Malicious PDF — malware analysis report

Static analysis result for SHA-256 12d162abba1960d6…

MALICIOUS

PDF

44.3 KB Created: 2020-10-07 13:42:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: a83b75cf18f1679761053f888f978f5b SHA-1: edaf9f46132fc64c5e3227035bce85e1b877511a SHA-256: 12d162abba1960d6e470d28a3de6b5d5ac743bee4d62673a9d0bdd7a393e990d
124 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to disposable hosting or known malicious redirectors. The primary link, 'https://cctraff.ru/strik?keyword=cateye+strada+rd300w+manual', is identified as malicious. The document's structure and embedded links suggest it is designed to redirect users to potentially harmful websites, likely for phishing or malware distribution.

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://cctraff.ru/strik?keyword=cateye+strada+rd300w+manual In PDF document text
    • https://site-1036636.mozfiles.com/files/1036636/3286078833.pdfIn PDF document text
    • https://site-1038460.mozfiles.com/files/1038460/xedezezodotixedefe.pdfIn PDF document text
    • https://site-1036975.mozfiles.com/files/1036975/melofumenuliraravaji.pdfIn PDF document text
    • https://site-1038725.mozfiles.com/files/1038725/79588725717.pdfIn PDF document text
    • http://files.susangsterrett.com/uploads/1/3/1/3/131380476/441203.pdfIn PDF document text
    • http://posaf.mismacounsellingservice.com/uploads/1/3/2/6/132681352/tivopo-puzapijesu-wulojuzej.pdfIn PDF document text
    • http://tigegip.windermereneighborhoodseattle.org/uploads/1/3/1/6/131606490/japobinovawik.pdfIn PDF document text
    • http://raxigasi.sdcecd.com/uploads/1/3/0/7/130775164/c4489e32a5ae.pdfIn PDF document text
    • http://nokuro.resilienceuckfield.co.uk/uploads/1/3/0/7/130775432/9418071.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/07b7386c-e80e-46e4-b9ca-299d34600ef4/zotazapu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/145220a4-8e49-4710-8984-a41afe400fc2/78849774749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8885/5459/files/tatimukavebaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1095/6196/files/vestimentas_de_etnias_del_ecuador.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/61312301379.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_off00006ded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DED 5376 bytes
SHA-256: aadec19cf3376069fd881279cf0bf7c7595b6677c6fe4244260167a72fde2d30
font_01_sfnt_off00008032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8032 10628 bytes
SHA-256: 42a62ad1228953818e19f740bd3566d98880ccc5bb4b27073b6d241e4067dddf

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