Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7cc6f329a970ac6…

MALICIOUS

PDF

56.8 KB Created: 2020-08-19 03:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ed3f70ca476c66ad7c8976a8971a7072 SHA-1: d680e4d86aa362c119a2538c50f03629884314cc SHA-256: d7cc6f329a970ac6d27cd7a7d45b766ebb9aeb3d2f2b3b0c1e97fc543e23766e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm behavior, embedding 22 external links, many of which point to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains the same redirector URL. This suggests a phishing or redirection campaign aiming to lead users to malicious infrastructure.

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.com/pify?keyword=herbivores+omnivores+carnivores+oh+my+answer+sheet
    • http://dimulo.westminsterbbic.org/uploads/1/3/1/1/131164250/wexesa.pdf
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/wiforesozexoboniwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9769/4109/files/70421717659.pdf
    • https://cdn.shopify.com/s/files/1/0432/3033/1039/files/tecnologia_na_agricultura.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/disawu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/91847014227.pdf
    • https://cdn.shopify.com/s/files/1/0433/9925/0072/files/tizukobipupifovoxotozi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7145/4883/files/programa_para_unir_online.pdf
    • https://cdn.shopify.com/s/files/1/0440/0444/2262/files/32224745777.pdf
    • https://cdn.shopify.com/s/files/1/0434/7750/0056/files/5654634654.pdf
    • https://cdn.shopify.com/s/files/1/0432/3259/2027/files/dewonexosapomo.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_off00009db9.bin
ba565ebc8bcc45b1db79bb321baece8d2babc9c19b11ef3ea38e207e3b780894		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DB9 5364 bytes
font_01_sfnt_off0000afd4.bin
26602fc6a815e8d4587426bc66e3de22badfc04d95e1ddf9a9ee0585b7cf861e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFD4 11360 bytes

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