Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f7b2aded7b10a73…

MALICIOUS

PDF

89.1 KB Created: 2021-02-07 02:21:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ead6bb4863fe4fa71509d739dc62faef SHA-1: 48266f7a900ee1fac17d6f4e84d1528dbd51b1a8 SHA-256: 1f7b2aded7b10a736fdb50bb4605cac62a5a72288ed0d867c45c1ed7b131cbad
194 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, contains a search query related to lyrics, likely a lure to disguise the malicious intent of redirecting users to a network of potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://bologen.ru/123?utm_term=i+see+fire+lyrics+meaning PDF link annotation
    • http://xemuzaxu.22web.org/wotudekugodaves.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/Hgc21ii/haunted_corn_maze_in_iowa.pdfIn PDF document text
    • https://cdn.sqhk.co/munoforifuso/hhc8BFx/nomufakerimix.pdfIn PDF document text
    • https://pevaluxuduta.weebly.com/uploads/1/3/4/5/134502983/fabutamet.pdfIn PDF document text
    • http://zoompol.xyz/54152517150l4skt.pdfIn PDF document text
    • https://cdn.sqhk.co/rogenujudita/ifhhjan/puxitojuzeji.pdfIn PDF document text
    • http://euroshopmn.space/tevavugimarakanitolax2fdh.pdfIn PDF document text
    • https://mafetoga.weebly.com/uploads/1/3/0/8/130874134/batufume_xirexozigawu_liwokedojo_kifanamizuguwa.pdfIn PDF document text
    • http://table-wait.com/54614369563tla6l.pdfIn PDF document text
    • https://cdn.sqhk.co/sugefixa/qpjgFTH/what_you_eaten_meaning_in_kannada.pdfIn PDF document text
    • https://riwetomawojok.weebly.com/uploads/1/3/4/5/134516188/7dbe1be9ce00701.pdfIn PDF document text
    • https://cdn.sqhk.co/nezerozara/ijhhZia/how_to_make_origami_ninja_stars_easy.pdfIn PDF document text
    • https://cdn.sqhk.co/gisatajofo/Kje9yVp/guess_the_movie_cheats_level_21.pdfIn PDF document text
    • http://blockhcain.host/phtls_8th_edition5c58g.pdfIn PDF document text
    • http://importants.space/62954560264zil03.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sapifux.epizy.com/advantages_and_disadvantages_of_video_games.pdfIn PDF document text
    • http://rigamijuzekup.rf.gd/chennai_express_in_tamil.pdfIn PDF document text
    • http://ziboporo.epizy.com/76066043870.pdfIn PDF document text
    • http://vakisetituli.rf.gd/1571727771.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_off00011989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11989 5240 bytes
SHA-256: 41bfcf38b3a1b85c4568fe20a05891f99f8b7401832e63807822f6bb49e0462f
font_01_sfnt_off00012b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B50 14184 bytes
SHA-256: 32cb4e4ddc93b429d430d4106edd0207aec8757f1e4e0bbcfbee8b4672ba6e28