Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0fa349b4e2389ae…

MALICIOUS

PDF

68.9 KB Created: 2021-02-26 21:11:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 0509f1a7931a907b7c9c083533e5fa86 SHA-1: ce78fe833e51168b73ec709e5d433f4aa2ba1edd SHA-256: f0fa349b4e2389aeb3f5aaa2ae6c442d0a30c9f2b0bf50f577a0fde2dcb328ae
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/123?utm_term=where+is+thermal+fuse+on+maytag+centennial+dryer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4478146/normal_600f40c0e1e75.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxugaveg/hhs6jii/fivegorenixuzezasomage.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/if6PVia/5029186697.pdfIn PDF document text
    • https://jedidaril.weebly.com/uploads/1/3/4/6/134687024/8e1f4993b0.pdfIn PDF document text
    • https://cdn.sqhk.co/jesisuvov/fhbhgij/8588670837.pdfIn PDF document text
    • https://lilafigofuku.weebly.com/uploads/1/3/1/3/131398347/tobimojevazamotizoni.pdfIn PDF document text
    • http://jaralet.getenjoyment.net/rheem_hot_water_heater_installation.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379217/normal_5ff146666e8e4.pdfIn PDF document text
    • https://fezagigix.weebly.com/uploads/1/3/0/8/130813643/lozol.pdfIn PDF document text
    • https://cdn.sqhk.co/xurazegoba/gdOhjnG/talking_dogs_on_tiktok.pdfIn PDF document text
    • https://cdn.sqhk.co/selodiro/Vgghfhh/best_call_blocker_app_for_iphone_2019_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wupifufexix/ySfLjfG/quran_teacher_jobs_online.pdfIn PDF document text
    • https://xikobidena.weebly.com/uploads/1/3/6/0/136097244/guzevutome.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413243/normal_600b20c76730d.pdfIn PDF document text
    • https://cdn.sqhk.co/fijajiles/1ihIjhe/all_bollywood_latest_ringtones_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cd56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD56 5548 bytes
SHA-256: 7e14c3d14939d6b714522229f090c8e0c71fa75cbc3f530ecdfedf9de7a8742c
font_01_sfnt_off0000e023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE023 10716 bytes
SHA-256: e5f9aef7510f99e6cd8923ffc0abc07f1578d166b68c30227e620c4de72585dc