Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6089e204d32daac…

MALICIOUS

PDF

80.0 KB Created: 2021-04-07 10:57:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 596fbac025251d10743bb1e8433383af SHA-1: 690657b744779295cc52d4001210ca0a225303e1 SHA-256: c6089e204d32daacef759ea5796533b49ab8344eb5ee25711bee4953a8386927
186 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. 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 primary external URI points to a URL containing 'how to reset bios password lenovo t430', indicating a lure to attract users seeking technical assistance. No scripts were extracted, but the overall structure and link farm behavior strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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.
  • 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://pelibifir.ru/strik?utm_term=how+to+reset+bios+password+lenovo+t430 PDF link annotation
    • https://vugogirofezufus.weebly.com/uploads/1/3/4/3/134355312/togaribub_doraxupokuxelik_muxuzipewotin_kobugavewiziven.pdfIn PDF document text
    • http://ruzamaji.getenjoyment.net/vomagepurarubezijoburoku.pdfIn PDF document text
    • http://kusukeluwabe.mywebcommunity.org/69663826663.pdfIn PDF document text
    • https://novunafa.weebly.com/uploads/1/3/1/3/131379228/wuvujuj.pdfIn PDF document text
    • http://jalatuxu.iblogger.org/52745240767.pdfIn PDF document text
    • https://gojatoxemoniro.weebly.com/uploads/1/3/4/8/134894745/8dac21.pdfIn PDF document text
    • http://takavejesutep.iblogger.org/icheme_get_chartered_report.pdfIn PDF document text
    • http://bukudix.getenjoyment.net/tuxuxufeku.pdfIn PDF document text
    • https://tafujopebipa.weebly.com/uploads/1/3/0/7/130774972/ledapuwere-tapar.pdfIn PDF document text
    • http://lusuwivaw.medianewsonline.com/traductor_de_documentos_de_aleman_a_espaol.pdfIn PDF document text
    • https://gidepezugubuwo.weebly.com/uploads/1/3/4/7/134766768/7ce1af6e70.pdfIn PDF document text
    • http://dufifudusimube.mygamesonline.org/jurnal_perilaku_altruisme.pdfIn PDF document text
    • https://linepofikoleku.weebly.com/uploads/1/3/4/4/134492010/6de7307c.pdfIn PDF document text
    • https://kufojinelimipi.weebly.com/uploads/1/3/0/7/130776518/ranutifa_rozopunesotibe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://7be326e9-a1fd-4761-a84c-83c904220737.filesusr.com/ugd/37e945_79c6c505401046a1ad688a7792a67da2.pdf?index=trueIn PDF document text
    • http://rugoxesoteko.myartsonline.com/pipowovorediz.pdfIn PDF document text
    • http://mepumubim.rf.gd/whatsapp_plus_free_iphone_6.pdfIn PDF document text
    • https://deed868a-3c3f-4b0d-b3ae-f9ebe8a38c33.filesusr.com/ugd/95283b_0c0183097577426689c2fac7a6b4238b.pdf?index=trueIn PDF document text
    • https://ff536187-e25a-4bd2-965b-ff1113cf40b0.filesusr.com/ugd/bfcccc_7d89500253f740abb7bc8f1a9acd840a.pdf?index=trueIn PDF document text
    • http://datidogebe.epizy.com/upper_back_physical_therapy_exercises.pdfIn PDF document text
    • https://b354d503-40d1-4c97-84b4-bc0b16c12f35.filesusr.com/ugd/8c7d07_3e3b4b3e57e643a380650a805cf48654.pdf?index=trueIn PDF document text
    • http://roveramo.atwebpages.com/how_to_reset_whirlpool_top_loader_washing_machine.pdfIn PDF document text
    • http://vozerurivuboki.epizy.com/anatomy_and_physiology_in_telugu.pdfIn PDF document text
    • https://08202b68-adf4-4b7d-bb06-fcebe54c78b8.filesusr.com/ugd/76dd3d_9b6db0281e554475b0b1f33d9054c41c.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ece1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE1 5388 bytes
SHA-256: fb6ff7a17edb3282b79761136bf11107e3e0c145d80aab6d7beb1048b9fa7202
font_01_sfnt_off0000ff49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF49 10784 bytes
SHA-256: bd9c702ec533fa89360c16793d9d3c290a8141804ce4d4e7be15c10338f763fa
font_02_sfnt_off0001240c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1240C 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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