1/3/0/8/130874264/06a86.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_off0000dc4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4C 5212 bytes
SHA-256: 03dcb22debef2d13e290eba219eb2422efc3abf5cc12451399f9fe2a7a89f1f1
font_01_sfnt_off0000ee02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE02 10212 bytes
SHA-256: 9e7c53872aa62b4eb039ab4959aae33898ddffe908d9ba142ca81a1513e23f12

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