Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ef97e4251c1b454…

MALICIOUS

PDF

37.7 KB Created: 2020-08-30 08:39:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c48fcee66b01067d12a6e074a73f9f3 SHA-1: cfa141ab565a1fc791cfa33ce95b051f8e9d618b SHA-256: 9ef97e4251c1b454519a4dfd4459b55ab86b03749bd947b8ffef2803d18ed6dd
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links. One of these links, https://ttraff.com/wix?keyword=hoja+pautada+para+imprimir, is identified as a malicious redirector. The document body contains garbled text but includes the same malicious URL and a benign-looking URL, suggesting a lure to a malicious site disguised within a large number of other links.

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/wix?keyword=hoja+pautada+para+imprimir
    • https://cdn.shopify.com/s/files/1/0430/7868/0737/files/spider_solitaire_apk_file.pdf
    • https://cdn.shopify.com/s/files/1/0437/1644/4315/files/xepikavogokig.pdf
    • https://cdn.shopify.com/s/files/1/0438/6023/0294/files/85507694381.pdf
    • https://static.usrfiles.com/ugd/93c935_0b3745412a814b2c919582a8409dfabe.pdf
    • https://static.usrfiles.com/ugd/b8c837_ffaf3c61f6b24b06917941de46807d89.pdf
    • https://static.usrfiles.com/ugd/b8c837_9badf7fb0ffd40e79498412c81767ac0.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/299219920.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/rezuna.pdf
    • https://cdn.shopify.com/s/files/1/0431/5371/9453/files/7425640730.pdf
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/migos_antidope_mp3_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/7473/8586/files/44441237646.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3135/files/gardenline_chainsaw_sharpener_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/2482/4995/files/60703542870.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_off000052e6.bin
68b0b9883d42f02263dc2b24323bb6e4fcde823c943026948d1d8bb93b3e456f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52E6 4932 bytes
font_01_sfnt_off00006399.bin
3226dc46cbf22a0ead2745d4eec2450fde6a6e4fbf51235b07b45a05084979b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6399 11460 bytes

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