Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7968b1f09f94cbf…

MALICIOUS

PDF

42.2 KB Created: 2020-11-02 04:43:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 6ce9d8750db9a9ece9dd2963be7a6df1 SHA-1: d5e34682da89e24e73971686fc9cd942ee748e8e SHA-256: c7968b1f09f94cbfac9dd40e5938c0049c4d0a106d6c71d772d519253e4958ee
124 Risk Score

Malware Insights

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

The PDF contains embedded links and text that direct users to a malicious URL, identified as a redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, and the ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the malicious URL, suggesting a phishing or scam attempt.

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 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://gettraff.ru/123?keyword=7x7+rule+powerpoint+example In PDF document text
    • https://giligigava.weebly.com/uploads/1/3/4/4/134494785/zisilesotetejipixita.pdfIn PDF document text
    • https://mawoluji.weebly.com/uploads/1/3/4/2/134265904/pusawudurewozo.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/1d4c3bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368777/normal_5f92ebbcc217f.pdfIn PDF document text
    • https://galuxenezinex.weebly.com/uploads/1/3/4/4/134437763/jipaduvune.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366343/normal_5f872e3fa0e5b.pdfIn PDF document text
    • https://lozulijulejibog.weebly.com/uploads/1/3/1/8/131857057/c9c5f43.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/38138456-2dfb-424c-a25d-632ce7ad50e6/the_beatles_complete_scores_box_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c28a539-788b-4b18-a1db-9fcb7b43b2e1/17346838068.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adc78689-3eb5-4428-bba3-b9ce3f779d78/uel_analise_o_cladograma_a_seguir_constituido_por_ona.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e7d31d8-28a5-4a83-addb-673269ef578e/17480765990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/7952/3231/files/11507541716.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebea482a-4f5a-4ca2-b3af-82e17de0fd04/zufogiluzukapaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/4999/6447/files/kotonoha_no_niwa_wallpaper_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ca1c8ea-4698-4ac8-9676-dbeec700af1f/mezagikepesabew.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_off00006592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6592 4932 bytes
SHA-256: 3d6587ddd53ecf7e21e3a11e714c20f8d4ef493ea1892605a123fd6bd683d16f
font_01_sfnt_off0000765d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765D 11108 bytes
SHA-256: 29c12a049ed7dd34e6695acc668861923bf7f6ba7b1be14662873b85bf86908d

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