Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5ce0f9b4248c6ea…

MALICIOUS

PDF

51.2 KB Created: 2020-08-28 04:22:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7c08feb4b915be31f001db901b00cb39 SHA-1: ee2e2b3c0245712b5d7e1478908aa40cacc3235b SHA-256: c5ce0f9b4248c6ea1ea6249a076742984d9ea6ccbf41bfd3b257b98270001e0f
154 Risk Score

Malware Insights

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

The PDF contains a lure for "Spirited Away" media downloads, directing users to a malicious redirector URL. This URL, 'https://ttraff.link/pify?keyword=spirited+away+download+mp4', is a critical finding, indicating a likely attempt to distribute malware or phish credentials. The document also hosts a large number of other PDF links, suggesting a link farm for SEO manipulation or to obscure malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.link/pify?keyword=spirited+away+download+mp4 In PDF document text
    • http://solefotid.sarahbutcher.com/uploads/1/3/0/7/130776131/315027.pdfIn PDF document text
    • http://tufeku.staticcomputations.com/uploads/1/3/2/7/132712072/tadet_perusobudawu_gerikejeveza_zamivetanaron.pdfIn PDF document text
    • http://files.alatebloomer.net/uploads/1/3/0/7/130775640/bapivel_tepadodawapa_rixuzisimuref.pdfIn PDF document text
    • http://veroxa.ernst-arch.com/uploads/1/3/0/7/130776132/b881083659.pdfIn PDF document text
    • http://files.jprintz.com/uploads/1/3/0/7/130775997/nijurevipizo_miwox.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/1/0433/4940/9960/files/20039255716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9640/8218/files/sociologia_juridica_unam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2905/9991/files/treasure_bruno_mars_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9660/2779/files/samsung_j260g_combination_file_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4540/files/2001_maniacs_full_movie_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/wumomonegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8556/8923/files/tusupuzuvupekonagafil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7359/1703/files/backup_whatsapp_android_para_icloud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1941/0328/files/blockchain_developer_course.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7523 5312 bytes
SHA-256: 9fc79baac46454ce2db1d2c0bcbe717550e8a1fc98b1c1d39ccf387f427b9cd9
font_01_sfnt_off00008733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8733 10348 bytes
SHA-256: 7dc89e6465690ea377ee0bfb5e5c8f7900357399adff7535a9f3f06dc865b402
font_02_sfnt_off0000aab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAB1 16192 bytes
SHA-256: b168039b654f979c140925a464ef75142322e9f7cc9a166e601b7839e62a3bff

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