Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe46d68f1df8ea8f…

MALICIOUS

PDF

75.2 KB Created: 2021-03-27 22:30:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3d8f67462c2c4276fd391d309a710024 SHA-1: 824364e38a3f1e78ff1ef838b61c647e420a4b5e SHA-256: fe46d68f1df8ea8fdb34e4d6be20430a774cba73eea19a773d966640ce672ca5
186 Risk Score

Malware Insights

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

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 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/aws?utm_term=bosch+tronic+3000t+7+gallon.+electric+water+heater PDF link annotation
    • http://copyrighytsupport.com/chemistry_dictionary_english_to_gujarati_free_downloadolwin.pdfIn PDF document text
    • https://cdn.sqhk.co/pasededi/hwjgbSk/dungeon_chronicle_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/pavuraxutem/imxFlgH/mills_sociological_imagination.pdfIn PDF document text
    • http://italia-doc.space/bogarejilirekinapibuwuld0749.pdfIn PDF document text
    • https://nifebupamej.weebly.com/uploads/1/3/1/6/131607321/621a5c97aa23.pdfIn PDF document text
    • http://batmbatm.ru/go_math_kindergarten_chapter_9_answer_keyqvoag.pdfIn PDF document text
    • https://favesalaliba.weebly.com/uploads/1/3/1/3/131384568/43d8f7691f29d.pdfIn PDF document text
    • https://cdn.sqhk.co/jebozibiru/pgdigiC/gekevijojuvadelawugozax.pdfIn PDF document text
    • http://shopeuro.pro/55315313237a2plc.pdfIn PDF document text
    • https://wedidosav.weebly.com/uploads/1/3/1/6/131637371/f0e7e.pdfIn PDF document text
    • http://hookup753.fun/95308620407d7f8x.pdfIn PDF document text
    • https://molawaxurot.weebly.com/uploads/1/3/4/6/134699933/6b7b1c.pdfIn PDF document text
    • http://macsk.space/all_excel_formulas_with_examplestysns.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://d52aed46-be45-4f9b-8106-cf6fc7ee66c0.filesusr.com/ugd/b148e5_146df0204b584ee7ac170deb9b348c6a.pdf?index=trueIn PDF document text
    • https://d52aed46-be45-4f9b-8106-cf6fc7ee66c0.filesusr.com/ugd/b148e5_d98ee7955d04418aa7c271b3492a6f03.pdf?index=trueIn PDF document text
    • https://d56a38bf-d62e-453c-9b5b-5b2fe88aea46.filesusr.com/ugd/359e64_3e41696035a044c2bd42bcfcd10857e7.pdf?index=trueIn PDF document text
    • https://d6d3a1c5-32ce-46e9-ae92-c5b8d84d65d9.filesusr.com/ugd/a3b54b_ef3d8aa024ae4108a3a10b748b06bf05.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE849 5620 bytes
SHA-256: 8fa4ed668b2881bbb2f5e5498ffa8a0227b64abb5646b4869335fd4a6a4e6f56
font_01_sfnt_off0000fb7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB7C 10520 bytes
SHA-256: fac1f050cf314c1ee530be52f7178e45cc663557463f34184cb69932503a6f4f

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