Malicious PDF — malware analysis report

Static analysis result for SHA-256 0288234144aab671…

MALICIOUS

PDF

41.0 KB Created: 2020-10-02 09:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: d3d4461ac60e8a68edd4ea5a9037a710 SHA-1: f2bba92ecf6ac846cea4c7c9a9d8c0149a91d80e SHA-256: 0288234144aab6714a7684f3a466c55a5e478a83bde1860ae405a2aa9c97c3d8
184 Risk Score

Malware Insights

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

The PDF document contains a deceptive title and a large number of embedded links, many of which point to suspicious domains. Heuristics indicate it's a malicious redirector and a link farm, suggesting an attempt to drive traffic to malicious infrastructure or for SEO poisoning. The ML classifier strongly flagged this PDF as malicious.

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=shadi+me+zaroor+aana+full+movie+netflix In PDF document text
    • http://files.simplyconnectingthedots.com/uploads/1/3/1/0/131070702/c0ed7.pdfIn PDF document text
    • http://files.stabifoot.com/uploads/1/3/0/8/130814040/kitozepisoje.pdfIn PDF document text
    • http://files.ks-image.com/uploads/1/3/1/0/131070374/4097371.pdfIn PDF document text
    • https://site-1037218.mozfiles.com/files/1037218/maxafezununine.pdfIn PDF document text
    • https://site-1036874.mozfiles.com/files/1036874/gowebominasu.pdfIn PDF document text
    • https://site-1038982.mozfiles.com/files/1038982/80197896519.pdfIn PDF document text
    • https://site-1036693.mozfiles.com/files/1036693/damudozenidiganabituj.pdfIn PDF document text
    • https://site-1040179.mozfiles.com/files/1040179/gasewizid.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/4e1000cd-bad4-45a0-bb44-5030934f26d9/58537360214.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c9324fe-8ea9-43c0-90b0-8f47a65759ef/89186177895.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cba3f2d1-1137-4894-b544-e53163d50e9e/mesafunowomimisuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdaff31a-170e-4307-8864-0e72fd6d0b87/68481192040.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e81c27a-dcb1-4478-a9a5-9a939905ad37/xiwej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b43bd50-4313-4c80-90e5-9d92e32174fc/kizigodul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d039b366-d197-4b71-a078-728e06823535/xemumuxozireke.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_off00005032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5032 5132 bytes
SHA-256: 40cbbf39ae0b3bc7d292d547cbf383a2c8526794d9104bd0fea0d44f7e6cd91d
font_01_sfnt_off00006184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6184 12116 bytes
SHA-256: a64c7074de17dd559359dcff5dce6da447a27823fc9e97ff73a4cb90fc31058b
font_02_sfnt_off000088e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88E3 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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