Malicious PDF — malware analysis report

Static analysis result for SHA-256 be0e779425277523…

MALICIOUS

PDF

75.8 KB Created: 2021-04-01 02:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 880ef7829dfbc24346fb4ec77110e10f SHA-1: 736dd9f43ed7b850d8ef0e6ac90834025b880754 SHA-256: be0e779425277523e45ccaf297b299c61c29d7206c76f706318b02ceb8576656
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating high maliciousness. The presence of a large number of external links, identified as a 'PDF_SEO_LINK_FARM', suggests a malicious intent to redirect users to potentially harmful content or for SEO manipulation. While no scripts were explicitly extracted, the PDF structure and link farm indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://kitafawavan.weebly.com/uploads/1/3/4/7/134702073/3368567.pdf
    • https://cdn.sqhk.co/selusujava/hejbnic/vfx_free_videohive.pdf
    • https://cdn.sqhk.co/nunamarajop/jcgctrP/83546606296.pdf
    • https://cdn.sqhk.co/rixutixim/ehfighb/t-_mobile_store_manager_salary.pdf
    • https://motanaweda.weebly.com/uploads/1/3/4/3/134316912/xetanop_mobobujofi_xanozopexi_jezevari.pdf
    • https://puxezemugip.weebly.com/uploads/1/3/4/3/134311794/d74c32e4ce.pdf
    • https://xadigepuve.weebly.com/uploads/1/3/1/4/131454317/zared-jawufafelof.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://feedproxy.google.com/~r/wb/ENAH/~3/bQ3nTxENlgE/wb?keyword=over%20the%20rainbow%20violin%20sheet%20music%20free
    • https://s3.amazonaws.com/dezajok/1_g_mol_to_kg_kmol.pdf
    • https://s3.amazonaws.com/zesixefe/33776546403.pdf
    • https://uploads.strikinglycdn.com/files/252b7c53-001d-435b-a475-66ed7251b92e/xexusore.pdf
    • https://s3.amazonaws.com/jolozidabi/65320505453.pdf
    • https://f621ecf8-e26c-4db3-9bdf-176eeceb312d.filesusr.com/ugd/b3755e_a88b6a822ac9493eab5e94b2e6277898.pdf?index=true
    • https://uploads.strikinglycdn.com/files/eb9d168c-bd2f-4595-a804-4a17e66a0fa9/68374327342.pdf
    • https://uploads.strikinglycdn.com/files/6d37995a-d6f8-4dad-8080-e6d38391d9d1/why_did_they_kill_sonny_in_the_godfather.pdf
    • https://uploads.strikinglycdn.com/files/23e5800c-a0ae-4124-92ae-d48f618a806f/zalimopewejawiraru.pdf
    • https://uploads.strikinglycdn.com/files/b36c0b6a-012d-4a33-9a63-da0d2f4b606b/the_kite_runner_chapter_8_discussion_questions.pdf
    • https://s3.amazonaws.com/paropabaru/megabenom.pdf
    • https://uploads.strikinglycdn.com/files/cd92c160-902f-4256-aba3-00931b10c374/91676745236.pdf
    • https://6cdf8c5e-36a0-4b6d-987f-32d3d50030cd.filesusr.com/ugd/3c2e2e_27fc146e7b9c46af9e89157bfd5c4d33.pdf?index=true
    • https://uploads.strikinglycdn.com/files/cb26bdf2-6b1a-4a20-92e0-28293ce9c66f/what_are_tells_and_ziggurats.pdf
    • https://s3.amazonaws.com/tobito/what_are_the_values_of_life.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb95.bin
144e25258b6f7838671d07cc5a1f4ee5c3c26fefd9d0d9772a9ac347ade5ff63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB95 5440 bytes
font_01_sfnt_off0000fe00.bin
e89926d5b5e464a33348fca485c867ed113f59be4329165ed250cf8d4ca80d0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE00 10516 bytes

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