Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02a1dfd841cc7ff…

MALICIOUS

PDF

72.1 KB Created: 2021-02-20 17:23:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ace88f5c120c80cc9a823be7c2d69779 SHA-1: 82340696b166dbd09128f70a1fd08329f710828b SHA-256: e02a1dfd841cc7ffb7c7ede1b3c52f055f1e6681435a67499deeb6715ac2a008
186 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are hosted on disposable domains or link farms, indicating a likely SEO spam or phishing campaign. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the presence of numerous URLs points towards an attempt to redirect users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/strik?utm_term=what+to+do+when+your+dryer+is+squeaking PDF link annotation
    • https://cdn.sqhk.co/wobuwozavenu/tihojej/blossom_blast_saga_online_game.pdfIn PDF document text
    • https://cdn.sqhk.co/gozigawefo/gf0hhgj/75408496493.pdfIn PDF document text
    • https://lafadulow.weebly.com/uploads/1/3/4/5/134591129/segon.pdfIn PDF document text
    • http://svoytrylend.xyz/767506078353ooot.pdfIn PDF document text
    • http://easterthjg.com/62357853069xx93v.pdfIn PDF document text
    • http://amin-ukraine.net/94169277685cnmk5.pdfIn PDF document text
    • http://espaceclient-cmb.com/hold_me_for_a_while_songtc8sg.pdfIn PDF document text
    • http://winoorama.space/hunt_showdown_spider_guidepe42u.pdfIn PDF document text
    • https://cdn.sqhk.co/maxevurux/Rgh1jeI/mindshare_dublin_careers.pdfIn PDF document text
    • https://tusigidufamem.weebly.com/uploads/1/3/5/3/135350313/fudakagijujaraxege.pdfIn PDF document text
    • https://cdn.sqhk.co/bapuwanuvadi/eidghgj/23944164405.pdfIn PDF document text
    • https://cdn.sqhk.co/gukitane/mExjjje/world_car_racing_championship.pdfIn PDF document text
    • https://cdn.sqhk.co/xezojutatow/iitnjgh/name_for_kikar_tree.pdfIn PDF document text
    • http://cosmostil.top/modern_sofa_set_designs_for_living_room03h3v.pdfIn PDF document text
    • https://cdn.sqhk.co/jetirivotu/Bxjicjb/pase_elite_gratis_free_fire_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sulonofanez.rf.gd/android_messages_update_colors.pdfIn PDF document text
    • http://metukukerog.epizy.com/bollywood_full_hd_video_song_1080p.pdfIn PDF document text
    • http://radujexoxetapil.epizy.com/beaded_bracelet_patterns.pdfIn PDF document text
    • http://wepilige.epizy.com/1971428758.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.

FilenameKindSourceSize
font_00_sfnt_off0000dc4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4A 5452 bytes
SHA-256: bf9c6ad12bbbaaa021cc70d96d0b84352d1386fc6830db2e4875b2b52b483b22
font_01_sfnt_off0000eee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE5 10456 bytes
SHA-256: e01015ee06469e6d69c20188a6e1670e5db3f4a11f64b327f3042eecc7a46564

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