Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bea111357093ca0…

MALICIOUS

PDF

39.9 KB Created: 2020-08-24 14:10:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83387a36e2ef1cd60993a12b855f1297 SHA-1: 904c773e39e5800389955188e1fcf222ecae4c34 SHA-256: 4bea111357093ca0699726c9ea8c0d90f8f3fb9072ef134eb49dc91f9e0aed26
120 Risk Score

Malware Insights

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

The PDF document contains a lure related to transferring data between iOS and Android devices. It embeds multiple links, with one identified as a malicious redirector pointing to 'https://ttraff.ru/pify?keyword=como+transferir+backup+ios+para+android'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this malicious redirection. Additionally, the 'PDF_SEO_LINK_FARM' heuristic indicates a large number of embedded links, suggesting an attempt to distribute malicious content or engage in SEO manipulation.

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/pify?keyword=como+transferir+backup+ios+para+android
    • http://files.gameworldparty.com/uploads/1/3/0/7/130775135/malirafokadix.pdf
    • https://cdn.shopify.com/s/files/1/0437/3587/5749/files/mogoluxadotonixogalapoli.pdf
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/rizovizufifunifatemijut.pdf
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/27750070805.pdf
    • https://cdn.shopify.com/s/files/1/0434/4938/5110/files/82461646597.pdf
    • https://cdn.shopify.com/s/files/1/0432/3963/7155/files/10067161004.pdf
    • https://cdn.shopify.com/s/files/1/0431/0496/0661/files/bloodborne_progression_map.pdf
    • https://cdn.shopify.com/s/files/1/0428/9318/1087/files/xezevurivewazufa.pdf
    • https://cdn.shopify.com/s/files/1/0430/3093/7751/files/fikobir.pdf
    • https://cdn.shopify.com/s/files/1/0428/3331/3958/files/wazima.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_off00005e51.bin
d5ffaf6b819220bc9a446ed3c8faf486a76936c51c39bdb924170530d3fe68b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E51 5376 bytes
font_01_sfnt_off00007076.bin
f4360dcc5528fb227964f5beecbc54cfa062c4b7a8b697654a06eba6d7bdd2d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7076 10168 bytes

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