PDF static analysis report

Static analysis result for SHA-256 0544784a13897ac9…

SUSPICIOUS

PDF

44.6 KB Created: 2020-11-05 19:34:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9d6aa80b3600a74adfd1901d6fdce34d SHA-1: bd84445526041313331a09bdcc502602600a1070 SHA-256: 0544784a13897ac991357e1d31ad146b681ffc65e066d3fcf0a6557932a8441b
44 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains an embedded URI pointing to 'https://traffking.ru/123?keyword=nitro+type+hacks', which is flagged as suspicious. The presence of a visual download button and the ML classifier's high confidence score further indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffking.ru/123?keyword=nitro+type+hacks PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4415531/normal_5f9af776005c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378618/normal_5f8ac20719590.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423696/normal_5f9fbe2581973.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369509/normal_5fa03739c0151.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_5f892efb878e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390068/normal_5f94590548178.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414860/normal_5fa3ed58a2aca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388428/normal_5f9e77bef14b3.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/tevigotu/adobe_acrobat_to_word_converter_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/2834939325.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/16597892047.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/modelo_atomico_de_bohr.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c9106e3-16dc-48fe-9e2a-54d3f846ed12/.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/summary_of_luke_1025-37.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000891f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x891F 18476 bytes
SHA-256: 042d88154e1553fe68bbb9f6901e56f38c0e2dd73f4a4d9c41628864bbf28c58
font_00_sfnt_off000054a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54A1 5124 bytes
SHA-256: 7c7caf42b179d245b9cfc50335f911ff3ce89c9dbbd309a932adef31639ca796
font_01_sfnt_off00006616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6616 10184 bytes
SHA-256: 8bca07bc7e628f7b923074a68a2ab888b5b1255055adbd13a46d93b5531efb61

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