Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0002e56cc6d190d…

MALICIOUS

PDF

79.4 KB Created: 2021-03-09 23:19:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a2ce04afaba74cbfd8e1a33b4966b1d4 SHA-1: 56e6f089ad0e10faa1f60fa3dc22b405d12a057d SHA-256: c0002e56cc6d190dc4e0bce47a9f47ae4ed8572cec2c22887c33dfe8c3eee09c
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 0.9991

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://resalured.ru/123?utm_term=mentalist+season+6+subtitles PDF link annotation
    • https://pojoguteguv.weebly.com/uploads/1/3/5/9/135996175/437579.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417990/normal_5fe0846aa597a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405639/normal_5fe136d6134f2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449987/normal_5fdfbdff6dc17.pdfIn PDF document text
    • https://vilifamizebu.weebly.com/uploads/1/3/4/6/134617150/dilorid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451355/normal_5fce30b155eda.pdfIn PDF document text
    • https://bewepuxajijasi.weebly.com/uploads/1/3/4/3/134362307/5ea1b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393785/normal_5ff77a0fa6361.pdfIn PDF document text
    • https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/xonil.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/6f497845-5abf-4784-8cca-4ae63d307859/how_to_load_samsung_washer_without_agitator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c8e18f4-bb45-48f9-84c5-6ae126b97a01/54972606552.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/177e34e9-d8e7-4c41-a91c-6f0950e7f34c/5994182808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/084a1e99-099e-41b8-b286-2614a373b5a3/zedeboralekigurotupe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2179db49-9780-46c5-a1e4-b575ae62b85a/best_buy_kitchenaid_5_quart_mixer.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/miwatibinubokapuv.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/99198660776.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/create_list_from_template_sharepoint_365.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/35662412702.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92bd2f37-e0d2-49c7-926d-c7f7fef056e5/78422482534.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/aamir_khan_movies_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45807a0f-cfae-4576-ba29-1754bcd49a3a/the_beautiful_and_the_damned_characters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb73c8d6-6777-4df8-97e5-de61506c850f/what_type_of_oil_for_toyota_forklift.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/unglcklich_formuliert_englisch.pdfIn PDF document text
    • https://s3.amazonaws.com/xijuxosisomuna/international_phonetic_alphabet_translator_german.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_off0000f82a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82A 4880 bytes
SHA-256: d7e8cd725369d627cd3efe250421537790ed3e66d97c6461ff551668ccbe86e9
font_01_sfnt_off000108df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108DF 11056 bytes
SHA-256: 09fe1d20b54b42cdad0af41ae46539deb3520a92c6523341ced00d492adf192b

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