Malicious PDF — malware analysis report

Static analysis result for SHA-256 301861f0cba5b19e…

MALICIOUS

PDF

42.8 KB Created: 2020-10-25 21:22:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 06cf0b31e5154adbc51b8e6a933ea951 SHA-1: b8adb1828ebdd5cd8c89d7bb1a81cf54e5e59723 SHA-256: 301861f0cba5b19e672d1ed1f88a03e9867f934b4deeec5ff34fc5265d640627
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ttraff.me/123?keyword=sustainability+merit+badge+worksheet+answers In PDF document text
    • https://fenivubad.weebly.com/uploads/1/3/4/4/134482284/gilizajimunipati.pdfIn PDF document text
    • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/gedosimosivujojad.pdfIn PDF document text
    • https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/xumilokor-bivusot-vedewe-tokej.pdfIn PDF document text
    • https://silepokow.weebly.com/uploads/1/3/4/3/134366863/1c0d15a6ad264a3.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/016c0.pdfIn PDF document text
    • https://wurikosaradusif.weebly.com/uploads/1/3/1/3/131384544/bobizetaxoji-dezow.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/e8c08b30-b6a8-4d45-9385-ebf2b571b83e/95301090911.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f3b9373-a756-495b-bf17-af61eadd34dc/sazojusazejawebuja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12107846-6b8f-487b-b1ba-53d8410000c9/4648044538.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6c5a7a9-296d-4f3f-806a-6d96d96c32de/dowawosolovufiba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b58bc8ee-10d7-43d7-8a1a-4666cd4f369a/77321943225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/5625/0013/files/managers_amendment_ndaa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6818/6024/files/matplotlib_figure_size_not_changing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52102f59-4f96-4a9c-bdf6-0460ce138262/wojes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ce199cd-7d10-40ad-a6cd-e672959b74ac/watch_boss_hindi_movie_online_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9286ae9-aba7-4af5-b900-e0ca5a0b4ec5/16884616609.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c45a05a3-087c-407e-96fe-ab7e1462986d/38029702733.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84fedb9c-c5e8-43c3-8cac-4c55f0aabc5d/izmir_travel_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5c52835-c6c7-41f5-ac13-b5482781a428/buxikuliz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c7dd858-f894-48d1-b2db-29f8cdd31e07/the_game_by_neil_strauss_free_download.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_off00006717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6717 5740 bytes
SHA-256: 0b33e4081193fe86d05a48188360493cdcd1cc5c5f01e595fa58ba60513a3996
font_01_sfnt_off00007a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A77 10300 bytes
SHA-256: bec44b3e37b2be4abd03ca7c78c651a2ca4d8a97751ec00a3b69c23a20a4fe14

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