Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c1c19197252dc29…

MALICIOUS

PDF

50.0 KB Created: 2020-11-01 17:04:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3d3037883a6166e69cecde57bc490e88 SHA-1: 9b136a5411a375417d38210e200e8b6be8557e9d SHA-256: 7c1c19197252dc291f6bffa5b5e6bfdf0ea7704009aa8fdaf061b49725ad6580
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. The embedded URL `https://ttraff.cc/123?keyword=jojo+heritage+for+the+future+tier+list` is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated.

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.cc/123?keyword=jojo+heritage+for+the+future+tier+list In PDF document text
    • https://kakawugob.weebly.com/uploads/1/3/0/9/130969990/damemafamawatojuju.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://s3.amazonaws.com/simujix/hp_power_supply_pinout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/6543/2985/files/kedufimo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19621eb4-07d8-4d71-baaa-dd6745649805/89101171638.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc0390c1-2445-4539-9c24-8b305ca20d39/potions_or_witcher_traps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0508/7952/9110/files/your_name_taki_full_name.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7322/2294/files/60954394419.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e515148-56c6-4556-a0f4-37bcd59ea502/taxov.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/atto_di_notoriet_editabile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7744/9366/files/scientific_method_worksheet_printable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98b65ed9-5bc5-4890-a9e3-bb2632c356f3/7712252475.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/principle_centered_leadership_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/3414/6493/files/nivetixivoxitola.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_off00007725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7725 4872 bytes
SHA-256: 372e4f8f3f34f80bdfb2c93ecbdc66a0866809384407bc3cd38e6b2a9314ac1e
font_01_sfnt_off000087d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D6 10872 bytes
SHA-256: 7e5bd0f19f494a889b598b23c21326d1b508a78e96b8b7463c15cf6197886f76
font_02_sfnt_off0000ac6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC6C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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