Malicious PDF — malware analysis report

Static analysis result for SHA-256 65c4fbb5271ea17c…

MALICIOUS

PDF

78.7 KB Created: 2021-03-06 07:37:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 60fc3ed136b84c2614f622b22e63edd4 SHA-1: 9bead681b7e644dbd26c3175015d05b5f97050d5 SHA-256: 65c4fbb5271ea17c057c726fbb28ab64c222341a1e5091b8c42c9a053a29586d
126 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or scam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • 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://xezojetit.ru/wix?keyword=ihip+sound+pods+how+to+connect+both PDF link annotation
    • https://cdn.sqhk.co/raxizeki/gdgjgcS/juegos_retro_nintendo_switch.pdfIn PDF document text
    • https://cdn.sqhk.co/riwutosax/haZdgio/brain_out_can_you_pass_it_game_download.pdfIn PDF document text
    • http://lodazumutedine.iblogger.org/51233340113.pdfIn PDF document text
    • http://safodimim.iblogger.org/zalotuzewogulo.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/Iic8gjN/15528511820.pdfIn PDF document text
    • http://zumikavu.22web.org/xudiluvepabejatenufeto.pdfIn PDF document text
    • https://cdn.sqhk.co/tozimozeka/hakRJij/crossing_jordan_crossover_episodes.pdfIn PDF document text
    • http://korezafegedim.22web.org/australian_bird_calls.pdfIn PDF document text
    • https://cdn.sqhk.co/gederanew/jgicjgK/amc_24_hampton_va_movie_times.pdfIn PDF document text
    • http://nafesotarun.22web.org/nemuviliwagaf.pdfIn PDF document text
    • https://cdn.sqhk.co/niserutom/gnYAoh1/ct_lottery_play_4_history.pdfIn PDF document text
    • https://cdn.sqhk.co/reretukida/hgjbj3j/63077457187.pdfIn PDF document text
    • https://cdn.sqhk.co/gawarebadal/3jjibLK/run_rhody_race_results.pdfIn PDF document text
    • https://cdn.sqhk.co/bifugudawesu/dgejhbP/free_resume_templates_2019.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/ruzaganog/synaptic_package_manager_install_ed_package.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5b75b27-5afb-49bf-a069-43dbfbe91db4/95509852591.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16c9d269-ea72-46df-b613-a36658466e58/artemis_fowl_books_in_order.pdfIn PDF document text
    • http://mexowotevofo.rf.gd/bifavosiwa.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/what_are_some_debate_topics_for_middle_school.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/69486912257.pdfIn PDF document text
    • http://levolavajoji.epizy.com/winakixigisuvanamisabom.pdfIn PDF document text
    • http://figabubif.rf.gd/vsco_full_pack_mod_apk_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/zajixibixoxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b14749c-4c74-4f33-8003-5756593a132f/hello_adele_karaoke_download.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_off0000f8d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D2 4992 bytes
SHA-256: 27ddb6b7c58748a3797c01cc9ee8c84468225572cf8f7c1ce49f8bd956a86240
font_01_sfnt_off000109dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109DC 10412 bytes
SHA-256: 577073c727ca1841b5b87ff5d6d1604e2c6f997c2df42dcba1855da1cad2f969

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