Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfe0b0a31915fdb3…

MALICIOUS

PDF

86.7 KB Created: 2021-04-03 04:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 20dbe954caa2cc29a252d9bfc6fd7145 SHA-1: 2135cf6543a95438107a5e042f32bb9b48674f3d SHA-256: dfe0b0a31915fdb34744da3600b0c65843509ec08eb9db311aec76ac868fc1f9
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. Although no scripts were explicitly extracted, the presence of an external URI suggests an attempt to download or redirect to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resalured.ru/123?utm_term=medical+terminology+abbreviations+cheat+sheet PDF link annotation
    • http://tumuduwaju.mypressonline.com/vitamin_a_deficiency_treatment.pdfIn PDF document text
    • http://sayseedokg.com/gixupw947q.pdfIn PDF document text
    • http://segway-wheelchair.ru/30108525486q1t1h.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/pesetufavo/19960577443.pdfIn PDF document text
    • https://s3.amazonaws.com/lawakux/the_strongest_love_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/goperarezib.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/71580255891.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/google_docs_spreadsheets_scripts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1044c317-ce5b-45bd-abb2-ccbdb9a64c0d/64612466184.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef2bab5c-0f20-46a8-bcd4-92dc2a636361/graphic_design_internship_jobs_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/30140367418.pdfIn PDF document text
    • http://tudixuzaw.onlinewebshop.net/captivate_book_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/letter_of_intent_residency_example_reddit.pdfIn PDF document text
    • http://xakazasaravi.onlinewebshop.net/23869707235.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/kajozomavixivepotijosaf.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/coolrom_safe_to.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/56706886816.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/introduction_to_composite_materials.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/barcode_reader_application.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d90c3a85-08bb-493f-a5e8-e70aae4823ae/tasixufirurusixeri.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/vshare_apk_file.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_off00011572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11572 5660 bytes
SHA-256: bc894a124f6680a930fb9063e17435704ef2db0facfdf83846deec7bb1b5c704
font_01_sfnt_off00012897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12897 10840 bytes
SHA-256: 8795b1509b3b6004cf99b8ddeb23125027976839a105ffdf7fe334abd6e7d55f

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