Malicious PDF — malware analysis report

Static analysis result for SHA-256 f104e79d795c8a9a…

MALICIOUS

PDF

49.1 KB Created: 2020-08-16 15:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68bc724fc0354fabeeb88a4634923c85 SHA-1: 246b8a72efbaf5033ed7101921e66f0a79fa0fc9 SHA-256: f104e79d795c8a9a8a574b95bddc410d5f3914493e374e89a33fcaa5658980f5
120 Risk Score

Malware Insights

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

The PDF contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.cc/pify?keyword=appsync+cloudformation+example'. This indicates the document is designed to redirect users to malicious infrastructure. The PDF also contains a large number of external links, flagged by PDF_SEO_LINK_FARM, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The document body, though heavily obfuscated, contains text related to 'Appsync cloudformation example' and the malicious URL, reinforcing the lure.

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.cc/pify?keyword=appsync+cloudformation+example
    • http://files.pricklypearwax.com/uploads/1/3/2/6/132682040/2679927.pdf
    • https://cdn.shopify.com/s/files/1/0440/5523/2677/files/55820398171.pdf
    • https://cdn.shopify.com/s/files/1/0451/3182/5317/files/97008226865.pdf
    • https://cdn.shopify.com/s/files/1/0440/1568/1701/files/curso_de_arquitectura_de_software.pdf
    • https://cdn.shopify.com/s/files/1/0440/5392/1957/files/91513463975.pdf
    • https://cdn.shopify.com/s/files/1/0428/7863/2095/files/biluxoninudekolafixata.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdf
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/89671264439.pdf
    • https://cdn.shopify.com/s/files/1/0429/2473/6678/files/billy_idol_sweet_sixteen.pdf
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/8472685329.pdf
    • https://cdn.shopify.com/s/files/1/0438/6373/6475/files/43962913680.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_off00007a29.bin
01767b18a0d1f4b7087fe036a8169713021e916d8e3da907a478a182c22093a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A29 5460 bytes
font_01_sfnt_off00008ca6.bin
eec5fa03a87368b9909a3943f47b47335742e53249838b6ea2b21c9f5ac8d5a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CA6 13580 bytes

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