Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebb7115b53de8e74…

MALICIOUS

PDF

75.1 KB Created: 2021-02-26 02:28:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 37a697b1a9c568d517f43c47813a2d5e SHA-1: 46dab69ce691743a373ab6725406c7f926afa61f SHA-256: ebb7115b53de8e749173aa6eb31da4528770d1504bed2b1e9ac95471e8e25535
184 Risk Score

Malware Insights

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

The PDF contains embedded URLs that redirect to known malicious infrastructure, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a redirection-based attack, likely leveraging a spearphishing attachment vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/award?keyword=2000+jeep+grand+cherokee+limited+reviews In PDF document text
    • http://nakekizedexu.getenjoyment.net/56856651485.pdfIn PDF document text
    • http://dasaburaxad.22web.org/demon_slayer_anime_episode_guide.pdfIn PDF document text
    • http://jubobusuzamap.22web.org/liftmaster_8365_cost.pdfIn PDF document text
    • http://dorulezebum.sportsontheweb.net/is_dog_man_10_out_yet.pdfIn PDF document text
    • http://zuzorovix.scienceontheweb.net/best_location_for_antenna_amplifier.pdfIn PDF document text
    • http://womenalikumat.22web.org/tojot.pdfIn PDF document text
    • http://fakixigulidol.mywebcommunity.org/how_to_grow_butterhead_lettuce_from_seeds.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459926/normal_601905a8cb5cd.pdfIn PDF document text
    • http://xejopegig.mypressonline.com/does_costco_have_a_blood_pressure_machine.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414687/normal_5fef62afec311.pdfIn PDF document text
    • http://suzamajotibe.mywebcommunity.org/55642652921.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/jotizifime/fuxavowegakurapodesuru.pdfIn PDF document text
    • http://ginowane.onlinewebshop.net/rolajipobapavufugolugox.pdfIn PDF document text
    • http://kofaxafogi.myartsonline.com/what_is_capped_brood.pdfIn PDF document text
    • http://jetelusaxidu.epizy.com/android_emulator_install_play_store.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/makita_router_straight_guide_fence.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/23625320720.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/100_survival_skills.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_off0000e87a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE87A 5956 bytes
SHA-256: c641be667ec15522faea5f91eee80e4360ce3659b18b260112927c591937d8bc
font_01_sfnt_off0000fcb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB1 9972 bytes
SHA-256: 5cedc7587252947cc46b5b320c806f83b0c739a9838e8947bb3f80c1af676555