Malicious PDF — malware analysis report

Static analysis result for SHA-256 f585d927705c9bfd…

MALICIOUS

PDF

78.4 KB Created: 2021-04-08 08:54:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 11622fd9aa5c6e6a695770402eac60b1 SHA-1: 0bca36023d4ee8a5ec098a6220b40bc613851900 SHA-256: f585d927705c9bfd575061d82de9e4796f55fb61fa6f8ee22ad08ddb5bab33a1
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, including a link farm, and one of the primary URLs points to a domain associated with malicious activity. The document body, though heavily obfuscated, suggests a lure related to a 'Neato botvac connected service manual', which is a common tactic for phishing or distributing malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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 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.
  • 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://fokemale.ru/strik?utm_term=neato+botvac+connected+service+manual PDF link annotation
    • https://cdn.sqhk.co/puzadowoke/kjfhbhc/gegik.pdfIn PDF document text
    • https://cdn.sqhk.co/joxopejufito/K6hemjg/express_color_block_dress_shirt.pdfIn PDF document text
    • https://cdn.sqhk.co/sativomofij/rggYsij/paper_shredding_machine_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/gasukatebu/iAiaXjj/35686138340.pdfIn PDF document text
    • https://cdn.sqhk.co/pulovafafita/ZN5gfYY/calculadora_de_iva_argentina.pdfIn PDF document text
    • https://cdn.sqhk.co/nogawevorus/crijjh3/jofisagadikezonunutojulu.pdfIn PDF document text
    • https://cdn.sqhk.co/gofejenizew/g8JVZBm/13597523000.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/e76d0db4-f2d4-4f51-ac55-f968d2b4f7ac/www.bpsc.gov.bd_job_notice.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/ra_un_nefer_amen_books.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/55560272432.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/95971836630.pdfIn PDF document text
    • https://2ea9429b-0332-4ee6-bb75-ab9535b56c99.filesusr.com/ugd/e2f7e1_1d032c0508ea464e96c12798e1e14da3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/remufuzu/joint_venture_agreement_form_philippines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9c4d284-f43e-43c0-a4a5-bfe2e53c69e3/32029855857.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/zukunupimopuk.pdfIn PDF document text
    • https://9c33b4df-6f14-41ad-9e94-a3a23f7ed20d.filesusr.com/ugd/2a975f_705b8af4d7c74a98be59985c26291de7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ffe2fc3-9d99-4c72-9fe3-3b382cf167b6/pioneer_receiver_vsx_521_bluetooth_adapter.pdfIn PDF document text
    • https://ff102949-4c65-4b7b-925c-ea9a98d885fa.filesusr.com/ugd/7a16bb_3d8838629d104af785c3718b692b58a3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/93651215167.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/instrument_voltage_transformer_connections.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8dbc162-a9d4-4bbe-be96-63ce56d0cbd8/narorulatawuzeki.pdfIn PDF document text
    • https://550dfcec-0280-4316-a0d5-68b74a7a20b9.filesusr.com/ugd/f59309_cf765359ef11474c8ea5b0cd460978b2.pdf?index=trueIn PDF document text
    • https://c7f0abc7-d23b-482d-bd16-0771495bb668.filesusr.com/ugd/bb13a2_410ae21d576f4f2cb9cdd82cf050c1bf.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f337b71-8367-4dbb-a529-d07990494824/dumibusutodemujurigibusom.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_off0000f402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF402 5252 bytes
SHA-256: 37c6ec0e2acab72f9b60ea2f6ef2ea73b850b1878cf2e7a1e85f6024581b9ac7
font_01_sfnt_off000105ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CE 11228 bytes
SHA-256: d27bd8bdcf1e21cb97b7320f156c1830bed7cf2cf1ca46b48bd0791e8207335c

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