Malicious PDF — malware analysis report

Static analysis result for SHA-256 315f8ea11feb59a2…

MALICIOUS

PDF

36.1 KB Created: 2020-10-24 15:12:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 3e82b1f1b278aead2e211e5269385054 SHA-1: 9f7b45f460da5b1d1a4a1482d69b57e10be9f856 SHA-256: 315f8ea11feb59a24f71b97315c45405c87b4b84d05c611652bd42489297def5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by a machine learning classifier and heuristics indicating it links to known malicious redirector infrastructure. The embedded links, such as 'https://ttraff.me/aws?keyword=anneliese+michel+book+pdf', are designed to lead users to potentially harmful content. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic to distribute malicious content.

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.me/aws?keyword=anneliese+michel+book+pdf In PDF document text
    • https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/d1c80.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/8276185f.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/9232432.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4045700.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380522/normal_5f90c9a834bab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368471/normal_5f8e0931469c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370762/normal_5f924d0b39050.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368229/normal_5f87d197c8649.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/783b38f6-f3be-456d-bafd-a73a229a8b8c/50122911807.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f70c846c-197b-4b8c-9a5b-2ea0184f83f4/99322547692.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb969aa1-6eb0-4f5d-89d6-1fdc50168a57/vuxefuzasizazeworoze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab12a6cc-8b7b-418d-b9fe-e01eacee936a/79857954941.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/56406479036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4031/files/14492389776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4365/9677/files/58745929277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7274/2072/files/62692277621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9981/6090/files/rudram_with_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/7254/0838/files/engineering_mechanics_dynamics_5th_edition_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3318/8762/files/free_johnson_outboard_motor_repair_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7808/1959/files/logical_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/6556/9180/files/donol.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_off00004fe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FE8 5284 bytes
SHA-256: 3d75fe2f238601d6a8925ad12bb6e2e30855bf95092904f537e414fb5c3c6b74
font_01_sfnt_off000061bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BC 9712 bytes
SHA-256: 43f11fd926e253f7423b2e0901f72cad730fc594508a2427a014a28fafe62b4f

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