Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f2dee06b1d7a5e0…

MALICIOUS

PDF

53.3 KB Created: 2020-10-15 07:56:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: c948f8f448dddd85f2b4eea7c1316d5b SHA-1: 2c476f7760e21abcf2b21c2efb001558fa6c9ad7 SHA-256: 1f2dee06b1d7a5e0abf209a1242d17c8090ceec64afaf95a0c82a1507727c560
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ggtraff.ru/strik?keyword=alberto+moravia+roman+tales+pdf In PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/rezewupiladu-ridumubumip-nutomixutuj.pdfIn PDF document text
    • https://dedotomonifagax.weebly.com/uploads/1/3/1/6/131606429/51b73.pdfIn PDF document text
    • https://rolosakuzorega.weebly.com/uploads/1/3/1/3/131379035/8909761.pdfIn PDF document text
    • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/wudovoki.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/vepulakanug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365552/normal_5f8720a9430af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f86fe7a71890.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8938/5890/files/lelusewuzag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1642/0009/files/gugisobawimisifuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/1748/6503/files/super_smash_flash_2_unblocked_hacked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8856/7706/files/fusodujepedobor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/1284/3414/files/jumper_cable_clamps_autozone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8a06036-da1c-40f0-93d7-2d7784adad16/66905042444.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70eb7ef7-29c7-4f98-acf9-a1d952b0d544/daribajajedunubuninirevoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93db19db-5b6e-4ed7-b07e-58f449ce69db/47526060253.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b0b9bd3-98a0-44a7-84a3-8fb9ee28efaf/nixarom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2440/1063/files/cuisinart_custom_14-cup_food_processor_accessories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5327/1208/files/87943547434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0590/5568/files/duregevatevokezobidediki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/8277/5212/files/organizational_career_planning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/5697/0914/files/2020_calendar_printable_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/6089/8213/files/punch_pbr300x4_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C2B 5376 bytes
SHA-256: 65a1df37a6ecada7a8e7e009831bccf7b9b259015c49a623876ce3d38b1a66e7
font_01_sfnt_off00009e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E56 12792 bytes
SHA-256: d74375d0a6d8e3ceb13803843f62d34b86dbf8ece550502854f5af6c6b88c110