Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc54ed7d0ceee4a1…

MALICIOUS

PDF

49.4 KB Created: 2020-08-10 14:29:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 801f979a8c4a3cedc95143b216ff30d3 SHA-1: da42a6775c8b7cf0e32e1aab3a91f371b86e0d82 SHA-256: cc54ed7d0ceee4a1335c087ef05ca985238716f59695a07786843b54ef7fe36e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, found in the document body, redirects to a malicious URL on 'ttraff.ru'. This suggests a phishing or redirection attack aimed at delivering malware or leading users to malicious content. The presence of numerous external links, many with numeric or book-like slugs, indicates an attempt to manipulate search engine results or distribute malicious content through a link farm.

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=organic+chemistry+basic+formulas+pdf
    • http://files.cassandrakgolden.com/uploads/1/3/0/7/130776599/9c81636f4.pdf
    • http://files.mrsignworks.com/uploads/1/3/0/8/130813837/75383.pdf
    • http://files.manzanitaspreschool.org/uploads/1/3/1/3/131379290/povuvarijurup_vepinakov.pdf
    • http://files.awakennirvana101.com/uploads/1/3/2/6/132683267/8874726.pdf
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/6775922721.pdf
    • https://cdn.shopify.com/s/files/1/0435/5401/3336/files/vazesasedaleveke.pdf
    • https://cdn.shopify.com/s/files/1/0431/4546/1909/files/geliduzavusamol.pdf
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/tebewaxarupaxa.pdf
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/10779693082.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdf
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/raxefofitisir.pdf
    • https://cdn.shopify.com/s/files/1/0432/5035/2296/files/34179477679.pdf
    • https://cdn.shopify.com/s/files/1/0430/2084/5210/files/wvia_tv_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/zolizefobo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/69969765018.pdf
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/47139928277.pdf
    • https://cdn.shopify.com/s/files/1/0440/0391/7974/files/kjv_1611_with_apocrypha.pdf
    • https://cdn.shopify.com/s/files/1/0443/0397/4556/files/electronics_second_edition_hambley.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_off0000815c.bin
0ae6e78c223d517070dfca1d5aa5e3b16a7fd233a6aae1de54164c472eeb48dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x815C 5836 bytes
font_01_sfnt_off00009508.bin
3e903b8e2b094493174042c4777bcb42eda981032e8a7e9e65b050a9f306d7c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x9508 10304 bytes