Malicious PDF — malware analysis report

Static analysis result for SHA-256 59e6173940e19a24…

MALICIOUS

PDF

86.2 KB Created: 2021-03-12 12:09:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1e740f16abdc43c2620e9e10637622e0 SHA-1: 117783f30ffad095752b486e977844a56b09a9de SHA-256: 59e6173940e19a24d5f61f32ec7396f0a61769354fd341a1f04780e1229ed6c8
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://botokaw.ru/strik?utm_term=how+to+move+a+steinway+grand+piano PDF link annotation
    • http://biolinkus.me/casio_sgw-500h_reset_handsxb5bf.pdfIn PDF document text
    • http://latuha.com/rogimigotagozapatobejnr6ej.pdfIn PDF document text
    • http://nabavawuzafurur.mygamesonline.org/peace_like_a_river_chords_paul_simon.pdfIn PDF document text
    • http://fallofelin.online/domojaddaf6.pdfIn PDF document text
    • https://cdn.sqhk.co/mivijigonof/jbhhRja/95520786121.pdfIn PDF document text
    • http://cparta.moscow/worizokabesemamupotitusggn.pdfIn PDF document text
    • https://cdn.sqhk.co/sufokorume/ggmizhq/pink_sceptre_tv_32_inch.pdfIn PDF document text
    • http://tesocoin.online/law_of_agency_indian_contract_actdyox6.pdfIn PDF document text
    • https://cdn.sqhk.co/fusifanux/j5jhGjd/22857553356.pdfIn PDF document text
    • http://artyom.guru/petsafe_in_ground_fence_twisted_wire14561.pdfIn PDF document text
    • http://bitcoins-profits.com/57839164309oxm4w.pdfIn PDF document text
    • https://cdn.sqhk.co/nukusigemug/qjiLLew/free_games_download_for_pc_windows_7.pdfIn PDF document text
    • http://jidagepopisar.22web.org/5798538583.pdfIn PDF document text
    • http://siluvuxifebul.medianewsonline.com/jekisezebamomefaliwinon.pdfIn PDF document text
    • http://padojobimo.mywebcommunity.org/decrease_size_online_free.pdfIn PDF document text
    • http://tofotibuwul.sportsontheweb.net/joserabiranixikoritux.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://95043331-d9de-4498-ad98-35b8ac3ee23f.filesusr.com/ugd/5740b2_3f2bbc76f9174d30b06bd335ec683e91.pdf?index=trueIn PDF document text
    • http://lemujiv.epizy.com/fowazuz.pdfIn PDF document text
    • http://samanoniminowut.epizy.com/nokia_3._1_android_one_case.pdfIn PDF document text
    • https://be08d7d4-326a-4801-be9d-4496af17a43b.filesusr.com/ugd/d31907_549bc18913dd4877a001a860d0026521.pdf?index=trueIn PDF document text
    • https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_963dfe94484a4b08823dbe3bada89aaf.pdf?index=trueIn PDF document text
    • https://77da94c0-0f0a-445b-87af-e489a0b5ef66.filesusr.com/ugd/db1da1_788a6fc6335a4c65a3cd0cd857d444b6.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000105ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105AD 5252 bytes
SHA-256: 1c88b88f6dde96f75b65bb60f89639e73e2cd99fedbeeed8d1c32f71dd4516f8
font_01_sfnt_off00011784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11784 11204 bytes
SHA-256: ae35973520b144dc6a35b9ab76900ab8dc3da2891019352f378e7652bbe2f9af
font_02_sfnt_off00013d5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D5A 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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