Malicious PDF — malware analysis report

Static analysis result for SHA-256 0002b08a2d1b260c…

MALICIOUS

PDF

80.7 KB Created: 2020-12-18 05:49:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 642fc3093cc764ee92a133b7f7cfd228 SHA-1: 16a4e7b6876177fd5c594ec6ca72c97be78bd95a SHA-256: 0002b08a2d1b260c3e2b17ef47a9e7c5dd0fe20f980f8bc1141ed3bea53fec3c
254 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirectors and SEO link farms, indicating a phishing or malware distribution attempt. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the presence of URLs like 'https://cctraff.ru/123?utm_term=2010+prius+manual+key' strongly suggest this. The ML classifier also flagged the PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://cctraff.ru/123?utm_term=2010+prius+manual+key In PDF document text
    • https://pufetebad.weebly.com/uploads/1/3/4/7/134711346/7714038.pdfIn PDF document text
    • https://sozivutapadonen.weebly.com/uploads/1/3/1/1/131164462/4302760.pdfIn PDF document text
    • https://kilesikawagex.weebly.com/uploads/1/3/4/3/134372597/6217940.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://static1.squarespace.com/static/5fc28758084698658e68a1d4/t/5fcdb73a1e1a4d7de1496134/1607317307113/disable_lock_screen_password.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfdb415687f52b6b7b2913/t/5fc32def145a8629dc186c27/1606626800235/best_p2p_fishing_guide_osrs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fcb9fed-be6b-4911-96e6-b9151ebea23a/40549826386.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2b9942e537a05ef14dfe3/t/5fc4cfd9fa04221c71b71015/1606733787236/yamaha_big_bear_400_service_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34fd20ee-d30a-4295-b145-dfd28a2dac9c/bubexoxiter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5199c1eb-880f-4789-a87a-7d115b3117a6/34903721759.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ed4f1452f90b7fe57e24/t/5fcb9b23190ee82df8dff299/1607179043840/seattle_hockey_general_manager.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5820ae9fc3622d5411e5f/t/5fcd68b1978da30c5610ec15/1607297201525/mcat_registration_date_2021.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc378082bbd74065816d6b5/t/5fcb907936758319a55542b2/1607176313944/xbox_beta_cold_war_not_working.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e940bd14ff0dd29cb4d3/t/5fcd93c37ae85b53b2abfbdb/1607308227801/xovimo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce003f5895864d89538274/t/5fd15e517cf94534dc4cd479/1607556690095/scenario_meaning_in_math.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ac6fb84-30ef-49a3-af0f-d5dd1608618e/philips_simply_go_mini_manual.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_off0000ef77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF77 5052 bytes
SHA-256: 38872b063acce28b772fe65f93cad9f3328e4e1a83bd4e3ae91852e14b9030ad
font_01_sfnt_off0001007f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007F 11408 bytes
SHA-256: 1fc043ae6d5ce1c4d76a35524d9e30caf047b60eb39b1a59501d561ed21921dd
font_02_sfnt_off0001276f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1276F 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230