Malicious PDF — malware analysis report

Static analysis result for SHA-256 79e0e000f509c69b…

MALICIOUS

PDF

84.7 KB Created: 2021-02-10 21:43:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 611a684b185368e8c131cca640896d6b SHA-1: 3e65fa932f8752f6f6b49bbe38085db24fc91d19 SHA-256: 79e0e000f509c69bc87b625abb59b242d5b37568ff6c0b097e25e008f9c7e564
226 Risk Score

Malware Insights

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

The PDF contains numerous external links to suspicious domains, indicating a link farm or phishing lure. Heuristics like 'PDF_SEO_LINK_FARM' and 'PDF_SUSPICIOUS_LINK_LURE' strongly suggest malicious intent. The ClamAV detection and ML classifier further confirm the malicious nature, pointing towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://jottigo.ru/123?utm_term=delta+sigma+theta+letter+of+recommendation+example PDF link annotation
    • http://mscredit.info/music_downloader_free_mp3_downloadfqkni.pdfIn PDF document text
    • https://jadekida.weebly.com/uploads/1/3/4/3/134349878/905771.pdfIn PDF document text
    • http://slampochka.ru/batman_arkham_city_ps3_pt_br8xfb4.pdfIn PDF document text
    • https://pexivepod.weebly.com/uploads/1/3/5/3/135346377/8854761.pdfIn PDF document text
    • https://pazopoxe.weebly.com/uploads/1/3/5/2/135293382/tijajexa.pdfIn PDF document text
    • https://cdn.sqhk.co/wazofovam/HIjjjeT/pottery_logan_square.pdfIn PDF document text
    • https://jepifobowokeba.weebly.com/uploads/1/3/0/7/130776363/rujelolusoraf.pdfIn PDF document text
    • http://about-igsupport.com/astro_a50_gen_3_manual5m9qk.pdfIn PDF document text
    • https://cdn.sqhk.co/vexedobasof/fuhdid4/kozedozorupojikizupavo.pdfIn PDF document text
    • http://fresh-ita.fun/barcode_scanner_app_for_android_free6x8ex.pdfIn PDF document text
    • https://limofagis.weebly.com/uploads/1/3/4/6/134640762/bobigiparis-luvubiveku.pdfIn PDF document text
    • https://vunozeguwogiwe.weebly.com/uploads/1/3/4/7/134745761/rogejota-xukelakonurasun.pdfIn PDF document text
    • http://easy-money-cash.space/sql_queries_for_etl_testing42xs3.pdfIn PDF document text
    • http://form-lnstagramverifiedbadges.com/corel_draw_x5_tutorials_in_tamil4v25j.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/jjcgiKU/affirmative_action_percentage.pdfIn PDF document text
    • http://unityfree.xyz/time_traveler_roller_coaster_off_ridema8bk.pdfIn PDF document text
    • http://onlyforyou.space/cognitive_psychology_ulric_neissers1q26.pdfIn PDF document text
    • http://lnstagram-support.live/bar_ice_cream_drops_barssap6q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00010ce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CE3 5636 bytes
SHA-256: 4897d4e8079278edb92bdade44bd2a78f27fa6e6bf462ea41295eb10bf647acc
font_01_sfnt_off00011ff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FF5 10896 bytes
SHA-256: 99b4e71f47cc50c752d325fad68a2ca319d05b5349aa3017f5cb1eddb378f3f6

Open this report in the interactive analyzer, or submit your own file for analysis.