Malicious PDF — malware analysis report

Static analysis result for SHA-256 fccca95f875d95c2…

MALICIOUS

PDF

97.2 KB Created: 2021-03-05 12:39:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 32b2faef27f1ca18b86635e51f787ae7 SHA-1: 5372ceee956a5483e00b361955ab90cc09190662 SHA-256: fccca95f875d95c242029f9a687d84f977626bab86cd77aedeed070926fc92ab
126 Risk Score
Tags
free-cdn-ebook-manual-lure

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://mezovuduw.ru/wix?keyword=surgi+snuggly+petco PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4478655/normal_60234131a0ac9.pdfIn PDF document text
    • https://poxagubojawi.weebly.com/uploads/1/3/1/4/131482812/4339d1f8bf.pdfIn PDF document text
    • https://zolowokixo.weebly.com/uploads/1/3/0/7/130738875/5911798.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/duzetis.pdfIn PDF document text
    • http://bovewitavivebu.getenjoyment.net/are_baby_g_watches_unisex.pdfIn PDF document text
    • http://poopo.ru/why_are_transition_metals_used_in_pottery_glazeslch6p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460690/normal_5fecb6e7b5952.pdfIn PDF document text
    • https://tirotoperanape.weebly.com/uploads/1/3/4/3/134315774/ffb9829.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461791/normal_5fdaa955e416e.pdfIn PDF document text
    • https://vogexuluvudo.weebly.com/uploads/1/3/2/6/132695782/validimat.pdfIn PDF document text
    • http://brumbum2.xyz/sheet_metal_gauge_to_thickness_chartbm01v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415745/normal_5fdfa79046f11.pdfIn PDF document text
    • http://kikababono.mywebcommunity.org/52172502880.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402000/normal_5fdaf7214e3be.pdfIn PDF document text
    • https://nagejezesalu.weebly.com/uploads/1/3/0/8/130874580/diwefesez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459941/normal_6023d959ed685.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379363/normal_60256c665c742.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fababe9-c08f-4b6a-af12-2dd2489000ac/network_guide_to_networks.pdfIn PDF document text
    • http://davofunup.onlinewebshop.net/vejerisazaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc750cdf-139e-4773-9db4-a099854ec27f/how_much_is_a_ps_vita_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3fe017a-4054-469b-9a20-52a967254814/will_a_2_amp_battery_maintainer_charge_a_battery.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3ec9cbc-d0fc-4297-8afe-f5ac835112d9/tavupileluro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68240c3d-4df1-4484-b3bf-dc7e4e26a4ed/lupal.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000142c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142C1 5096 bytes
SHA-256: 5d854db64f62e23b8a9f02efcbbb4c72a3f4adccafbf16ff57de1bb73fe30998
font_01_sfnt_off00015436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15436 10400 bytes
SHA-256: f5abad476574a310a769c579086be92aaf05d554b7bfc97bd8132b4a0bd20923

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