Malicious PDF — malware analysis report

Static analysis result for SHA-256 23cac715d2bc249e…

MALICIOUS

PDF

32.8 KB Created: 2020-08-31 19:58:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c08906c03c3a21953a60e5d49ad4c6ba SHA-1: c67333f06daee087c6afc2fb9f28a0bd22eeede5 SHA-256: 23cac715d2bc249eed98ffbfbef73458d3da74a1164c8fdae2460e3454a6d0f8
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Anne marie marshmello ringtone' and a URL that aligns with the malicious redirector. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous other links, likely for SEO manipulation or to host additional malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/wix?keyword=anne+marie+marshmello+ringtone
    • https://cdn.shopify.com/s/files/1/0432/0700/0219/files/mesukulegiwiruvulezaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/8522/5372/files/anisotropic_effect_in_nmr.pdf
    • https://cdn.shopify.com/s/files/1/0434/2651/3048/files/97890470894.pdf
    • https://cdn.shopify.com/s/files/1/0439/8078/3774/files/ganifoluxapazad.pdf
    • https://cdn.shopify.com/s/files/1/0429/9279/5801/files/cara_mendidik_anak.pdf
    • https://cdn.shopify.com/s/files/1/0433/6861/1996/files/musasi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/virtual_piano_keyboard.pdf
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/tofomelijatijufesasati.pdf
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/addzest_max550hd_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6306/6270/files/72738221920.pdf
    • https://cdn.shopify.com/s/files/1/0434/6891/4838/files/11th_biology_textbook_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0432/6388/5472/files/coronary_artery_disease_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0440/1024/2198/files/tazaxuxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2402/3715/files/balanitis_en_nios_tratamiento_antibiotico.pdf
    • https://cdn.shopify.com/s/files/1/0428/9173/9295/files/51064732313.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045ee.bin
35264a18c8c4a245749ff983974a864c9a844d1ec4a86740a2a45b082d34f06e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45EE 5088 bytes
font_01_sfnt_off00005707.bin
bd33b6d72c9c2b5e0d48e9ae15a91b3db18796692f0254a9dc6971335822fb4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5707 9300 bytes

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