Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd6cf606040b3850…

MALICIOUS

PDF

44.9 KB Created: 2020-10-31 11:56:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: fc0db71b8beefa8db9b1f171701400d4 SHA-1: 7235a87c12b615830046cd043f5b358b62d61315 SHA-256: fd6cf606040b385089aa6ca7dda80f7ab7f6bbb1dcee35622f3349f35ddca2e8
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. The document body also contains this URL and another suspicious Weebly URL, suggesting the primary purpose is to lure the user to a malicious site. While no scripts were explicitly extracted, the nature of PDF redirects often involves embedded JavaScript to facilitate the redirection.

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://ttraff.com/123?keyword=akon+i+wanna+love+you+spanish In PDF document text
    • https://dopikilazobowu.weebly.com/uploads/1/3/4/4/134488506/26d99b9ad7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370088/normal_5f8faa6eaf2c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427103/normal_5f9c40ff1c2b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377924/normal_5f931a9508a32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386620/normal_5f908b9e1d9aa.pdfIn PDF document text
    • https://fozijiruzixusap.weebly.com/uploads/1/3/4/3/134317533/lasonepoliguwoz-wegojavebo-pemawe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/leguvefu/moroxodutebegulave.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/760f72c3-df43-40a0-9f62-e0815848c208/12600262733.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/ruxirututu.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/78764811203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6160/6565/files/62519367289.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38bc6f7a-50f8-44ab-9651-8d977c75ae10/32435030446.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/nusiderixigotukovaralebo.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/wimubib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/1213/4315/files/formal_operational_thought_is_most_necessary_for_the_development_of.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1799/3877/files/mipuwudavibifikafalazib.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_off00006e4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4E 5116 bytes
SHA-256: f5a35ebb1e4222afe7f3d556e29799b2d6296ddc6f8e54b338eacd07488cd6cd
font_01_sfnt_off00007fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD7 12152 bytes
SHA-256: e1a84d29afcd67aa7ea479474d5bb40a23a1502b289c00120059a537104ea5f5

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