PDF malware analysis — malicious · d43977ce1ac15d2d

MALICIOUS

PDF

80.5 KB Created: 2021-02-25 22:57:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 4d3dad5177cb648703b7c9d51f61a771 SHA-1: 7ab5eea3de82a0671afbf2b7bc659323114ee45d SHA-256: d43977ce1ac15d2dcd60395e5da1717ed6cf4eaf0e210606204be847cf406a58

96 Risk Score

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. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though heavily obfuscated, appears to contain keywords related to the URL, suggesting a phishing or social engineering lure.

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://jacksth.ru/award?keyword=farewell+to+manzanar+movie+netflix PDF link annotation
- http://zenarajare.22web.org/financial_reports_companies_australia.pdfIn PDF document text
- http://reduslim-italy.site/audi_q7_manualyrgdg.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4460045/normal_5feb9ad929051.pdfIn PDF document text
- http://supfitket.buzz/81883225876ihz0j.pdfIn PDF document text
- http://new-volosi.ru/kerasonuxrce4.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/degisapemifa/publisher_template_brochure_free.pdfIn PDF document text
- http://mugosovexu.epizy.com/blanka_lipiska_chomikuj.pdfIn PDF document text
- https://s3.amazonaws.com/xoguwavosuje/29614078416.pdfIn PDF document text
- https://s3.amazonaws.com/kozibowisenatu/english_vocabulary_words_with_meanings_in_urdu_list_download.pdfIn PDF document text
- http://xinudekewukipi.rf.gd/cub_cadet_lt1045_drive_belt_installation.pdfIn PDF document text
- http://wajodojizofe.epizy.com/momepizofokowo.pdfIn PDF document text
- https://s3.amazonaws.com/forupokisip/audiolab_6000n_user_manual.pdfIn PDF document text
- http://rawozenagi.epizy.com/insert_excel_sheet_link_into_powerpoint.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00010074.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10074	4960 bytes
SHA-256: `17dfc2c042000f44b3c22b83c466f3fcc18890cfc1980fa5b1bb28fce06ad30e`
`font_01_sfnt_off00011164.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11164	10396 bytes
SHA-256: `77db30e92591400e8e0351b3cfe9a256fda3fe2104c1563502455d380cfe048e`

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