PDF malware analysis — malicious · 269303296ac99b57

MALICIOUS

PDF

81.3 KB Created: 2021-01-03 15:49:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: f90de8377d3481676adceea6517fd648 SHA-1: d5adc11eb7b9204a9ff4afca15579db74fba6c0f SHA-256: 269303296ac99b57433174dd13f61bc9d050227882669850d81313dddbd99778

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://trafficel.ru/123?utm_term=what+do+good+readers+do+poster', suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to trick users into navigating to a harmful site.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://trafficel.ru/123?utm_term=what+do+good+readers+do+poster PDF link annotation
- https://cdn.sqhk.co/kisunika/WB7xugi/luxates.pdfIn PDF document text
- https://cdn.sqhk.co/fuwufupi/bPgeYij/thrift_books_online_australia.pdfIn PDF document text
- https://cdn.sqhk.co/pomiwuximu/IjaJ3gd/football_2020_season_covid_names.pdfIn PDF document text
- https://cdn.sqhk.co/sorubajuzoxe/06Fq7gw/collin_county_detention_officer_uniform.pdfIn PDF document text
- https://cdn.sqhk.co/podadoxafa/ScaD9J3/coloring_coloring_pages_to_print_for_adults.pdfIn PDF document text
- https://cdn.sqhk.co/tevotapomow/9hcggig/superhero_maker_2._5.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/fotojipifuzitul/gobaxafufaban.pdfIn PDF document text
- https://s3.amazonaws.com/nisoxow/getizukuxulizepeteji.pdfIn PDF document text
- https://s3.amazonaws.com/kizugokofo/kisafaxizetapugut.pdfIn PDF document text
- https://s3.amazonaws.com/ronatiduzoxij/accomplishment_report_in_elementary_math.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_off000102bc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x102BC	5200 bytes
SHA-256: `bbcfebf188986e969754275dba6a1096981a5faf582b75403860d1725a941967`
`font_01_sfnt_off00011476.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11476	10588 bytes
SHA-256: `b5c007dd9be57e7bf3caf4adb3af7fb46e146cf48d58a58e18cb95af8562de67`

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