Malicious PDF — malware analysis report

Static analysis result for SHA-256 162247cf2c00100d…

MALICIOUS

PDF

44.4 KB Created: 2020-10-29 22:46:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 21ff75bf01a779304296bcc333a5955e SHA-1: 192fb5e43d5b527be46308de56a5de60028e74c8 SHA-256: 162247cf2c00100d7b2c6f063ac04b92324302b932096ed996cf2efa77718d3f
94 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 an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://gettraff.ru/pify?keyword=do+trees+have+standing In PDF document text
    • https://cdn-cms.f-static.net/uploads/4413017/normal_5f99b1ff72af6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381344/normal_5f8ee0a8b8019.pdfIn PDF document text
    • https://xowilululevala.weebly.com/uploads/1/3/4/0/134017879/sivil.pdfIn PDF document text
    • https://takijotirodone.weebly.com/uploads/1/3/1/6/131637658/a6246942.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390069/normal_5f93aef5cf921.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409258/normal_5f94462bde64d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380705/normal_5f91af8c86cf8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369765/normal_5f9050e158caa.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://cdn.shopify.com/s/files/1/0500/0449/2438/files/georgetown_university_area_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/512ca7d8-3dab-483d-af68-6885e4aefea5/rikamaje.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/figurative_language_3rd_grade_powerpoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1875/0616/files/research_discussion_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/3438/5089/files/twelve_angry_men_play_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/batetolavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/3754/4607/files/ict_logic_gates_sinhala.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_off00006319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6319 4900 bytes
SHA-256: 3a45c86c13c7a80b11b2302c820f0757ffe96f7c59a300f727aab051093f1592
font_01_sfnt_off000073c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C1 10324 bytes
SHA-256: 86e49fb071d892fe7f86f8e8e221c75af0589830e66aeb373fed8b5efa72fd99
font_02_sfnt_off000096e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E6 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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