Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a66b00aec95926c…

MALICIOUS

PDF

59.3 KB Created: 2020-11-06 20:43:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 1c2ed20c504db2e6c3a6a62e467ca5b9 SHA-1: 79ade5493e73aacde0dda71adc76caf7e7fdea5e SHA-256: 7a66b00aec95926c9444a4de215ab8a071c1c62797f2c7b4fb71d22a6042dc80
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffset.ru/aws?keyword=little+tigers+asia PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4419640/normal_5f9bb1a3b7497.pdfIn PDF document text
    • https://sitizoxibe.weebly.com/uploads/1/3/4/3/134317871/7401697.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/36173bc0f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450154/normal_5fa2873dac5d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371272/normal_5f96719a70a3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378153/normal_5f9a895c698d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411228/normal_5f9597d22997d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/genedesowul/singer_simple_sewing_machine_manual_3232.pdfIn PDF document text
    • https://kakuluk.files.wordpress.com/2020/11/golotefinirubikajuvob.pdfIn PDF document text
    • https://dowuwiridewe.files.wordpress.com/2020/11/73733643931.pdfIn PDF document text
    • https://fidunonip.files.wordpress.com/2020/11/8625666511.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56a1a366-ee3a-4a12-a203-f9da7c082605/75263587772.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B4 5520 bytes
SHA-256: 11a7807b837584bf9da7003196e50884a101863a516f96c0ddebaad742019057
font_01_sfnt_off00009809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9809 4792 bytes
SHA-256: 32656e199dfbdd456b99d41cc72fed3c22b091864621bbb4e89e86985dbf6dd5
font_02_sfnt_off0000a863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA863 4380 bytes
SHA-256: 8260ab7a71bd709a4299531c55cbaf4a9fffbe52134c0125cc2b1d29395571c2
font_03_sfnt_off0000b844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB844 12268 bytes
SHA-256: bfc41d8c915d36489d9034ceeaa0403aff204095323aef8d5c2271e414e45238

Open this report in the interactive analyzer, or submit your own file for analysis.