Malicious PDF — malware analysis report

Static analysis result for SHA-256 03d213991b0bb271…

MALICIOUS

PDF

42.5 KB Created: 2020-10-13 19:37:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e0f2cf10b81124ccd0b479bd87d05038 SHA-1: 883c9b716541c02a78625196d564e32c2b65081a SHA-256: 03d213991b0bb2712cbfbbbfcf7a22f03c52d0c213dd86c9ce70009112aa7c22
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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://cctraff.ru/strik?keyword=cell+booster+app+for+android In PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/9b53ec72f.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/8276696.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/wozumadaku-mukevewurovebu-nefebo.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/7989682.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/038885c85ecf8f0.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/e5bcd2697.pdfIn PDF document text
    • https://site-1036907.mozfiles.com/files/1036907/32449899840.pdfIn PDF document text
    • https://site-1038669.mozfiles.com/files/1038669/12619614600.pdfIn PDF document text
    • https://site-1039566.mozfiles.com/files/1039566/30473984102.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/7350/8006/files/posogoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/7286/8518/files/how_can_i_spy_on_a_cell_phone_without_installing_software_on_the_target_phone_android_for_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0168/2852/files/abc_tv_schedule_el_paso_texas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/72500431468.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6814 5080 bytes
SHA-256: 71af5c2655caaf0599a52878c13feaf6c7503c5d6d9c194de3c2881b3d0e2c0a
font_01_sfnt_off00007954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7954 10548 bytes
SHA-256: 9db917b1ed1d37ed1dcb0f3ae073e1ab8ef213f1821ca153df71347174435485

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