Malicious PDF — malware analysis report

Static analysis result for SHA-256 75d629d4d4bebddf…

MALICIOUS

PDF

41.6 KB Created: 2020-08-03 11:10:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8913dfaa73e2f4db6c54ea8fcc998c2e SHA-1: 443ea1592037493132c15c969de65d3498482f7c SHA-256: 75d629d4d4bebddf8dd69c8d3d916d1fb7325c7c6b36ba8436dc36bf4c7faf0e
120 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 'https://ttraff.cc/pify?keyword=joana+leveling+guide'. The document body also contains this URL, suggesting it is intended to lure the user to a malicious site. The file also contains a large number of external PDF links, many hosted on Shopify, which is flagged as a PDF link farm. The primary intent appears to be directing users to malicious infrastructure.

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=joana+leveling+guide
    • http://files.sofiaahmad.com/uploads/1/3/0/8/130873893/b4dc5.pdf
    • http://files.inspiredmusic.us/uploads/1/3/0/9/130969454/da2e4f.pdf
    • http://files.fbcrecreation.com/uploads/1/3/0/7/130776110/b59f90b7.pdf
    • http://files.universityroadhouse.com/uploads/1/3/1/4/131409794/8a1046df1.pdf
    • https://cdn.shopify.com/s/files/1/0432/0670/5312/files/netipelumilanidim.pdf
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/lagajelejuxokoxemajazes.pdf
    • https://cdn.shopify.com/s/files/1/0434/1936/9639/files/nokibatobuno.pdf
    • https://cdn.shopify.com/s/files/1/0434/1114/4861/files/18065248363.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdf
    • https://cdn.shopify.com/s/files/1/0431/5470/2496/files/jibevawijasivadurus.pdf
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/fejokatutepiwinetek.pdf
    • https://cdn.shopify.com/s/files/1/0432/7384/6952/files/80885525362.pdf
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/konepesore.pdf
    • https://cdn.shopify.com/s/files/1/0437/0422/1849/files/chyna_she_hulk.pdf
    • https://cdn.shopify.com/s/files/1/0427/5824/2470/files/vonatir.pdf
    • https://cdn.shopify.com/s/files/1/0439/3733/3406/files/kobuzukezasidadonokal.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_off00006675.bin
160e649fb7b4394c2eadb5ac72827573a4d66506073360e3506da20d41a5521d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6675 4768 bytes
font_01_sfnt_off000076c8.bin
da89546590a0f5130328b485677a9aa161bfa7ae844dcd785612c0e65acd12a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C8 10272 bytes

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