Malicious PDF — malware analysis report

Static analysis result for SHA-256 80026869707c12a7…

MALICIOUS

PDF

84.7 KB Created: 2021-06-03 21:59:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 23269cb8292ad2256abb51b16fde7f0e SHA-1: aac45c8a6ff56b105a0e6a7f3fae8c73012664da SHA-256: 80026869707c12a72b29ee09c8cb3483e8b557862aebc7a46cfb2398afd26f85
156 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9995

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://mezovuduw.ru/123?utm_term=baldur%2527+s+gate+dark+moon+monk+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454824/normal_6040eeb8d294f.pdfIn PDF document text
    • https://zebepinexorusog.weebly.com/uploads/1/3/2/6/132695607/pijalogodajozadodaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475741/normal_6039e17b97f8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393790/normal_603f10bcb6000.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407810/normal_600e6c3787526.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420260/normal_5ff2ca4f9ad9f.pdfIn PDF document text
    • https://rofunepez.weebly.com/uploads/1/3/2/7/132710772/fe5497.pdfIn PDF document text
    • https://raxasowofano.weebly.com/uploads/1/3/2/6/132681821/teloti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370284/normal_60443d5b9956a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483338/normal_6026382994248.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417314/normal_5fcd3a3c858c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376086/normal_5fe0fc3aab33f.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/f72c73e9-fcfc-4ac0-a9ae-ede0c225515d/how_much_do_storyboard_artists_get_paid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23e6efc0-b712-4d90-a56f-aa47f5ebc88c/65533068604.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9642b09d-a4d3-4917-9bb9-e4fe348b6175/telecharger_idm_avec_crack_et_patch_gratuit_pour_windows_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b54a211-f4cd-4348-8c1e-56dc150c45a3/city_mini_gt_double_car_seat_adapter_britax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf6ae12f-2fc2-4440-9aad-2a6af6340c8b/how_do_i_connect_my_wansview_ip_camera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/910381b1-088b-4140-ba70-8153830fc65e/robuluxikosavov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dad72ffa-f2c9-4b54-b103-7fc8dfc08796/toyota_camry_le_hybrid_2020_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf0fa3ba-9705-40f0-95de-167a7880d27b/the_dressmakers_handbook_of_couture_sewing_techniques_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69b69858-7563-4c3b-93b5-ff54d9b87df6/onn_universal_remote_codes_for_sanyo_blu_ray_player.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21e49ad6-14c9-465f-9e01-1c4b9ebd7db7/bavonusijigoxomotonaf.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_off00010cee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CEE 5292 bytes
SHA-256: 52ffc55e9fe24a8c8603e618bd337c55e7769ebddea25ef273e783d69936a7da
font_01_sfnt_off00011edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EDB 11280 bytes
SHA-256: 67c351413c70d43eca081e6c06c3898c5a53f1f494712251948b302a2b5708e3

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