Malicious PDF — malware analysis report

Static analysis result for SHA-256 15a4ab578f6c7480…

MALICIOUS

PDF

74.8 KB Created: 2021-04-28 18:28:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 6b80def53663b55f519fde12d2d79036 SHA-1: af19c15d2524f2910a0e57f3c84fa9380926c158 SHA-256: 15a4ab578f6c74801bc08b4cbd8d95744fc304e0ef05f7976404ee30bd2813a7
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, with one prominent URL pointing to a suspicious domain, suggesting it's part of a link farm or phishing campaign. The PDF structure and embedded content, though heavily obfuscated, are consistent with attempts to redirect users to malicious sites.

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 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://xezojetit.ru/strik?utm_term=whiskey+words+and+a+shovel+pdf+online+free PDF link annotation
    • https://zokukomusisitu.weebly.com/uploads/1/3/5/3/135323242/muduwamu.pdfIn PDF document text
    • https://dunomomavelow.weebly.com/uploads/1/3/1/4/131407267/d864e7926973f0.pdfIn PDF document text
    • http://pegiwikepideke.iblogger.org/war_room_book_free_download.pdfIn PDF document text
    • https://boloxekovo.weebly.com/uploads/1/3/2/6/132681585/pozuwer_murixopude_bulizufin.pdfIn PDF document text
    • https://fewojejano.weebly.com/uploads/1/3/4/3/134348079/lajixax.pdfIn PDF document text
    • https://rosafuzumago.weebly.com/uploads/1/3/1/8/131857847/xidijelumomotoz-gilawugu-gaxadir.pdfIn PDF document text
    • http://kozaredibedemok.iblogger.org/39779959378.pdfIn PDF document text
    • https://loseseseveru.weebly.com/uploads/1/3/0/8/130813975/2914407.pdfIn PDF document text
    • https://mobugozuko.weebly.com/uploads/1/3/4/8/134869294/laniwutuwod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/8f0d52ea-7d57-4b34-a142-0a7dc4a00c40/sepir.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/epdm_rubber_gasket_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/wuvavixaxenozepulova.pdfIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/ten_eyewitness_news_adelaide_reporters.pdfIn PDF document text
    • http://jirunadufed.epizy.com/crop_rotation_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa6bfeb6-3a02-410e-be4e-4a489fabbf79/what_is_importance_of_effective_communication.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12eb28cc-069e-4dd1-b44d-885d4ad91874/how_to_plant_lettuce_seeds_in_pots_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/beginning_joeboy_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c76649e-0df8-44f5-b205-b73a7687267c/how_many_questions_on_the_mmpi_2.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/chemistry_chart_periodic_table.pdfIn PDF document text
    • http://botizadis.rf.gd/centos_command_line.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e830e3b8-77f2-4485-801a-5f76f93724c5/92935704861.pdfIn PDF document text
    • http://beruleruz.rf.gd/wpf_listbox_datatemplate_different_types.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BC 5168 bytes
SHA-256: f7e1aeed573a80382b384c1e1b2a58bd319e52e37f38a001119b2a0eea37210f
font_01_sfnt_off0000e95c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95C 11248 bytes
SHA-256: 703a1d6ccaf5f58b5c94e107f96d8c483ede5e9c3ed92b0906631a8593edd319
font_02_sfnt_off00010f86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F86 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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