Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e0b1b236d77a87a…

MALICIOUS

PDF

70.9 KB Created: 2021-03-30 05:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b96a28757ec3b1669917721f077ca080 SHA-1: 1b0a6fa44bbfe804c5abe5d75340dec75b334ee5 SHA-256: 6e0b1b236d77a87a936d5de1d2284cc284034ef98b8f73786f258fe4c9f993df
154 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting it's part of a link farm. One of the primary external URLs, https://lozipotod.ru/award?keyword=rrb+alp+result+2020+pdf+download, is suspicious. ClamAV also detected this file as Pdf.Phishing.Trojan, indicating malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to lure users to external resources, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5162

Heuristics 4

  • 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
  • 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://lozipotod.ru/award?keyword=rrb+alp+result+2020+pdf+download
    • http://zixaxagewan.mypressonline.com/cambridge_ielts_2_listening_test_3_answers.pdf
    • http://nitapida.mywebcommunity.org/pengertian_bendungan_asi.pdf
    • http://viruxego.mygamesonline.org/dazogarexorexaluro.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c7d8dd82-f2eb-492a-af3a-3cd8256c1cef/sosinejire.pdf
    • https://d62ff7d9-aefc-4ab8-8cdf-af38868aea16.filesusr.com/ugd/54b9a1_f59cf82c6bf248a2ac5b6bd76df33437.pdf?index=true
    • https://uploads.strikinglycdn.com/files/0e9f1315-b4a4-4ac3-a0bc-da138d200c5d/fopukedixorezoj.pdf
    • http://benamow.myartsonline.com/xufidesunawato.pdf
    • http://bavotuvezomevi.myartsonline.com/8848671998.pdf
    • https://aefbb2f1-1cfc-4a48-aab2-d72547d84173.filesusr.com/ugd/2f3ac6_6aafdfd69bbc45a38da942063517969c.pdf?index=true
    • https://uploads.strikinglycdn.com/files/b51cbc85-ba32-4a6d-8bc2-c534bb4c40cc/delta_portable_planer_22-540_review.pdf
    • https://ce55c564-0e79-48ac-bd91-a034cff8554b.filesusr.com/ugd/bd1fc0_7bae9e70464848cd9f2b6b310225e093.pdf?index=true
    • https://23751d96-d7b3-42ca-b8ca-e459b671ea95.filesusr.com/ugd/7de994_45276b5d284249d3b8afb5561be0527d.pdf?index=true
    • https://uploads.strikinglycdn.com/files/510852ad-79b9-4021-8900-6f84eadf2b9d/kenmore_mini_ultra_sewing_machine_price.pdf
    • http://mipagolawalixa.onlinewebshop.net/70100545895.pdf
    • https://s3.amazonaws.com/rizijubovapuk/form_ww_vat_audit_report_due_date.pdf
    • https://uploads.strikinglycdn.com/files/176498f4-fb66-46f9-a641-505b00d57734/pearson_world_history_textbook_10th_grade.pdf
    • http://fedonefekipide.myartsonline.com/pisoxo.pdf
    • https://uploads.strikinglycdn.com/files/13273a4e-917c-412d-a556-0f5016447144/zawak.pdf
    • http://desejole.myartsonline.com/23038660546.pdf
    • https://uploads.strikinglycdn.com/files/765320de-7622-4523-99c7-ca5098c1eaa9/whirlpool_thin_twin.pdf
    • https://s3.amazonaws.com/wegemebufojafak/can_u_sell_properties_in_monopoly.pdf
    • https://uploads.strikinglycdn.com/files/4fb6d61d-8d43-4638-bc2d-4bbbb2922170/ganetaziwope.pdf
    • https://6f672a44-e16c-4921-a0f1-e3781c0647c5.filesusr.com/ugd/bda22a_c3efc6876b464449b3c80de921125103.pdf?index=true
    • https://s3.amazonaws.com/jipowumat/gta_5_cheats_pc_free_money.pdf
    • https://s3.amazonaws.com/polojuliragam/mumibamabunikaxi.pdf
    • https://s3.amazonaws.com/dojonuta/86270147083.pdf
    • http://jisijuvod.myartsonline.com/synonyms_worksheet_for_grade_3.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010acd.bin
441612ef84f15f743c0f19373eaac5e8c286260be5a9e01462b77bc485e8f89e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10ACD 5548 bytes

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