Malicious PDF — malware analysis report

Static analysis result for SHA-256 7562e9f20b2540b8…

MALICIOUS

PDF

51.6 KB Created: 2020-10-02 04:30:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 95790afb65e9be4af551bd3c5c29aba2 SHA-1: e20f6ab16d61c29983977c9001f0029e586b350b SHA-256: 7562e9f20b2540b80fd85f1075c21aaa36e93e370277cb8699436796deca23cf
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://ggtraff.ru/strik?keyword=keto+bread+bakers+cookbook+pdf In PDF document text
    • http://mabizona.friendsofhawaiianislands.org/uploads/1/3/2/8/132814241/luxufejegi.pdfIn PDF document text
    • http://files.westmaui.org/uploads/1/3/2/8/132814348/8856717.pdfIn PDF document text
    • http://files.peoplemanagerssurvivalguide.com/uploads/1/3/1/4/131453577/waziwupesoxijofira.pdfIn PDF document text
    • http://powowodo.adaptingtohearingloss.com/uploads/1/3/1/8/131871590/1434037.pdfIn PDF document text
    • https://site-1037166.mozfiles.com/files/1037166/42589459594.pdfIn PDF document text
    • https://site-1037276.mozfiles.com/files/1037276/28694280810.pdfIn PDF document text
    • https://site-1036651.mozfiles.com/files/1036651/ramulonupizumirovu.pdfIn PDF document text
    • https://site-1037203.mozfiles.com/files/1037203/vuwofosezirupod.pdfIn PDF document text
    • https://site-1037163.mozfiles.com/files/1037163/dinolojuzerovipakexux.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://uploads.strikinglycdn.com/files/515d0ea8-4572-4022-90de-d41c9e9b2d98/lamaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6686f013-6974-409c-8ddd-fd6cb5822007/12962566650.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d398274b-62ad-44ab-b95c-fa14c3b3b66f/diwugokosujopu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/820c6503-8e1b-41ef-9278-a941817e12ab/41185450150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9885/5840/files/extreme_tax_service_crossville_tn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4175/8101/files/the_humanistic_tradition_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0469/2728/2331/files/the_snake_lyrics_and_chords.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_off00007f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F48 4924 bytes
SHA-256: 5e32a1ec75027d7bdd77865372dea42ad1f4f8f94b8538686482898694090da5
font_01_sfnt_off00009015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9015 10372 bytes
SHA-256: eed42d0d849311eeab478678ec91868f70b73d0715abd6438a46a94f295c2b41
font_02_sfnt_off0000b38b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB38B 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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