Malicious PDF — malware analysis report

Static analysis result for SHA-256 83bea67a827b4a4c…

MALICIOUS

PDF

49.8 KB Created: 2020-08-04 04:53:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e6caada85829ceea6e6fa0bc1d36c88d SHA-1: 150bddc99d7d391c140dde584f24511e2a4a757c SHA-256: 83bea67a827b4a4cdc4df0da989b55c111b76ab071b486e9b5f4b5e6d23177c6
154 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. The ML classifier strongly indicates maliciousness. The primary attack pattern involves a link farm designed to obscure malicious redirector infrastructure, likely as a lure for users seeking specific PDF content.

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 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.
  • 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://ttraff.ru/pify?keyword=al+quran+arabic+english+pdf In PDF document text
    • http://files.danieldetogni.com/uploads/1/3/1/3/131381799/531326.pdfIn PDF document text
    • http://files.connectedrealities.com/uploads/1/3/1/3/131381605/84c72870255ea.pdfIn PDF document text
    • http://files.alicelawrancexx.com/uploads/1/3/1/6/131606006/8443794.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/1/0437/9040/1685/files/96512393365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3451/6376/files/kiden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6671/0429/files/cbse_class_12_chemistry_syllabus_2020_20_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/lakijopumaratibajubexil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2310/files/best_markup_app_ipad_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3260/0985/files/98076601992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7675/5349/files/lozivumokul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3347/5737/files/bosopoben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/76651913707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4891/8440/files/genisux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/finusilojufuzef.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a72.bin
edf08d6fed4104d9f7f47e144923d81b7a701df53016b60a6c07e0c745a772a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A72 5672 bytes
font_01_sfnt_off00006da5.bin
f4f99aba29ab25cff7da7e97d55f4f6706f9d3c93207531efb05bc74b4b40c99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA5 10312 bytes
font_02_sfnt_off00009117.bin
08893b4c897818475e9a753ddda69a0f65dd2d57d536aa5d0f5b48298773e5d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9117 22876 bytes

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