PDF malware analysis — malicious · 61d0aee1196d1f17

MALICIOUS

PDF

71.6 KB Created: 2021-03-28 10:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c0a737b911edcfa7dabdfc2ed0431146 SHA-1: 1730c1ab027882ce3bcb285a7a51c9091c2a8367 SHA-256: 61d0aee1196d1f17cbc42f6e34c99ee35a6e0622be7ab27e322828030ca0e0a5

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an external URI pointing to 'lozipotod.ru', which is likely a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful content, aligning with spearphishing tactics.

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://lozipotod.ru/123?utm_term=grade+1+math+worksheets+online
- http://rewokujow.scienceontheweb.net/pesca_artesanal_definicion.pdf
- https://cdn.sqhk.co/zoluxoni/djjieie/5672414831.pdf
- https://cdn.sqhk.co/kekotenonaxu/ggPdb8g/zombie_break_skins_4_minecraft_pe.pdf
- http://gunekagafa.22web.org/mulipovunakebewiwozirogef.pdf
- http://neridipazaf.22web.org/nikon_dx_af-s_nikkor_55-200mm_f_4-5.6.pdf
- https://cdn.sqhk.co/tuwovado/djdwXmv/sound_dampening_sheets.pdf
- http://mezogevap.mypressonline.com/thiruvalluvar_university_b._com_syllabus_2020.pdf
- https://cdn.sqhk.co/vetukalujir/uidhjhg/japowiva.pdf
- https://cdn.sqhk.co/tusufawenu/T6gcyNy/wugubudipijibosu.pdf
- http://najapizarut.22web.org/nora_roberts_movies_2019.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/jazofi/14152680408.pdf
- https://s3.amazonaws.com/vigevot/is_rapid_covid_test_free_in_nyc.pdf
- https://s3.amazonaws.com/pevarijidasalop/gowegotaj.pdf
- https://s3.amazonaws.com/dofufiri/73557481049.pdf
- https://s3.amazonaws.com/tumasun/82066111015.pdf
- https://s3.amazonaws.com/fifomi/keurig_instructions_mini.pdf
- https://s3.amazonaws.com/zafijukopa/website_quotation_template_free.pdf
- https://s3.amazonaws.com/mejados/51258127404.pdf
- https://s3.amazonaws.com/gifiz/67614753595.pdf
- https://s3.amazonaws.com/teximikamukubo/zidexawuvege.pdf
- http://sikegopivizegaw.epizy.com/14771194392.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dc3f.bin` `e4c9a59d2dbf50438e768fa98bcc53fdb57b1dd02b2a957463abdf1feddecf42`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC3F	5304 bytes
`font_01_sfnt_off0000ee32.bin` `2909571b2408efb2e48fb1b88057605b94fc0c5a6775214deab81d6bf3830932`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE32	10080 bytes

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