Malicious PDF — malware analysis report

Static analysis result for SHA-256 0646337044a1eb1d…

MALICIOUS

PDF

46.6 KB Created: 2020-08-08 21:44:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bae4021f75cfa9da97ef9dc081526118 SHA-1: 879966bad100b2967ad7a6f73f3efd18288b173c SHA-256: 0646337044a1eb1dc8d2187253ac4be21efeb36a09bb144101109eacc2f3985d
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, identified as a link farm, with a critical heuristic firing for redirecting to malicious infrastructure. The primary malicious URL is https://ttraff.cc/pify?keyword=third+eye+opening+pdf, which likely serves as a gateway to further malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect users to malicious sites, potentially 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 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.cc/pify?keyword=third+eye+opening+pdf
    • http://tabir.marosmars.com/uploads/1/3/1/6/131606349/meneliwupu-netites-gunojutupaj.pdf
    • http://files.literacywagoll.com/uploads/1/3/0/7/130739542/xufogozididag.pdf
    • http://files.indiajoneseatery.com/uploads/1/3/1/6/131637658/913a6.pdf
    • http://files.gunillakester.com/uploads/1/3/0/7/130740483/vudofugu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/0342/8515/files/calendario_mensual_2020_para_imprimir.pdf
    • https://cdn.shopify.com/s/files/1/0429/0841/8211/files/always_and_forever_lara_jean_espanol.pdf
    • https://cdn.shopify.com/s/files/1/0437/2371/8824/files/finuroxomomixidonifex.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mapiguwidekedod.pdf
    • https://cdn.shopify.com/s/files/1/0433/3839/9912/files/mukeketimilebanizufesujo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/appsc_aee_previous_papers_for_mechanical_engineering.pdf
    • https://cdn.shopify.com/s/files/1/0434/5495/5672/files/discord._py_help_command.pdf
    • https://cdn.shopify.com/s/files/1/0431/1570/8580/files/wasivirotuwon.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xidegafizupewutuzu.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/50731791032.pdf
    • https://cdn.shopify.com/s/files/1/0433/4944/2715/files/nassau_county_civil_service.pdf
    • https://cdn.shopify.com/s/files/1/0434/0337/8839/files/16766917057.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d2e.bin
bd2b8b3b3af1bb5d1eb7261b49be4140ed83e303a5e8d749c8c88fdc2c471633		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2E 4644 bytes
font_01_sfnt_off00007ce7.bin
1e8f4772e3aeb66a946d38de4ffe20c220b85c108aec09e46e02b65e1c7ebfd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE7 10212 bytes
font_02_sfnt_off00009f9d.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F9D 4324 bytes

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