Malicious PDF — malware analysis report

Static analysis result for SHA-256 ede0e9bca49d90c4…

MALICIOUS

PDF

65.2 KB Created: 2020-08-12 13:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52cef6387e36304d9088fcc5e46f0645 SHA-1: 14310f84f61f187acc79cb237de11f08528090f6 SHA-256: ede0e9bca49d90c4fc581edb4a387a5683bee68188ce29c8729a5681e325c94d
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic firing indicating it's a malicious redirector link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=g7+communique+pdf, which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to 'G7 communique pdf' and the wkhtmltopdf application, suggesting a lure to disguise malicious content. The presence of many external PDF links, including benign ones hosted on Shopify, is characteristic of SEO poisoning or link farm techniques to increase visibility and traffic to malicious destinations.

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=g7+communique+pdf
    • http://files.drmanuelamenendez.com/uploads/1/3/0/7/130739028/763a043e06f7.pdf
    • http://files.missionalworship.com/uploads/1/3/2/3/132302764/0aa1000e9.pdf
    • http://files.worxforms.com/uploads/1/3/2/7/132740764/kakerugonames_jukufamepenib_fedabudifib_lomudigesupoda.pdf
    • http://files.coastlinemetals.com/uploads/1/3/1/4/131407952/sanakixaxaburovitad.pdf
    • http://files.koreanatoledo.com/uploads/1/3/0/9/130969037/0167074.pdf
    • https://cdn.shopify.com/s/files/1/0452/4271/2221/files/administrao_estratgica_wright_kroll_e_parnell.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/c_udp_listener.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/32570795987.pdf
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/66869786434.pdf
    • https://cdn.shopify.com/s/files/1/0435/0027/3830/files/6548919831.pdf
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/blender_boolean_addon.pdf
    • https://cdn.shopify.com/s/files/1/0432/7571/4715/files/landslide_in_kerala.pdf
    • https://cdn.shopify.com/s/files/1/0449/0782/3259/files/58380860701.pdf
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/voropufafu.pdf
    • https://cdn.shopify.com/s/files/1/0439/3671/0824/files/alstom_logo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2283550224.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_off0000c1ce.bin
fd52326b4c700fbeb63498bfb628ba40aaa994735ef7232862b1fe9d2f35d7c7
pdf-font-stream PDF embedded font (sfnt) at offset 0xC1CE 5020 bytes
font_01_sfnt_off0000d2e3.bin
7d0a17fe3920819ac9c2000ee7fae3a3ac06ae62ffb27cec99586f7dedb9f325
pdf-font-stream PDF embedded font (sfnt) at offset 0xD2E3 11232 bytes