Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a5e728957986fbe…

MALICIOUS

PDF

51.2 KB Created: 2020-08-12 14:04:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 959084d468a7c4f7aecbc5a673f0e72a SHA-1: 0f58a630510f91cd6a54795a923319960fb32627 SHA-256: 2a5e728957986fbe19ed41219981705e77d3cddaefa3f25f17db856a56d69359
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=la+tecnolog%25C3%25ADa+educativa+como+disciplina+pedag%25C3%25B3gica+pdf'. Another critical heuristic identified a PDF link farm, suggesting the document is designed to distribute a large number of external links, many of which point to Shopify domains. The document body, though partially corrupted, contains the same URL as the primary malicious redirector, reinforcing the lure. The presence of multiple unknown and potentially malicious URLs indicates a campaign focused on redirecting users to harmful content.

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.com/pify?keyword=la+tecnolog%25C3%25ADa+educativa+como+disciplina+pedag%25C3%25B3gica+pdf
    • http://fadibix.libertyjudycenter.com/uploads/1/3/0/8/130814124/vejabufipenodis.pdf
    • http://files.leehwanxiao.com/uploads/1/3/0/7/130739062/fb36cc0741e6.pdf
    • http://bekena.summerlandcreek.com/uploads/1/3/0/7/130776485/eaf29405108e7d8.pdf
    • http://files.laceyfisherlpc.com/uploads/1/3/1/4/131438567/depotowikona.pdf
    • http://files.centralfloridarowing.com/uploads/1/3/1/4/131437655/debodob-rupuvagarapi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3429/files/1917214422.pdf
    • https://cdn.shopify.com/s/files/1/0431/0587/8170/files/jolly_phonics_flashcards.pdf
    • https://cdn.shopify.com/s/files/1/0430/7274/9721/files/92589786636.pdf
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/musavesupigosipowulituzo.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/duroxugipolizuvuzexuxases.pdf
    • https://cdn.shopify.com/s/files/1/0434/1560/1304/files/37484009327.pdf
    • https://cdn.shopify.com/s/files/1/0432/1542/1600/files/58455284853.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48695811849.pdf
    • https://cdn.shopify.com/s/files/1/0432/4153/7696/files/51647380536.pdf
    • https://cdn.shopify.com/s/files/1/0434/2782/3778/files/26256944186.pdf
    • https://cdn.shopify.com/s/files/1/0432/0487/0305/files/autonics_sensors_catalog.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_off0000841f.bin
188af22e9bba372393125ebecd9c79ee3caf583709a93546841a8be961fede42
pdf-font-stream PDF embedded font (sfnt) at offset 0x841F 5572 bytes
font_01_sfnt_off000096ce.bin
1158ac4a6734691fa0710549f4bf5acb0f254dd8b8e8cc0f51b4f77054093b8c
pdf-font-stream PDF embedded font (sfnt) at offset 0x96CE 11540 bytes