Malicious PDF — malware analysis report

Static analysis result for SHA-256 9adc75630385b3b1…

MALICIOUS

PDF

43.4 KB Created: 2020-10-10 04:05:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: b7c52e044e0ad0795a559a6238955e37 SHA-1: 6589e6b901bf0691c4af8e56694ad00aeee7bbd5 SHA-256: 9adc75630385b3b1db97399031b8f0208eec0374964801007e3cab9e1a33f217
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://gettraff.ru/strik?keyword=clash+of+lights+s3+apk+download+free+full+version In PDF document text
    • http://files.mastermindandbrain.com/uploads/1/3/2/6/132681698/fuzeg-zisakimugek.pdfIn PDF document text
    • http://files.stephanglietsch.com/uploads/1/3/1/6/131636576/2680562.pdfIn PDF document text
    • http://files.rubywongfotip.com/uploads/1/3/2/8/132815342/6305846.pdfIn PDF document text
    • https://site-1041846.mozfiles.com/files/1041846/33234998255.pdfIn PDF document text
    • https://site-1037922.mozfiles.com/files/1037922/440917170.pdfIn PDF document text
    • https://site-1038602.mozfiles.com/files/1038602/49522796123.pdfIn PDF document text
    • https://site-1037029.mozfiles.com/files/1037029/92749261383.pdfIn PDF document text
    • https://site-1037870.mozfiles.com/files/1037870/19897248967.pdfIn PDF document text
    • https://site-1036871.mozfiles.com/files/1036871/nejalikiferikazedozid.pdfIn PDF document text
    • https://site-1040005.mozfiles.com/files/1040005/8963704804.pdfIn PDF document text
    • https://site-1038590.mozfiles.com/files/1038590/55840878454.pdfIn PDF document text
    • https://site-1037843.mozfiles.com/files/1037843/91005308979.pdfIn PDF document text
    • https://site-1040124.mozfiles.com/files/1040124/44806707724.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/7603/4198/files/10666003263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3921/files/podagi.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006aac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAC 5588 bytes
SHA-256: 207037828498131e661936538ad744f57f06541a8abaf7192fefe93e93867d18
font_01_sfnt_off00007dbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBE 10180 bytes
SHA-256: 7605a33f05cf6f0368f2793c8ef2b2c75492261b6bfcf0602c5e4fb26479ea68

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