Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc5ed2029882e1ee…

MALICIOUS

PDF

71.4 KB Created: 2020-11-14 21:04:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4e49adf9b22fe90b11038c644642cc8b SHA-1: ef08c209d8472e11591154ead22f8678c0631835 SHA-256: cc5ed2029882e1eead41a3a7e5ee0d2aa2c7f9ccd6770d334d51215ff07fbd6e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Man vs beast 2'. No scripts were extracted, but the presence of external URIs and the overall detection profile suggest a phishing or malware distribution attempt.

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://traffnew.ru/123?utm_term=man+vs+beast+2 PDF link annotation
    • https://maxafusisiwesu.weebly.com/uploads/1/3/4/6/134688878/3d5c114.pdfIn PDF document text
    • https://gipusarele.weebly.com/uploads/1/3/4/7/134708700/voxuk-fekawiguzodegax-mafunapaw-rizavigajuv.pdfIn PDF document text
    • https://mokitigek.weebly.com/uploads/1/3/1/6/131606839/kogovelawov.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/6597744.pdfIn PDF document text
    • https://letitunonagafi.weebly.com/uploads/1/3/4/4/134494227/danuga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gupuso/difference_between_nationalism_and_patriotism.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/mapa_departamento_de_santander_colombia.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/87555977350.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/murazibejirabevuvuzufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f70f257-849a-499d-b5c2-9cef34793a57/musosimifuzob.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/polymerase_chain_reaction_review.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/gretna_middle_school_home.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20481624-967d-479c-b1a7-8fff8a2138fa/niwan.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBF 4516 bytes
SHA-256: 51b7b1b7bc8d0c20ace5b452c4048ab5f394ab0ee13a1713066e5f31b2e7734d
font_01_sfnt_off0000de24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE24 10744 bytes
SHA-256: 4cd43b05056a8e609fe4bc0c44746b9319a2d595e4aa2371c49eebc1b4a3b64b
font_02_sfnt_off00010316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10316 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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