Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ee37e884a10c2f…

MALICIOUS

PDF

44.2 KB Created: 2020-10-09 01:54:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 63f95e402b44fd9ff049ec75fd854963 SHA-1: ac3831289e4d0a0832e215c741bd644e812d658a SHA-256: 96ee37e884a10c2f463b8365e41d97425bf44dea27fe9a5c3a513f9422fb2a63
124 Risk Score

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/pify?keyword=cs+go+skin+trading+guide In PDF document text
    • https://site-1041682.mozfiles.com/files/1041682/84625293737.pdfIn PDF document text
    • https://site-1036632.mozfiles.com/files/1036632/wevajinitakegopeke.pdfIn PDF document text
    • https://site-1042888.mozfiles.com/files/1042888/fomonanuzenufegutegodajag.pdfIn PDF document text
    • https://site-1039535.mozfiles.com/files/1039535/2138801640.pdfIn PDF document text
    • https://site-1037061.mozfiles.com/files/1037061/lalowojurukizumuzu.pdfIn PDF document text
    • https://site-1044453.mozfiles.com/files/1044453/kopegutovetowutirumatepe.pdfIn PDF document text
    • https://site-1042969.mozfiles.com/files/1042969/poduj.pdfIn PDF document text
    • https://site-1043297.mozfiles.com/files/1043297/tipepuwulajigot.pdfIn PDF document text
    • http://files.chenguatmit.com/uploads/1/3/1/1/131164399/kuwonuwefutek.pdfIn PDF document text
    • http://zibeduje.greenagenda.co.nz/uploads/1/3/1/4/131438362/zeresege.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://cdn.shopify.com/s/files/1/0438/3683/3954/files/rawafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0300/2019/files/dragon_block_c_transformations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3157/5198/files/wadiwexob.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_off000061aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AA 4928 bytes
SHA-256: 689939ac2432397dd2ec3f02396fcdcbcdd2a578fefcb94431805b302af4a843
font_01_sfnt_off00007278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7278 10624 bytes
SHA-256: de700e1f00f54e50adfed9483a8092fcdf99363cbf27b1452211ce60a12dca33
font_02_sfnt_off00009650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9650 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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