Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc405c9b71924bc6…

MALICIOUS

PDF

83.9 KB Created: 2021-01-25 14:02:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6fc887060cb30b105de8d28bc84f190f SHA-1: 78bc442bbfe1cca3440917fb77c0aced58f8114f SHA-256: fc405c9b71924bc6d205b662dbacf543c6b4beb0c8793f6e80174e94e624f32d
196 Risk Score

Malware Insights

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

This PDF document contains numerous external links, many of which point to a link farm hosted on weebly.com, suggesting a phishing or malware distribution scheme. The primary redirector URL, 'https://traffset.ru/aws?utm_term=descargar+captain+tsubasa+zero+apk', indicates a lure for downloading software, likely malicious. The presence of multiple PDF link farms and a redirector strongly suggests an attempt to distribute malware or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://traffset.ru/aws?utm_term=descargar+captain+tsubasa+zero+apk PDF link annotation
    • https://modizotu.weebly.com/uploads/1/3/2/7/132740501/838093.pdfIn PDF document text
    • https://visameme.weebly.com/uploads/1/3/1/6/131636817/sewikuk.pdfIn PDF document text
    • https://kogevinipuban.weebly.com/uploads/1/3/4/5/134514077/fc5ced05.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368244/normal_5ff29c38554d0.pdfIn PDF document text
    • https://fupopafesuz.weebly.com/uploads/1/3/4/4/134443157/89bdc204604e9fe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451737/normal_5fcf2d935347b.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/ijeigji/piano_tiles_3_mod_apk_vip.pdfIn PDF document text
    • https://cdn.sqhk.co/kapideto/gfjhiih/jikoxera.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/YehcHvE/world_conqueror_2_mod_apk_free_download.pdfIn PDF document text
    • https://penosemoboz.weebly.com/uploads/1/3/2/3/132302809/3145033.pdfIn PDF document text
    • https://nuvisinuxaxo.weebly.com/uploads/1/3/1/3/131383681/58d972.pdfIn PDF document text
    • https://cdn.sqhk.co/gukovafax/bM8uVjf/76694539751.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419235/normal_6000ef90c2926.pdfIn PDF document text
    • https://cdn.sqhk.co/pamezuravuno/jcICuhd/underrated_kpop_girl_groups_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/xijuxosisomuna/fifiresogofolekemet.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/47762873296.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/report_animal_abuse_london_ontario.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/delta_state_binaural_beats.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/10401334526.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/job_interview_questions_and_answers_in_spanish.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/beech_bonanza_v35b_performance.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAC 5320 bytes
SHA-256: 052e464746e0d89224171bf32bdbe60a7c7283a67a8ab7ca820659028fbbc4e0
font_01_sfnt_off000101e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101E7 13340 bytes
SHA-256: 4e38ea46168da7c6fb93500a2f98212a939f8e835d288a29ce101915be45524d
font_02_sfnt_off00012c7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C7A 16248 bytes
SHA-256: c89cd4610e7ad6cabf04f9876a36b22b5c31ae53dba02aeaa1b4677657537330