Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a8cc5aafea49df8…

MALICIOUS

PDF

68.5 KB Created: 2021-02-15 08:20:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 14d7df47727ee6d2659be602866ddf20 SHA-1: f8c37943caa4b5c29d603bd65853d7d34a8c73a8 SHA-256: 1a8cc5aafea49df8a0bcadb13abb6a9e8120d3678530ef3a7ae8d883b61db2d4
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/wix?keyword=hot+dog+bush+apk PDF link annotation
    • https://jowapiwinutakun.weebly.com/uploads/1/3/4/3/134365581/646f57eef1.pdfIn PDF document text
    • https://cdn.sqhk.co/xasujuteguk/haf1id3/9514402871.pdfIn PDF document text
    • http://bofitek.iblogger.org/revodif.pdfIn PDF document text
    • https://cdn.sqhk.co/mewedenemez/jehcrNd/tumefojafalilirazavomolik.pdfIn PDF document text
    • https://tomavibevojivow.weebly.com/uploads/1/3/4/0/134016690/256fb5e14dbde84.pdfIn PDF document text
    • https://cdn.sqhk.co/kufedefivuvu/UgAbq3J/cross_stitch_masters_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/zozijawutuxu/hTkwheu/candy_crush_commercial_song_ring_the_bell.pdfIn PDF document text
    • https://runumoviw.weebly.com/uploads/1/3/4/8/134854062/fefelobogasow.pdfIn PDF document text
    • http://gemosugobez.22web.org/chameleon_color_adapting_lwp_apk_pro.pdfIn PDF document text
    • http://pomirkapa.site/poe_delve_achievements_guidecr3i7.pdfIn PDF document text
    • http://ing-jobs-opportunities.com/lucky_block_minecraft_ps4r39h1.pdfIn PDF document text
    • https://luxederobidurip.weebly.com/uploads/1/3/4/6/134603039/5553754.pdfIn PDF document text
    • https://cdn.sqhk.co/tupuxinekowa/cI6wieE/best_video_player_library_for_android_studio.pdfIn PDF document text
    • http://pitushok.fun/online_android_program_compilere9jtt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mawivevixovoxet.epizy.com/revistas_de_arquitectura_sustentable.pdfIn PDF document text
    • http://ranemojak.epizy.com/77249349167.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDF7 5260 bytes
SHA-256: 4091ff4021b0ca129380a2519c6ed021844466d187d28f44f55272e1daa9e566
font_01_sfnt_off0000dfd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD2 11136 bytes
SHA-256: cc6af278fd783a2fa94725b7d75f3ea1abee3085dc8aec8a96e3ac90eb47acbe

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