Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad14f172f6bd45f…

MALICIOUS

PDF

76.4 KB Created: 2021-03-09 00:27:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 1e1e4d56466931f888b03130323f40ea SHA-1: d68c53a98b8a8fb1f1ac67f9b7deba0c737f2331 SHA-256: 9ad14f172f6bd45f556329728fe8b29dadf91cdf7fbf602351aae7a904dfabda
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI heuristic suggest it's designed to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dugedepap.ru/award?keyword=rfid+attendance+system+project+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369309/normal_601588eb650dd.pdfIn PDF document text
    • https://cdn.sqhk.co/fudamozomeb/7hh5kTp/cut_the_strings_au.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467979/normal_5fe2a9891a4ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370066/normal_601992572cbd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494165/normal_602761b6aa073.pdfIn PDF document text
    • https://cdn.sqhk.co/wajerewuwer/Qsg5jiz/64158235585.pdfIn PDF document text
    • https://cdn.sqhk.co/tabakotodi/fgcjepi/22441352402.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481062/normal_6030773e262e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373769/normal_601d4b2280f14.pdfIn PDF document text
    • https://cdn.sqhk.co/fakineduxafe/hjgggBR/tifeforuwalidamewafowowu.pdfIn PDF document text
    • https://cdn.sqhk.co/bibobovezave/zligjfq/ruzebamaruzo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478926/normal_603508e770a37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378599/normal_600d8784864d7.pdfIn PDF document text
    • https://cdn.sqhk.co/sowanigog/2o1mSji/world_top_mobile_games_download.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/pegek/18202150.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7e60603-2c22-4953-b0d2-49bd90443c34/60114132531.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d7f9756-5893-4581-974a-c47566653c19/rifupafosugivoxeva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9efb8a72-78a9-4457-80ab-4440f00d026b/wd_my_cloud_mirror_default_admin_password.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/269cfff4-4819-43b2-9c48-0c2232f9414f/82350483094.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/5e_dm_screen.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_off0000ec24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC24 5456 bytes
SHA-256: adc2c83079e22dbfbb8dc40e58a14bb09815e931e15d46fa4814c553b2f3f94f
font_01_sfnt_off0000feb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB1 10976 bytes
SHA-256: 365e07d6adcffa83cc34e3289887da8242ede13ed11516809e2779133637cb14

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