PDF malware analysis — malicious · f1fb5547f3a1dead

MALICIOUS

PDF

89.5 KB Created: 2021-03-02 11:52:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 330aa6fcb7cca8c3bdf7970632d51da0 SHA-1: d709b85f148d2a71ad4b32a7134a0c590df35018 SHA-256: f1fb5547f3a1dead3abf978a1a1b687db7d175936ce59dfdaf926399a7fac009

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL `https://soxebez.ru/123?utm_term=john+grisham+books+made+into+films` suggests a phishing or social engineering lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI are strong indicators of a malicious document, likely designed to trick users into visiting a compromised site or downloading further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/123?utm_term=john+grisham+books+made+into+films
- http://instasurprise.online/you_heard_what_i_said_in_spanishhmv6r.pdf
- http://jakartapro.xyz/brackets_shortcutspfy5r.pdf
- https://cdn.sqhk.co/xataruzepape/jdfjc4u/stealth_fitness_customer_service_number.pdf
- http://usersonlineguardingsettings.site/916238320798awlh.pdf
- https://cdn.sqhk.co/zanotunuzi/q5phfjj/movie_trivia_questions_game.pdf
- http://ig-copyrightnoticehelp.com/the_7_churches_of_revelation_dvdjvwgh.pdf
- https://cdn.sqhk.co/gutinisiv/evgcpgf/pefozexigetutufegamodiw.pdf
- http://dutov.org/lancet_infectious_diseases_case_report6u8mg.pdf
- http://filfex.ru/gozabubeziwuwujsvpu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/legipalofi/99224405005.pdf
- http://rosajeku.myartsonline.com/zasapokunobi.pdf
- http://bavotuvezomevi.myartsonline.com/economics_of_development_perkins_6th_edition.pdf
- https://s3.amazonaws.com/gedexim/make_me_a_blessing_lyrics.pdf
- https://s3.amazonaws.com/lanaladu/93527103039.pdf
- https://s3.amazonaws.com/lovomijelun/launching_soon_template_psd.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00011114.bin` `c905227a52dea937ba4df7087d6bb7b27ada50448d903a8dd46bbb72e539b8ca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11114	5300 bytes
`font_01_sfnt_off000122e1.bin` `abe7f6a10b0742fe2ba4850d39a9425782e0b04c5b6c9beeb663f88cce5842a8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x122E1	12140 bytes
`font_02_sfnt_off00014af9.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14AF9	4324 bytes

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